This page has only limited features, please log in for full access.
This letter proposes a general decentralized control of single phase cascaded inverters-power factor angle droop control. Compared to the existing control strategies, it has the following attractive benefits: 1) it is suitable for both grid-connected and islanded modes; 2) Seamless transition between different modes can be obtained; 3) stability condition in the grid-connected mode is independent of the transmission line impedance; 4) it is suited for any types of loads in islanded modes; 5) multi-equilibrium point problem is avoided; 6) it is suitable for four quadrant operation of inverters. The small signal stability of the control is proved.
Yao Sun; Lang Li; Guangze Shi; Xiaochao Hou; Mei Su. Power Factor Angle Droop Control—A General Decentralized Control of Cascaded Inverters. IEEE Transactions on Power Delivery 2020, 36, 465 -468.
AMA StyleYao Sun, Lang Li, Guangze Shi, Xiaochao Hou, Mei Su. Power Factor Angle Droop Control—A General Decentralized Control of Cascaded Inverters. IEEE Transactions on Power Delivery. 2020; 36 (1):465-468.
Chicago/Turabian StyleYao Sun; Lang Li; Guangze Shi; Xiaochao Hou; Mei Su. 2020. "Power Factor Angle Droop Control—A General Decentralized Control of Cascaded Inverters." IEEE Transactions on Power Delivery 36, no. 1: 465-468.
This paper presents a reduced-order generalized proportional-integral observer (RGPIO) based resonant super-twisting sliding mode controller (RST-SMC) for the three-phase AC/DC converters. On the contrary to utilizing proportional-integral (PI) controller in regulating the DC-link voltage, which may cause large undershoot/overshoot under the disturbance, the proposed voltage control strategy for the DC-link has high disturbance rejection ability and the settling time has been greatly reduced. In addition, the proposed RST-SMC in the current control loop not only preserve the merits of the sliding mode controller but also achieve the current tracking without steady-state error in the stationary α-β frame. The effectiveness of the proposed method has been verified by a lab-constructed experimental prototype.
Jinghang Lu; Mehdi Savaghebi; Amer Mohammad Yusuf Mohammad Ghias; Xiaochao Hou; Josep M. Guerrero. A Reduced-Order Generalized Proportional Integral Observer-Based Resonant Super-Twisting Sliding Mode Control for Grid-Connected Power Converters. IEEE Transactions on Industrial Electronics 2020, 68, 5897 -5908.
AMA StyleJinghang Lu, Mehdi Savaghebi, Amer Mohammad Yusuf Mohammad Ghias, Xiaochao Hou, Josep M. Guerrero. A Reduced-Order Generalized Proportional Integral Observer-Based Resonant Super-Twisting Sliding Mode Control for Grid-Connected Power Converters. IEEE Transactions on Industrial Electronics. 2020; 68 (7):5897-5908.
Chicago/Turabian StyleJinghang Lu; Mehdi Savaghebi; Amer Mohammad Yusuf Mohammad Ghias; Xiaochao Hou; Josep M. Guerrero. 2020. "A Reduced-Order Generalized Proportional Integral Observer-Based Resonant Super-Twisting Sliding Mode Control for Grid-Connected Power Converters." IEEE Transactions on Industrial Electronics 68, no. 7: 5897-5908.
As unbalance state of charge (SOC) of storage units usually leads to the decrease of lifetime, SOC balancing control is essential. In this paper, a decentralized SOC balancing method is proposed to balance the SOC of cascaded-type energy storage systems. Since the method does not rely on any communication, it possesses higher reliability. As is well known, SOC is a slowly changing variable compared to other variables such as voltage and current. Thus, the studied system has obvious two-time scale characteristic. Then the stability analysis of the system based on the singular perturbation theory is carried out. Finally, the effectiveness of the proposed SOC balancing scheme is verified through both simulation and experiment tests.
Guangze Shi; Hua Han; Yao Sun; Zhangjie Liu; Minghui Zheng; Xiaochao Hou. A Decentralized SOC Balancing Method for Cascaded-Type Energy Storage Systems. IEEE Transactions on Industrial Electronics 2020, 68, 2321 -2333.
