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This paper presents a simple space vector modulation (SVM) strategy for a three-phase indirect matrix converter (IMC) to reduce the common-mode voltage (CMV) and output harmonic distortion. To suppress the peak value of the CMV to 57.7% of the input phase voltage, three active voltage vectors are used to generate the desired output voltage with arbitrary amplitude and frequency. However, the output waveform quality of the IMC deteriorates due to the absence of the zero voltage vectors. To overcome this problem, the proposed strategy is redesigned to control the rectifier stage by utilizing three active current vectors instead of two as usual. Consequently, the constant average dc-link voltage is achieved, which can improve the output performance in terms of the output voltage and current harmonic distortion. Compared to the existing strategies, the proposed strategy can reduce the CMV and maintain output harmonic distortion without increasing the computation burden. The proposed strategy is also straightforward as well as simple implementation. Both simulation and experimental results are provided to verify the effectiveness of the proposed strategy.
Quoc-Hoan Tran; Tuyen Dinh Nguyen; Le Minh Phuong. Simplified Space-Vector Modulation Strategy for Indirect Matrix Converter With Common-Mode Voltage and Harmonic Distortion Reduction. IEEE Access 2020, 8, 218489 -218498.
AMA StyleQuoc-Hoan Tran, Tuyen Dinh Nguyen, Le Minh Phuong. Simplified Space-Vector Modulation Strategy for Indirect Matrix Converter With Common-Mode Voltage and Harmonic Distortion Reduction. IEEE Access. 2020; 8 (99):218489-218498.
Chicago/Turabian StyleQuoc-Hoan Tran; Tuyen Dinh Nguyen; Le Minh Phuong. 2020. "Simplified Space-Vector Modulation Strategy for Indirect Matrix Converter With Common-Mode Voltage and Harmonic Distortion Reduction." IEEE Access 8, no. 99: 218489-218498.
This paper presents the implementation of a two-stage light-emitting diode (LED) driver based on commercial integrated circuits (IC). The presented LED driver circuit topology, which is designed to drive a 150 W LED module, consists of two stages: AC-DC power factor correction (PFC) stage and DC/DC power converter stage. The implementation of the PFC stage uses IC NCP1608, which uses the critical conduction mode to guarantee a unity input power factor with a wide range of input voltages. The DC/DC power converter with soft-switching characteristics for the entire load range uses IC FLS2100XS. Furthermore, the design of an electromagnetic interference (EMI) filter for the LED driver and the dimming control circuit are discussed in detail. The hardware prototype, an LED lighting system, with a rated power of 150 W/32 V from a nominal 220 V/50 Hz AC voltage supply was tested to show the effectiveness of the design. The presented LED driver was tested for street lighting, and the experimental results show that the power factor (PF) was higher than 0.97, the total harmonics distortion (THD) was lower than 7%, and the efficiency was 91.7% at full load. The results prove that the performance of the presented LED driver complies with the standards: IEC61000-3-2 and CIRSP 15:2009.
Ngo Thanh Tung; Nguyen Dinh Tuyen; Nguyen Minh Huy; Nguyen Hoai Phong; Ngo Cao Cuong; Le Minh Phuong. Design and Implementation of 150 W AC/DC LED Driver with Unity Power Factor, Low THD, and Dimming Capability. Electronics 2019, 9, 52 .
AMA StyleNgo Thanh Tung, Nguyen Dinh Tuyen, Nguyen Minh Huy, Nguyen Hoai Phong, Ngo Cao Cuong, Le Minh Phuong. Design and Implementation of 150 W AC/DC LED Driver with Unity Power Factor, Low THD, and Dimming Capability. Electronics. 2019; 9 (1):52.
Chicago/Turabian StyleNgo Thanh Tung; Nguyen Dinh Tuyen; Nguyen Minh Huy; Nguyen Hoai Phong; Ngo Cao Cuong; Le Minh Phuong. 2019. "Design and Implementation of 150 W AC/DC LED Driver with Unity Power Factor, Low THD, and Dimming Capability." Electronics 9, no. 1: 52.