AMA StyleGuangze Shi, Hua Han, Yao Sun, Zhangjie Liu, Minghui Zheng, Xiaochao Hou. A Decentralized SOC Balancing Method for Cascaded-Type Energy Storage Systems. IEEE Transactions on Industrial Electronics. 2020; 68 (3):2321-2333.
Chicago/Turabian StyleGuangze Shi; Hua Han; Yao Sun; Zhangjie Liu; Minghui Zheng; Xiaochao Hou. 2020. "A Decentralized SOC Balancing Method for Cascaded-Type Energy Storage Systems." IEEE Transactions on Industrial Electronics 68, no. 3: 2321-2333.
Hybrid cascaded-parallel microgrid is becoming a new emerging structure to integrate multiple low-voltage power sources. This paper presents a unified distributed control strategy to implement power sharing control in hybrid cascaded-parallel microgrid with both resistive-inductive (RL) and resistive-capacitive (RC) load, where a sign function is introduced to automatically match load characteristic. Active power and reactive power regulators without frequency drop are developed, and low bandwidth communication network is employed to support power management and improve system redundancy. Furthermore, small signal model of hybrid cascaded-parallel microgrid with RL load and RC load is established. Also, small signal stability and dynamic performance of the proposed distributed control strategy is investigated. Simulation results show that the unified distributed control strategy is able to implement desirable power sharing under different load types with superior control performance. Also, the proposed control strategy is able to improve system redundancy and support plug-and-play operation of microgrid.
Wenbin Yuan; Yanbo Wang; Xiaohai Ge; Xiaochao Hou; Hua Han. A Unified Distributed Control Strategy for Hybrid Cascaded-Parallel Microgrid. IEEE Transactions on Energy Conversion 2019, 34, 2029 -2040.
AMA StyleWenbin Yuan, Yanbo Wang, Xiaohai Ge, Xiaochao Hou, Hua Han. A Unified Distributed Control Strategy for Hybrid Cascaded-Parallel Microgrid. IEEE Transactions on Energy Conversion. 2019; 34 (4):2029-2040.
Chicago/Turabian StyleWenbin Yuan; Yanbo Wang; Xiaohai Ge; Xiaochao Hou; Hua Han. 2019. "A Unified Distributed Control Strategy for Hybrid Cascaded-Parallel Microgrid." IEEE Transactions on Energy Conversion 34, no. 4: 2029-2040.
Jian Yang; Wendong Feng; Xiaochao Hou; Qingping Xia; Xin Zhang; Peng Wang. A Distributed Cooperative Control Algorithm for Optimal Power Flow and Voltage Regulation in DC Power System. IEEE Transactions on Power Delivery 2019, 35, 892 -903.
AMA StyleJian Yang, Wendong Feng, Xiaochao Hou, Qingping Xia, Xin Zhang, Peng Wang. A Distributed Cooperative Control Algorithm for Optimal Power Flow and Voltage Regulation in DC Power System. IEEE Transactions on Power Delivery. 2019; 35 (2):892-903.
Chicago/Turabian StyleJian Yang; Wendong Feng; Xiaochao Hou; Qingping Xia; Xin Zhang; Peng Wang. 2019. "A Distributed Cooperative Control Algorithm for Optimal Power Flow and Voltage Regulation in DC Power System." IEEE Transactions on Power Delivery 35, no. 2: 892-903.
Xiaochao Hou; Yao Sun; Xin Zhang; Jinghang Lu; Peng Wang; Josep M. Guerrero. Improvement of Frequency Regulation in VSG-Based AC Microgrid Via Adaptive Virtual Inertia. IEEE Transactions on Power Electronics 2019, 35, 1589 -1602.
AMA StyleXiaochao Hou, Yao Sun, Xin Zhang, Jinghang Lu, Peng Wang, Josep M. Guerrero. Improvement of Frequency Regulation in VSG-Based AC Microgrid Via Adaptive Virtual Inertia. IEEE Transactions on Power Electronics. 2019; 35 (2):1589-1602.
Chicago/Turabian StyleXiaochao Hou; Yao Sun; Xin Zhang; Jinghang Lu; Peng Wang; Josep M. Guerrero. 2019. "Improvement of Frequency Regulation in VSG-Based AC Microgrid Via Adaptive Virtual Inertia." IEEE Transactions on Power Electronics 35, no. 2: 1589-1602.
Xiaochao Hou; Yao Sun; Jinghang Lu; Xin Zhang; Leong Hai Koh; Mei Su; Josep Guerrero. Distributed Hierarchical Control of AC Microgrid Operating in Grid-Connected, Islanded and Their Transition Modes. IEEE Access 2018, 6, 77388 -77401.
AMA StyleXiaochao Hou, Yao Sun, Jinghang Lu, Xin Zhang, Leong Hai Koh, Mei Su, Josep Guerrero. Distributed Hierarchical Control of AC Microgrid Operating in Grid-Connected, Islanded and Their Transition Modes. IEEE Access. 2018; 6 ():77388-77401.
Chicago/Turabian StyleXiaochao Hou; Yao Sun; Jinghang Lu; Xin Zhang; Leong Hai Koh; Mei Su; Josep Guerrero. 2018. "Distributed Hierarchical Control of AC Microgrid Operating in Grid-Connected, Islanded and Their Transition Modes." IEEE Access 6, no. : 77388-77401.
The existing reactive power polarity-dependent decentralized control for cascaded-type microgrid (CMG) has the problem of multiple equilibrium points. As a result, some undesired operating states may occur. To address this problem, we proposes a new decentralized power sharing control scheme. The uniqueness of equilibrium point and its small signal stability are proved. Finally, the feasibility of the proposed method is verified by simulation and experiment.
Lang Li; Yao Sun; Zhangjie Liu; Xiaochao Hou; Guangze Shi; Mei Su. A Decentralized Control With Unique Equilibrium Point for Cascaded-Type Microgrid. IEEE Transactions on Sustainable Energy 2018, 10, 324 -326.
AMA StyleLang Li, Yao Sun, Zhangjie Liu, Xiaochao Hou, Guangze Shi, Mei Su. A Decentralized Control With Unique Equilibrium Point for Cascaded-Type Microgrid. IEEE Transactions on Sustainable Energy. 2018; 10 (1):324-326.
Chicago/Turabian StyleLang Li; Yao Sun; Zhangjie Liu; Xiaochao Hou; Guangze Shi; Mei Su. 2018. "A Decentralized Control With Unique Equilibrium Point for Cascaded-Type Microgrid." IEEE Transactions on Sustainable Energy 10, no. 1: 324-326.
The microgrid with cascaded H-bridge micro-converters (cascaded-type microgrid) is an effective way to integrate the distributed generators (DGs) into medium/high-voltage distribution energy system. Just like the islanded microgrid composed of paralleled inverters, achieving accuracy in power sharing and high voltage quality is a serious challenge in cascaded-type microgrid without communication. In this article, a decentralised control scheme is proposed to share the active and reactive power accurately under the resistance-inductance and resistance-capacitance loads. The power factor angle of each DG is assigned to be consistent in the steady state via regulating both the frequency and voltage. The proposed scheme can be easily implemented only based on the local measured signals. Meanwhile, excellent load voltage quality is achieved. Small-signal analysis method is performed to verify the effectiveness of the proposed scheme, and a guide for designing the power sharing coefficient is given. The cascaded-type microgrid model is developed through simulations and experiments to verify the performance of the proposed scheme.
Lang Li; Yao Sun; Hua Han; Xiaochao Hou; Mei Su; Zhangjie Liu. Power factor angle consistency control for decentralised power sharing in cascaded‐type microgrid. IET Generation, Transmission & Distribution 2018, 13, 850 -857.
AMA StyleLang Li, Yao Sun, Hua Han, Xiaochao Hou, Mei Su, Zhangjie Liu. Power factor angle consistency control for decentralised power sharing in cascaded‐type microgrid. IET Generation, Transmission & Distribution. 2018; 13 (6):850-857.