The multilevel indirect matrix converter (IMC) is a merit of power converter for feeding a three-phase load from three-phase power supply because it has several attractive features such as: Sinusoidal input/output currents, bidirectional power flow, long lifetime due to the absence of bulky electrolytic capacitors. As compared to the conventional IMC, the multilevel IMC provides high output performance by increasing the level of output voltage. In this paper, the novel approach topology of multilevel IMC by using the combination of the cascaded rectifier and the three-level T-Type inverter is introduced. Furthermore, the new space vector pulse width modulation (SVPWM) method for the presented multilevel IMC that eliminate the common-mode voltage is proposed in this paper. The simulation study is carried out in PSIM software to verify the proposed modulation method. Then, an experimental system is built using a three-phase RL load, a multilevel IMC, a DSP controller board and other elements to verify the effectiveness of the proposed modulation method. Some simulation and experimental results are illustrated to confirm the theory analysis.
Nguyen Dinh Tuyen; Le Minh Phuong. SVPWM Method for Multilevel Indirect Matrix Converter with Eliminate Common Mode Voltage. Applied Sciences 2019, 9, 1342 .
AMA StyleNguyen Dinh Tuyen, Le Minh Phuong. SVPWM Method for Multilevel Indirect Matrix Converter with Eliminate Common Mode Voltage. Applied Sciences. 2019; 9 (7):1342.
Chicago/Turabian StyleNguyen Dinh Tuyen; Le Minh Phuong. 2019. "SVPWM Method for Multilevel Indirect Matrix Converter with Eliminate Common Mode Voltage." Applied Sciences 9, no. 7: 1342.
This paper presents a control strategy for the AC/DC matrix converter (MC) to achieve the constant output current as well as to reduce the input current harmonic distortion under unbalanced input voltages. The Proportional Integral (PI) controller is used to regulate the output current. Meanwhile, in order to suppress the harmonic distortion of input currents, two resonant compensators are employed in feedback paths of input currents in the αβ stationary frame. Finally, the proposed control strategy can achieve the constant output current and sinusoidal input currents without the phase-locked loop (PLL) and the extraction of the positive-negative voltage sequence. Simulation results are given to validate the effectiveness of the proposed control strategy.
Thanh-Luan Nguyen; Tuyen D. Nguyen; Hong-Hee Lee. Resonant compensators to suppress input current harmonics for AC/DC matrix converters under unbalanced input voltages. IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society 2017, 7354 -7359.
AMA StyleThanh-Luan Nguyen, Tuyen D. Nguyen, Hong-Hee Lee. Resonant compensators to suppress input current harmonics for AC/DC matrix converters under unbalanced input voltages. IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society. 2017; ():7354-7359.
Chicago/Turabian StyleThanh-Luan Nguyen; Tuyen D. Nguyen; Hong-Hee Lee. 2017. "Resonant compensators to suppress input current harmonics for AC/DC matrix converters under unbalanced input voltages." IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society , no. : 7354-7359.
Pulse width modulation strategies have been developed for indirect matrix converters (IMCs) in order to improve their performance. In indirect matrix converters, the LC input filter is used to remove input current harmonics and electromagnetic interference problems. Unfortunately, due to the existence of the input filter, the input power factor is diminished, especially during operation at low voltage outputs. In this paper, a new space vector modulation (SVM) is proposed to compensate for the input power factor of the indirect matrix converter. Both computer simulation and experimental studies through hardware implementation were performed to verify the effectiveness of the proposed modulation strategy.
Nguyen Dinh Tuyen; Phan Quoc Dzung. Space Vector Modulation for an Indirect Matrix Converter with Improved Input Power Factor. Energies 2017, 10, 588 .
AMA StyleNguyen Dinh Tuyen, Phan Quoc Dzung. Space Vector Modulation for an Indirect Matrix Converter with Improved Input Power Factor. Energies. 2017; 10 (5):588.
Chicago/Turabian StyleNguyen Dinh Tuyen; Phan Quoc Dzung. 2017. "Space Vector Modulation for an Indirect Matrix Converter with Improved Input Power Factor." Energies 10, no. 5: 588.
The objective of this paper is to present a new method to control the TNPC inverter with output LC filter based on the Predictive controller. Furthermore, the balance voltage capacitors is also obtained with the proposed method. The model of the system is used to establish the equations, which can be applied to calculate the future values of the load voltage and the dc-link capacitor voltages at the next sampling time. After that, the optimal voltage vectors that minimize both the load voltage and the dc-link capacitor voltages error which are chosen for the next switching state of the TNPC inverter. Obtained simulation and experimental results verified the theoretical analysis and demonstrated that the load voltage is almost sinusoidal in steady-state operation regardless the load is linear or not.
Hai N. Tran; Tuyen D. Nguyen. Predictive voltage controller for T-type NPC inverter. 2016 IEEE Region 10 Conference (TENCON) 2017, 305 -310.
AMA StyleHai N. Tran, Tuyen D. Nguyen. Predictive voltage controller for T-type NPC inverter. 2016 IEEE Region 10 Conference (TENCON). 2017; ():305-310.
Chicago/Turabian StyleHai N. Tran; Tuyen D. Nguyen. 2017. "Predictive voltage controller for T-type NPC inverter." 2016 IEEE Region 10 Conference (TENCON) , no. : 305-310.
This paper presents an indirect matrix converter (IMC) topology to fed an open-end winding load directly from three-phase ac power supply without using any intermediate energy storage element. The presented topology is combined a conventional bidirectional rectifier stage and dual two-level inverter stage. The carrier-based pulse width modulation (CBPWM) suitable to this converter controlled is also presented. The proposed CBPWM is easily implemented by compared the high frequency carrier signals with the reference signals to generate the gating signals for all power switches in the converter. Theory analysis and simulation results are provided to show the effectiveness of the proposed method.
Tuyen D. Nguyen; Quoc Dung Phan; Viet C. Nguyen; Hai N. Tran; Tien T. Nguyen. Carrier-based PWM modulation for indirect matrix converter fed open-end winding load. 2016 IEEE Region 10 Conference (TENCON) 2017, 3298 -3303.
AMA StyleTuyen D. Nguyen, Quoc Dung Phan, Viet C. Nguyen, Hai N. Tran, Tien T. Nguyen. Carrier-based PWM modulation for indirect matrix converter fed open-end winding load. 2016 IEEE Region 10 Conference (TENCON). 2017; ():3298-3303.
Chicago/Turabian StyleTuyen D. Nguyen; Quoc Dung Phan; Viet C. Nguyen; Hai N. Tran; Tien T. Nguyen. 2017. "Carrier-based PWM modulation for indirect matrix converter fed open-end winding load." 2016 IEEE Region 10 Conference (TENCON) , no. : 3298-3303.
This paper introduces a predictive voltage controller for multilevel inverter used in Dynamic Voltage Restorer, which is able to protect a sensitive load against grid voltage sags dynamically. The compensated voltages are obtained by using Phase-Lock Loop to detect the phase and the magnitude of the grid voltage then compare to the load reference voltage. A three-phase NPC inverter with output LC filter is used to generate the ac voltage that will be injected to the load via injection transformer to compensate sag voltages. A new method to generate very high quality compensated voltages based on predictive controller will be presented. The model of the systems include NPC inverter and LC filter are built to establish the equations that can be applied to calculate the future values of the compensated voltage and the dc link voltage capacitor at the next sampling time. After that, the optimal voltage vectors that minimize both the compensated voltage and the dc link capacitor errors will be chosen for the next switching state of the NPC inverter. Obtained simulation results verified the theoretical analysis. The compensated voltage is almost sinusoidal and the load voltage is always constant with THD lower than 2% when facing voltage sags.
Hai N. Tran; Phan Quoc Dzung; Nhuan A. Le; Tuyen Nguyen. Dynamic voltage restorer-multilevel inverter based on predictive voltage controller. 2016 IEEE International Conference on Sustainable Energy Technologies (ICSET) 2016, 174 -179.
AMA StyleHai N. Tran, Phan Quoc Dzung, Nhuan A. Le, Tuyen Nguyen. Dynamic voltage restorer-multilevel inverter based on predictive voltage controller. 2016 IEEE International Conference on Sustainable Energy Technologies (ICSET). 2016; ():174-179.
Chicago/Turabian StyleHai N. Tran; Phan Quoc Dzung; Nhuan A. Le; Tuyen Nguyen. 2016. "Dynamic voltage restorer-multilevel inverter based on predictive voltage controller." 2016 IEEE International Conference on Sustainable Energy Technologies (ICSET) , no. : 174-179.
This paper proposes an enhanced distributed generation (DG) unit with an adaptive virtual impedance control approach in order to solve the inaccurate reactive power sharing problem. The proposed method can adaptively regulate DG units with the aid of the equivalent impedance, and the mismatching problem of the feeder impedance is compensated by sharing the reactive power accurately. The proposed control strategy can be implemented directly without any pre-knowledge of the feeder impedances. Simulations are performed to validate the effectiveness of the proposed control approach.