Chicago/Turabian StyleLang Li; Yao Sun; Hua Han; Xiaochao Hou; Mei Su; Zhangjie Liu. 2018. "Power factor angle consistency control for decentralised power sharing in cascaded‐type microgrid." IET Generation, Transmission & Distribution 13, no. 6: 850-857.
This paper presents a series‐parallel photovoltaic (PV)‐storage independent microgrid (MG), where low‐voltage distributed generation units could be connected to power grid conveniently. Moreover, it provides a promising way to form medium voltage MG. For this proposed structure, a decentralized control is proposed. The PV units are controlled by a maximum power point tracking (MPPT)‐based droop control, where MPPT of the PV units is achieved. Storage units are regulated via a “droop” controller dependent its reactive power polarity and take the responsibility of keeping the power supply‐demand balance of the MG. Since all these controllers make decisions only based on their local information, the proposed control is reliable and cost‐effective. Moreover, the small‐signal stability of the system is proved. And simulation results are presented to verify the effectiveness.
Lang Li; Yao Sun; Zhangjie Liu; Xufeng Yuan; Mei Su; Xiaochao Hou; Minghui Zheng. A series-parallel PV-storage independent microgrid and its decentralized control. International Transactions on Electrical Energy Systems 2018, 29, e2715 .
AMA StyleLang Li, Yao Sun, Zhangjie Liu, Xufeng Yuan, Mei Su, Xiaochao Hou, Minghui Zheng. A series-parallel PV-storage independent microgrid and its decentralized control. International Transactions on Electrical Energy Systems. 2018; 29 (2):e2715.
Chicago/Turabian StyleLang Li; Yao Sun; Zhangjie Liu; Xufeng Yuan; Mei Su; Xiaochao Hou; Minghui Zheng. 2018. "A series-parallel PV-storage independent microgrid and its decentralized control." International Transactions on Electrical Energy Systems 29, no. 2: e2715.
For an AC-stacked photovoltaic (PV) inverter system with N cascaded inverters, existing control methods require at least N communication links to acquire the grid synchronization signal. In this paper, a novel decentralized control is proposed. For N inverters, only one inverter nearest the point of common coupling (PCC) needs a communication link to acquire the grid voltage phase and all other N − 1 inverters use only local measured information to achieved fully decentralized local control. Specifically, one inverter with a communication link utilizes the grid voltage phase and adopts current control mode to achieve a required power factor (PF). All other inverters need only local information without communication links and adopt voltage control mode to achieve maximum power point tracking (MPPT) and self-synchronization with grid voltage. Compared with existing methods, the communication link and complexity is greatly reduced, thus improved reliability and reduced communication costs are achieved. The effectiveness of the proposed control is verified by simulation tests.
Hua Han; Chao Luo; Xiaochao Hou; Mei Su; Wenbin Yuan; Zhangjie Liu; Josep M. Guerrero. A Cost-Effective Decentralized Control for AC-Stacked Photovoltaic Inverters. Energies 2018, 11, 2262 .
AMA StyleHua Han, Chao Luo, Xiaochao Hou, Mei Su, Wenbin Yuan, Zhangjie Liu, Josep M. Guerrero. A Cost-Effective Decentralized Control for AC-Stacked Photovoltaic Inverters. Energies. 2018; 11 (9):2262.
Chicago/Turabian StyleHua Han; Chao Luo; Xiaochao Hou; Mei Su; Wenbin Yuan; Zhangjie Liu; Josep M. Guerrero. 2018. "A Cost-Effective Decentralized Control for AC-Stacked Photovoltaic Inverters." Energies 11, no. 9: 2262.
This letter presents a general decentralized control scheme for cascaded H-bridge inverter-based static compensators (STATCOM) in medium/high voltage (MV/HV) power network. The H-bridge modules are controlled in a decentralized manner without a central controller, and each module makes decisions based on individual local controller. The local controller includes two parts: 1) a Q-ω boost control is introduced to share reactive power equally, and 2) a scalable P-V control is established for balancing DC-link voltage of inverters. The proposed scheme can achieve frequency synchronization autonomously, and thus has advantages of improved reliability, scalability and decreased costs. Moreover, an improved decentralized control is also proposed to adapt the grid-side dynamics when contingencies will occur. The system stability conditions are derived, and the feasibility of the proposed method is verified by simulation results.