Tuan V. Hoang; Tuyen Nguyen; Hong-Hee Lee. Adaptive virtual impedance control scheme to eliminate reactive power sharing errors in islanded microgrid. 2016 IEEE International Conference on Sustainable Energy Technologies (ICSET) 2016, 224 -229.
AMA StyleTuan V. Hoang, Tuyen Nguyen, Hong-Hee Lee. Adaptive virtual impedance control scheme to eliminate reactive power sharing errors in islanded microgrid. 2016 IEEE International Conference on Sustainable Energy Technologies (ICSET). 2016; ():224-229.
Chicago/Turabian StyleTuan V. Hoang; Tuyen Nguyen; Hong-Hee Lee. 2016. "Adaptive virtual impedance control scheme to eliminate reactive power sharing errors in islanded microgrid." 2016 IEEE International Conference on Sustainable Energy Technologies (ICSET) , no. : 224-229.
A space vector modulation (SVM) method to eliminate common-mode voltage (CMV) for matrix converters (MCs) can effectively solve many problems in electrical systems. However, the input power factor (IPF) of the MC is significantly degraded under light-load conditions due to the input filter's characteristics. In this paper, a new switching strategy is proposed to compensate the IPF for the zero CMV-SVM method in MCs. The proposed strategy is based on the study of rotating-vector behavior and rearrangement of duty cycles in order to achieve the zero CMV, unity or the maximum achievable value of IPF, as well as a good performance of MCs. Simulation results are provided to validate the correctness of the proposed strategy.
Huu-Nhan Nguyen; Tuyen Nguyen; Hong-Hee Lee. A modulation strategy to eliminate CMV for matrix converters with input power factor compensation. IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society 2016, 6237 -6242.
AMA StyleHuu-Nhan Nguyen, Tuyen Nguyen, Hong-Hee Lee. A modulation strategy to eliminate CMV for matrix converters with input power factor compensation. IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society. 2016; ():6237-6242.
Chicago/Turabian StyleHuu-Nhan Nguyen; Tuyen Nguyen; Hong-Hee Lee. 2016. "A modulation strategy to eliminate CMV for matrix converters with input power factor compensation." IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society , no. : 6237-6242.
This paper proposes a three-vector modulation (TVM) scheme for a five-leg indirect matrix converter (IMC) fed a three-phase open-end load (OEL) to control both rectifier and inverter stages with zero common-mode voltage (CMV) and low output current distortion. In order to reduce the CMVs at the load terminals and to eliminate the CMV across the load phases, three nearest active vectors are selected to generate the reference output voltage. Similarly, thanks to the TVM scheme for the rectifier stage, the average value of the dc-link voltage is kept at constant, which leads to minimize the output current distortion. Additionally, the interest features of the conventional OEL systems such as higher voltage transfer ratio and better output voltage quality with three-level voltage waveform are also inherited in the cost effective topology of a five-leg IMC fed OEL. Simulation and experimental results are provided to verify the performance of the proposed TVM modulation scheme.
Quoc-Hoan Tran; Tuyen D. Nguyen; Hong-Hee Lee. Three-vector modulation scheme to improve output performance for five-leg indirect matrix converter fed open-end load. 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia) 2016, 2133 -2138.
AMA StyleQuoc-Hoan Tran, Tuyen D. Nguyen, Hong-Hee Lee. Three-vector modulation scheme to improve output performance for five-leg indirect matrix converter fed open-end load. 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia). 2016; ():2133-2138.
Chicago/Turabian StyleQuoc-Hoan Tran; Tuyen D. Nguyen; Hong-Hee Lee. 2016. "Three-vector modulation scheme to improve output performance for five-leg indirect matrix converter fed open-end load." 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia) , no. : 2133-2138.
This paper presents an investigation on carrier-based PWM method of post-fault reconfigured topology for the three-level neutral-point-clamp (3-level NPC) inverter. The operation of 3-level NPC under device failure conditions is analyzed and the proposed fault-tolerant PWM strategy is able to continuously the operation of the inverter. The proposed carrier-based method is simple without complexity calculation, the duty cycles are defined based on the comparison between the modulation signals and high frequency carrier signal. Furthermore, the balanced output currents are obtained under the imbalanced dc-link voltage condition because the modulation signals are determined based on the feedback dc-link voltage. The proposed carrier-based PWM is verified by numerical simulation and it is validated by hardware experimentation on a laboratory prototype.