Xiaochao Hou; Yao Sun; Hua Han; Zhangjie Liu; Mei Su; Benfei Wang; Xin Zhang. A General Decentralized Control Scheme for Medium-/High-Voltage Cascaded STATCOM. IEEE Transactions on Power Systems 2018, 33, 7296 -7300.
AMA StyleXiaochao Hou, Yao Sun, Hua Han, Zhangjie Liu, Mei Su, Benfei Wang, Xin Zhang. A General Decentralized Control Scheme for Medium-/High-Voltage Cascaded STATCOM. IEEE Transactions on Power Systems. 2018; 33 (6):7296-7300.
Chicago/Turabian StyleXiaochao Hou; Yao Sun; Hua Han; Zhangjie Liu; Mei Su; Benfei Wang; Xin Zhang. 2018. "A General Decentralized Control Scheme for Medium-/High-Voltage Cascaded STATCOM." IEEE Transactions on Power Systems 33, no. 6: 7296-7300.
This paper proposes a communication-free decentralized control for grid-connected cascaded PV inverter systems. The cascaded PV inverter system is an AC-stacked architecture, which promotes the integration of low voltage (LV) distributed photovoltaic (PV) generators into the medium/high voltage (MV/HV) power grid. The proposed decentralized control is fully free of communication links and phase-locked loop (PLL). All cascaded inverters are controlled as current controlled voltage sources locally and independently to achieve maximum power point tracking (MPPT) and frequency self-synchronization with the power grid. As a result, control complexity as well as communication costs are reduced, and the system’s reliability is greatly enhanced compared with existing communication-based methods. System stability and dynamic performance are evaluated by small-signal analysis to guide the design of system parameters. The feasibility and effectiveness of the proposed solution are verified by simulation tests.
Mei Su; Chao Luo; Xiaochao Hou; Wenbin Yuan; Zhangjie Liu; Hua Han; Josep M. Guerrero. A Communication-Free Decentralized Control for Grid-Connected Cascaded PV Inverters. Energies 2018, 11, 1375 .
AMA StyleMei Su, Chao Luo, Xiaochao Hou, Wenbin Yuan, Zhangjie Liu, Hua Han, Josep M. Guerrero. A Communication-Free Decentralized Control for Grid-Connected Cascaded PV Inverters. Energies. 2018; 11 (6):1375.
Chicago/Turabian StyleMei Su; Chao Luo; Xiaochao Hou; Wenbin Yuan; Zhangjie Liu; Hua Han; Josep M. Guerrero. 2018. "A Communication-Free Decentralized Control for Grid-Connected Cascaded PV Inverters." Energies 11, no. 6: 1375.
To facilitate the integration of low voltage photovoltaic (PV) generators into the grid and achieve high efficiency, this paper presents a grid-connected cascaded single-stage PV inverter system and a fully decentralized power control is proposed accordingly. In this system configuration, input port of each single-stage PV inverter is tied directly to its local PV panels and their output ports are connected in series to be integrated into the utility grid. Thus, a high step-up conversion stage is not needed and high efficiency as well as reduced cost are realized. The proposed decentralized power control requires no communication facilities and thus features high reliability. With the proposed control, each cascaded inverter is controlled as a voltage source independently and locally to realize maximum power point tracking (MPPT) and frequency synchronization with the utility grid autonomously without a phase-locked loop (PLL), which ensures supplying the maximum active power available to the utility grid. The system stability is evaluated by small-signal stability analysis. Simulation test verifies the effectiveness and correctness of the proposed control.
Chao Luo; Mei Su; Xiaochao Hou; Hua Han; Yao Sun; Yunfan Yang. A Decentralized Power Control of Cascaded Single-Stage PV Inverters for Grid-connected Applications. 2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) 2018, 622 -627.
AMA StyleChao Luo, Mei Su, Xiaochao Hou, Hua Han, Yao Sun, Yunfan Yang. A Decentralized Power Control of Cascaded Single-Stage PV Inverters for Grid-connected Applications. 2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia). 2018; ():622-627.
Chicago/Turabian StyleChao Luo; Mei Su; Xiaochao Hou; Hua Han; Yao Sun; Yunfan Yang. 2018. "A Decentralized Power Control of Cascaded Single-Stage PV Inverters for Grid-connected Applications." 2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) , no. : 622-627.
Jian Yang; Wenbin Yuan; Yao Sun; Hua Han; Xiaochao Hou; Josep Guerrero. A novel quasi-master-slave control frame for PV-storage independent microgrid. International Journal of Electrical Power & Energy Systems 2018, 97, 262 -274.
AMA StyleJian Yang, Wenbin Yuan, Yao Sun, Hua Han, Xiaochao Hou, Josep Guerrero. A novel quasi-master-slave control frame for PV-storage independent microgrid. International Journal of Electrical Power & Energy Systems. 2018; 97 ():262-274.
Chicago/Turabian StyleJian Yang; Wenbin Yuan; Yao Sun; Hua Han; Xiaochao Hou; Josep Guerrero. 2018. "A novel quasi-master-slave control frame for PV-storage independent microgrid." International Journal of Electrical Power & Energy Systems 97, no. : 262-274.
Constant power loads (CPLs) often cause instability due to its negative impedance characteristics. In this study, the stability of a DC microgrid with CPLs under a distributed control that aims at current sharing and voltage recovery is analyzed. The effect of the negative impedance on the behavior of distributed controller is investigated. The small-signal model is established to predict the system qualitative behavior around equilibrium. The stability conditions of the system with time delay are derived based on the equivalent linearized model. Additionally, eigenvalue analysis based on inertia theorem provides analytical sufficient conditions as a function of the system parameters, and thus it leads to a design guideline to build reliable microgrids. Simulations are performed to confirm the effectiveness and validity of the proposed method.
Zhangjie Liu; Mei Su; Yao Sun; Hua Han; Xiaochao Hou; Josep Guerrero. Stability analysis of DC microgrids with constant power load under distributed control methods. Automatica 2018, 90, 62 -72.
AMA StyleZhangjie Liu, Mei Su, Yao Sun, Hua Han, Xiaochao Hou, Josep Guerrero. Stability analysis of DC microgrids with constant power load under distributed control methods. Automatica. 2018; 90 ():62-72.
Chicago/Turabian StyleZhangjie Liu; Mei Su; Yao Sun; Hua Han; Xiaochao Hou; Josep Guerrero. 2018. "Stability analysis of DC microgrids with constant power load under distributed control methods." Automatica 90, no. : 62-72.
This letter proposes a decentralized power balance control for grid-connected cascaded modular inverters without any communication, and each module makes decisions based on its own local information. In contrast, the conventional methods are usually centralized control and depend on a real-time communication. Thus, the proposed scheme has advantages of improved reliability and decreased costs. The overall system stability is analyzed, and the stability condition is derived as well. The feasibility of the proposed method is verified by simulation.
Xiaochao Hou; Yao Sun; Hua Han; Zhangjie Liu; Wenbin Yuan; Mei Su. A fully decentralized control of grid-connected cascaded inverters. IEEE Transactions on Sustainable Energy 2018, 10, 315 -317.
AMA StyleXiaochao Hou, Yao Sun, Hua Han, Zhangjie Liu, Wenbin Yuan, Mei Su. A fully decentralized control of grid-connected cascaded inverters. IEEE Transactions on Sustainable Energy. 2018; 10 (1):315-317.
Chicago/Turabian StyleXiaochao Hou; Yao Sun; Hua Han; Zhangjie Liu; Wenbin Yuan; Mei Su. 2018. "A fully decentralized control of grid-connected cascaded inverters." IEEE Transactions on Sustainable Energy 10, no. 1: 315-317.