Tuyen Nguyen; Nguyen Duy Tuong; Hong Hee Lee. Carrier-based PWM strategy for post-fault reconfigured 3-level NPC inverter under imbalanced dc-link voltages. 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia) 2016, 2406 -2411.
AMA StyleTuyen Nguyen, Nguyen Duy Tuong, Hong Hee Lee. Carrier-based PWM strategy for post-fault reconfigured 3-level NPC inverter under imbalanced dc-link voltages. 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia). 2016; ():2406-2411.
Chicago/Turabian StyleTuyen Nguyen; Nguyen Duy Tuong; Hong Hee Lee. 2016. "Carrier-based PWM strategy for post-fault reconfigured 3-level NPC inverter under imbalanced dc-link voltages." 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia) , no. : 2406-2411.
This paper proposes an indirect matrix converter (IMC) topology to supply a five-phase load directly from three-phase ac power sources without bulky electrolytic capacitors and explains its operating principle. Using the emerging topology, which combines the five-leg inverter into the rectifier stage of the conventional IMC, the three-to-five-phase IMC topology reduces the number of power switches and results in a simpler commutation compared with the conventional three-to-five-phase direct matrix converter. In addition, a simple approach to realize the carrier-based pulsewidth modulation (CBPWM) method for a three-to-five-phase IMC is presented, and the proposed CBPWM method is analyzed based on the space-vector approach. As a result, the IMC with the proposed CBPWM method can be more easily implemented compared with IMCs with the space-vector PWM method. A three-to-five-phase IMC control platform is realized by coordinating a TMS320F28335 DSP (Texas Instruments) with an EPM7128SLC84-15 field-programmable gate array (Altera). The simulation and experimental results are provided to verify the effectiveness of the CBPWM strategy.
Tuyen Nguyen; Hong-Hee Lee. Development of a Three-to-Five-Phase Indirect Matrix Converter With Carrier-Based PWM Based on Space-Vector Modulation Analysis. IEEE Transactions on Industrial Electronics 2015, 63, 13 -24.
AMA StyleTuyen Nguyen, Hong-Hee Lee. Development of a Three-to-Five-Phase Indirect Matrix Converter With Carrier-Based PWM Based on Space-Vector Modulation Analysis. IEEE Transactions on Industrial Electronics. 2015; 63 (1):13-24.
Chicago/Turabian StyleTuyen Nguyen; Hong-Hee Lee. 2015. "Development of a Three-to-Five-Phase Indirect Matrix Converter With Carrier-Based PWM Based on Space-Vector Modulation Analysis." IEEE Transactions on Industrial Electronics 63, no. 1: 13-24.
This paper presents a new space vector modulation (SVM) method for a three-phase five-leg indirect matrix converter (IMC) to drive a three-phase open-end winding load. The inverter stage of the new IMC topology is composed of five legs instead of the conventional six legs for the three-phase open-end winding load applications. The SVM method to drive the five-leg IMC is developed to operate the inverter stage as two independent three-phase inverters with five legs. The proposed configuration has the advantages such as sinusoidal input/output current waveforms, ability to boost voltage transfer ratio up to 1.5, and zero common-mode voltage across the open-end phase windings; its performance is not deteriorated compared to that of the six-leg inverter in spite of the reduced leg. Simulated results are presented to verify the effectiveness of the proposed topology and its SVM method.
Quoc-Hoan Tran; Tuyen D. Nguyen; Hong-Hee Lee; Nguyen T.D.. A SVM method for five-leg indirect matrix converters with open-end winding load. 2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) 2015, 934 -939.
AMA StyleQuoc-Hoan Tran, Tuyen D. Nguyen, Hong-Hee Lee, Nguyen T.D.. A SVM method for five-leg indirect matrix converters with open-end winding load. 2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia). 2015; ():934-939.
Chicago/Turabian StyleQuoc-Hoan Tran; Tuyen D. Nguyen; Hong-Hee Lee; Nguyen T.D.. 2015. "A SVM method for five-leg indirect matrix converters with open-end winding load." 2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) , no. : 934-939.