This paper proposes a novel universal control for multi-bus AC microgrid with the capability to operate in both grid-connected (GC) and islanded (IS) modes. The control scheme is based on distributed manner, and the leader-follower consensus protocol is designed. Only few leader distributed generators (DGs) receive the correction signals from the unified mode controller, which is installed at the point of common coupling (PCC). The rest follower DGs would track the leader DGs, and exchange information with their neighbors. Under this control framework, the active and reactive power can be flexibly controlled to inject into the grid in GC mode. Meanwhile, the voltage/frequency support and active/reactive power sharing are guaranteed in IS mode. Moreover, the proposed method is able to offer seamless transition between GC and IS modes. Finally, simulations are presented to verify the satisfied transition process of different modes.
Xiaochao Hou; Hua Han; Chaolu Zhong; Wenbin Yuan; Yao Sun; Mei Su. A unified distributed control for grid-connected and islanded modes in multi-bus AC microgrid. IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society 2017, 2377 -2382.
AMA StyleXiaochao Hou, Hua Han, Chaolu Zhong, Wenbin Yuan, Yao Sun, Mei Su. A unified distributed control for grid-connected and islanded modes in multi-bus AC microgrid. IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society. 2017; ():2377-2382.
Chicago/Turabian StyleXiaochao Hou; Hua Han; Chaolu Zhong; Wenbin Yuan; Yao Sun; Mei Su. 2017. "A unified distributed control for grid-connected and islanded modes in multi-bus AC microgrid." IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society , no. : 2377-2382.
In cascaded-type microgrid, the synchronization and power sharing of distributed generators (DGs) become two new issues that needs to be addressed urgently. In this paper, a unified droop control is proposed and its stability is analyzed in the islanded mode. The proposed scheme can ensure the system stability and accurate power sharing without communication in four-quadrant operations. Finally, simulation and experimental results are presented to verify the system effectiveness. Furthermore, the application of droop control in grid-connected mode would be researched in our future work. The preliminary simulation results are presented in this paper.
Wenbin Yuan; Jian Yang; Guangze Shi; Yao Sun; Hua Han; Xiaochao Hou. Control design and stability analysis for the cascaded-type AC microgrid. IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society 2017, 2407 -2412.
AMA StyleWenbin Yuan, Jian Yang, Guangze Shi, Yao Sun, Hua Han, Xiaochao Hou. Control design and stability analysis for the cascaded-type AC microgrid. IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society. 2017; ():2407-2412.
Chicago/Turabian StyleWenbin Yuan; Jian Yang; Guangze Shi; Yao Sun; Hua Han; Xiaochao Hou. 2017. "Control design and stability analysis for the cascaded-type AC microgrid." IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society , no. : 2407-2412.
Although the wireless power transfer (WPT) has been used in a wide range of areas, there are many difficulties with the development of WPT. The load voltage quality problem caused by the high susceptibility of the delivered power to the surrounding is still a key issue to be solved. To guarantee a high quality of dc load voltage in WPT system, this paper proposes a novel voltage control strategy based on DC electric spring(DCES). The DCES is controlled to generate a dc voltage to regulate the voltage of critical loads while passing the fluctuating voltage to the non-critical loads. The operating principle and control strategy are analyzed in detail. To verify the effectiveness of the proposed technology in WPT system, simulations are carried out based on MATLAB/SIMULINK.
Zhu Mao; Hua Han; Yao Sun; Mei Su; Qi Zhu; Xiaochao Hou. A novel DCES based voltage control stragety for critical load supplied by wireless power. 2017 Chinese Automation Congress (CAC) 2017, 6829 -6834.
AMA StyleZhu Mao, Hua Han, Yao Sun, Mei Su, Qi Zhu, Xiaochao Hou. A novel DCES based voltage control stragety for critical load supplied by wireless power. 2017 Chinese Automation Congress (CAC). 2017; ():6829-6834.
Chicago/Turabian StyleZhu Mao; Hua Han; Yao Sun; Mei Su; Qi Zhu; Xiaochao Hou. 2017. "A novel DCES based voltage control stragety for critical load supplied by wireless power." 2017 Chinese Automation Congress (CAC) , no. : 6829-6834.