Tuyen D. Nguyen; Quoc Dung Phan; Dat Ngoc Dao; Hong-Hee Lee. Carrier Phase-Shift PWM to Reduce Common-Mode Voltage for Three-Level T-Type NPC Inverters. Journal of Power Electronics 2014, 14, 1197 -1207.
AMA StyleTuyen D. Nguyen, Quoc Dung Phan, Dat Ngoc Dao, Hong-Hee Lee. Carrier Phase-Shift PWM to Reduce Common-Mode Voltage for Three-Level T-Type NPC Inverters. Journal of Power Electronics. 2014; 14 (6):1197-1207.
Chicago/Turabian StyleTuyen D. Nguyen; Quoc Dung Phan; Dat Ngoc Dao; Hong-Hee Lee. 2014. "Carrier Phase-Shift PWM to Reduce Common-Mode Voltage for Three-Level T-Type NPC Inverters." Journal of Power Electronics 14, no. 6: 1197-1207.
This paper proposes a multilevel indirect matrix converter (IMC) topology with multilevel output voltages and its simplified carrier-based pulse-width modulation (PWM) method. This converter consists of two rectifier stages used in traditional three-phase IMC and three-level T-type voltage source inverter. Beside a proposed IMC topology, the carrier-based PWM method suitable for this converter is also introduced. Proposed EVIC topology features the advantages of conventional three-phase EVIC, such as sinusoidal input/output current waveforms, controllable input power factor and simple commutation at the rectifier stage. Furthermore, as compared to the conventional three-phase IMC, the proposed converter has the ability to synthesis the multilevel output voltages and to generate high output voltage. Analysis and simulation results are provided to verify the feasibility of the proposed IMC topology and PWM method.
Tuyen D. Nguyen; Hong-Hee Lee. Multilevel indirect matrix converter with carrier-based pulse width modulation. IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society 2014, 3318 -3323.
AMA StyleTuyen D. Nguyen, Hong-Hee Lee. Multilevel indirect matrix converter with carrier-based pulse width modulation. IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society. 2014; ():3318-3323.
Chicago/Turabian StyleTuyen D. Nguyen; Hong-Hee Lee. 2014. "Multilevel indirect matrix converter with carrier-based pulse width modulation." IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society , no. : 3318-3323.
The efficiency is the important factor for the power converter that is used in photovoltaic application. This paper proposes a new SVPWM method for three - level TNPC topology to improve the efficiency by minimize the number of switching. The proposed method is based on the virtual flux vector. By applying proper non-zero voltage vectors, a quasi circle will be created. The performance of the converter and the comparison of different modulation methods are analyzed. Simulation and experimental results show that the proposed method provides high efficiency.
Phan Quoc Dzung; Tuyen Nguyen; Tran Ha Minh Quyen; Dao Ngoc Dat; Nguyen Bao Anh; Le Chi Hiep; Hong-Hee Lee. New space vector PWM method based on virtual flux vector for T-NPC inverter. 2014 9th IEEE Conference on Industrial Electronics and Applications 2014, 1371 -1376.
AMA StylePhan Quoc Dzung, Tuyen Nguyen, Tran Ha Minh Quyen, Dao Ngoc Dat, Nguyen Bao Anh, Le Chi Hiep, Hong-Hee Lee. New space vector PWM method based on virtual flux vector for T-NPC inverter. 2014 9th IEEE Conference on Industrial Electronics and Applications. 2014; ():1371-1376.
Chicago/Turabian StylePhan Quoc Dzung; Tuyen Nguyen; Tran Ha Minh Quyen; Dao Ngoc Dat; Nguyen Bao Anh; Le Chi Hiep; Hong-Hee Lee. 2014. "New space vector PWM method based on virtual flux vector for T-NPC inverter." 2014 9th IEEE Conference on Industrial Electronics and Applications , no. : 1371-1376.
Common-mode voltage (CMV) is responsible for overvoltage stress to the winding insulation and bearing damage of an AC motor. High dv/dt of CMV causes leakage currents, which create noise problems to the equipments installed near the converter. This paper proposes modulation strategy for three-level T-type NPC that substantially eliminates CMV. The principles of selecting suitable triangle carrier signals for the T-type NPC is described. The proposed method can mitigate the peak value to 50% as compared to the conventional sinusoidal pulse width modulation method. The proposed modulation can be easily implemented in software without any additional hardware modifications. Both simulation and experimental results are shown to demonstrate that the new carrier-based PWM method can generate good performance of the output waveforms and provide CMV reduction.
Tuyen Nguyen; Quoc Dung Phan; Dao Ngoc Dat; Nguyen Huu Nhan. The carrier - based PWM method to reduce common-mode voltage for three - level T - type neutral point clamp inverter. 2014 9th IEEE Conference on Industrial Electronics and Applications 2014, 1549 -1554.
AMA StyleTuyen Nguyen, Quoc Dung Phan, Dao Ngoc Dat, Nguyen Huu Nhan. The carrier - based PWM method to reduce common-mode voltage for three - level T - type neutral point clamp inverter. 2014 9th IEEE Conference on Industrial Electronics and Applications. 2014; ():1549-1554.
Chicago/Turabian StyleTuyen Nguyen; Quoc Dung Phan; Dao Ngoc Dat; Nguyen Huu Nhan. 2014. "The carrier - based PWM method to reduce common-mode voltage for three - level T - type neutral point clamp inverter." 2014 9th IEEE Conference on Industrial Electronics and Applications , no. : 1549-1554.
This paper proposes an indirect matrix converter (IMC) topology with dual three-phase outputs and its effective carrier-based pulse width modulation (PWM) method. The proposed IMC topology can independently supply ac power for two three-phase loads from a single three-phase ac power source. This converter consists of a rectifier stage used in traditional three-phase IMC and a five-leg inverter. Besides a proposed IMC topology, the carrier-based PWM method suitable for this converter is also introduced. The proposed PWM method is easily implemented by using only one symmetrical triangular carrier signal to generate the PWM signals for a rectifier and five-leg inverter. Proposed IMC topology features the advantages of conventional three-phase IMC, such as sinusoidal input/output current waveforms, controllable input power factor, and simple commutation at the rectifier stage. Analysis, simulation, and experimental results are provided to demonstrate the advantages of the proposed IMC topology with dual three-phase outputs and to validate the effectiveness of the applied modulation strategy.
Tuyen Nguyen; Hong-Hee Lee. Dual Three-Phase Indirect Matrix Converter With Carrier-Based PWM Method. IEEE Transactions on Power Electronics 2013, 29, 569 -581.
AMA StyleTuyen Nguyen, Hong-Hee Lee. Dual Three-Phase Indirect Matrix Converter With Carrier-Based PWM Method. IEEE Transactions on Power Electronics. 2013; 29 (2):569-581.
Chicago/Turabian StyleTuyen Nguyen; Hong-Hee Lee. 2013. "Dual Three-Phase Indirect Matrix Converter With Carrier-Based PWM Method." IEEE Transactions on Power Electronics 29, no. 2: 569-581.
A new space vector modulation (SVM) process for use in an indirect matrix converter (IMC) has been proposed in this paper to reduce the common-mode voltage (CMV) in a high voltage transfer ratio. The principles of selecting suitable active vectors and then properly arranging the switching sequence in the inverter stage of the IMC are described. The IMC with the new SVM method significantly reduces the peak-to-peak voltage of the CMV without any extra hardware. The new SVM method has some other advantages such as a lower total harmonic distortion of line-to-line output voltage and a reduced switching loss at the inverter stage through a minimum number of switching commutations as compared to the conventional reduced CMV-SVM method. The proposed modulation can be easily implemented in software without any additional hardware modifications. Both simulation and experimental results are shown to demonstrate that the new SVM method can generate good performance of the input/output waveforms and provide CMV reduction.
Tuyen Nguyen; Hong-Hee Lee. A New SVM Method for an Indirect Matrix Converter With Common-Mode Voltage Reduction. IEEE Transactions on Industrial Informatics 2013, 10, 61 -72.
AMA StyleTuyen Nguyen, Hong-Hee Lee. A New SVM Method for an Indirect Matrix Converter With Common-Mode Voltage Reduction. IEEE Transactions on Industrial Informatics. 2013; 10 (1):61-72.
Chicago/Turabian StyleTuyen Nguyen; Hong-Hee Lee. 2013. "A New SVM Method for an Indirect Matrix Converter With Common-Mode Voltage Reduction." IEEE Transactions on Industrial Informatics 10, no. 1: 61-72.