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This study sought to understand the behaviors and attitudes of people in Taiwan as they relate to the government’s RE policies by analyzing data from a questionnaire-based telephone survey conducted between 2013 and 2015. Demographic attributes in people’s behavioral models were analyzed for two variables: attention and support. Based on the findings, people’s behavioral models relating to RE were classified into five categories: key promotional group, promotional seed group, support-strengthening group, attention-strengthening group, and non-key promotional group. The attributes of these five segments were also analyzed and their corresponding promotional strategies were formulated. The overarching goal was to improve precision in marketing RE policies to various target groups in order to maximize impact.
Cheng-Chih Chou; Liang-Rui Chen. An Analysis of Behavioral Models Relating to Renewable Energy in Taiwan. Sustainability 2021, 13, 7296 .
AMA StyleCheng-Chih Chou, Liang-Rui Chen. An Analysis of Behavioral Models Relating to Renewable Energy in Taiwan. Sustainability. 2021; 13 (13):7296.
Chicago/Turabian StyleCheng-Chih Chou; Liang-Rui Chen. 2021. "An Analysis of Behavioral Models Relating to Renewable Energy in Taiwan." Sustainability 13, no. 13: 7296.
The objective of this paper is to propose an active ripple filter (ARF) using the patented DC-side direct current control for eliminating the double-line-frequency current ripple in a single-phase DC/AC conversion system. The proposed ARF and its control strategies can not only prolong the usage life of the DC energy source but also improve the DC/AC system performance. At first, the phenomena of double-line-frequency current ripple and the operation principle of the ARF are illustrated. Then, steady-state analysis, small-signal model, and control loop design of the ARF architecture are derived. The proposed control system includes: (1) a DC current control loop to provide the excellent ripple eliminating performance on the output of the DC energy source; (2) a voltage control loop for the high-side DC-bus voltage of the ARF to achieve good steady-state and transient-state responses; (3) a voltage feedforward loop for the low-side voltage of the ARF to cancel the voltage fluctuation caused by the instability of the DC energy source. Finally, the feasibility of the proposed concept can be verified by the system simulation, and the experimental results show that the nearly zero double-line-frequency current ripple on the DC-side in a single-phase DC/AC conversion system can be achieved.
Ying-Chieh Chen; Liang-Rui Chen; Ching-Ming Lai; Yuan-Chih Lin; Ting-Jung Kuo. Development of a DC-Side Direct Current Controlled Active Ripple Filter for Eliminating the Double-Line-Frequency Current Ripple in a Single-Phase DC/AC Conversion System. Energies 2020, 13, 4772 .
AMA StyleYing-Chieh Chen, Liang-Rui Chen, Ching-Ming Lai, Yuan-Chih Lin, Ting-Jung Kuo. Development of a DC-Side Direct Current Controlled Active Ripple Filter for Eliminating the Double-Line-Frequency Current Ripple in a Single-Phase DC/AC Conversion System. Energies. 2020; 13 (18):4772.
Chicago/Turabian StyleYing-Chieh Chen; Liang-Rui Chen; Ching-Ming Lai; Yuan-Chih Lin; Ting-Jung Kuo. 2020. "Development of a DC-Side Direct Current Controlled Active Ripple Filter for Eliminating the Double-Line-Frequency Current Ripple in a Single-Phase DC/AC Conversion System." Energies 13, no. 18: 4772.
Genetic algorithm (GA), a global search method, has widespread applications in various fields. One very promising variant model of GA is the island model GA (IMGA) that introduces the key idea of migration to explore a wider search space. Migration will exchange chromosomes between islands, resulting in better-quality solutions. However, IMGA takes a long time to solve the large-scale NP-hard problems. In order to shorten the computation time, modern graphic process unit (GPU), as highly-parallel architecture, has been widely adopted in order to accelerate the execution of NP-hard algorithms. However, most previous studies on GPUs are focused on performance only, because the found solution qualities of the CPU and the GPU implementation of the same method are exactly the same. Therefore, it is usually previous work that did not report on quality. In this paper, we investigate how to find a better solution within a reasonable time when parallelizing IMGA on GPU, and we take the UA-FLP as a study example. Firstly, we propose an efficient approach of parallel tournament selection operator on GPU to achieve a better solution quality in a shorter amount of time. Secondly, we focus on how to tune three important parameters of IMGA to obtain a better solution efficiently, including the number of islands, the number of generations, and the number of chromosomes. In particular, different parameters have a different impact on solution quality improvement and execution time increment. We address the challenge of how to trade off between solution quality and execution time for these parameters. Finally, experiments and statistics are conducted to help researchers set parameters more efficiently to obtain better solutions when GPUs are used to accelerate IMGA. It has been observed that the order of influence on solution quality is: The number of chromosomes, the number of generations, and the number of islands, which can guide users to obtain better solutions efficiently with moderate increment of execution time. Furthermore, if we give higher priority on reducing execution time on GPU, the quality of the best solution can be improved by about 3%, with an acceleration that is 29 times faster than the CPU counterpart, after applying our suggested parameter settings. However, if we give solution quality a higher priority, i.e., the GPU execution time is close to the CPU’s, the solution quality can be improved up to 8%.
Xue Sun; Ping Chou; Chao-Chin Wu; Liang-Rui Chen. Quality-Oriented Study on Mapping Island Model Genetic Algorithm onto CUDA GPU. Symmetry 2019, 11, 318 .
AMA StyleXue Sun, Ping Chou, Chao-Chin Wu, Liang-Rui Chen. Quality-Oriented Study on Mapping Island Model Genetic Algorithm onto CUDA GPU. Symmetry. 2019; 11 (3):318.
Chicago/Turabian StyleXue Sun; Ping Chou; Chao-Chin Wu; Liang-Rui Chen. 2019. "Quality-Oriented Study on Mapping Island Model Genetic Algorithm onto CUDA GPU." Symmetry 11, no. 3: 318.
This article describes how as one of the hot parallel processors, the general-purpose graphics processing unit (GPU) has been widely adopted to accelerate various time-consuming algorithms. Dynamic programming (DP) optimization is a popular method to solve a particular class of complex problems. This article focuses on serial-monadic DP problems onto NVIDIA GPUs. As 0/1 knapsack is one of the most representational problems in this category and it often arises in many other fields of applications. The previous work proposed the compression method to reduce the amount of data transferred, but data in shared memory cannot be reused. This article demonstrates how to apply a more condensed data structure and the inter-block synchronization to efficiently map the serial-monadic DP onto GPUs. Computational experiments reveal that the best performance improvement of the approach is about 100% comparing with the previous work.
Xue Sun; Chao-Chin Wu; Liang-Rui Chen; Jian-You Lin. Using Inter-Block Synchronization to Improve the Knapsack Problem on GPUs. International Journal of Grid and High Performance Computing 2018, 10, 83 -98.
AMA StyleXue Sun, Chao-Chin Wu, Liang-Rui Chen, Jian-You Lin. Using Inter-Block Synchronization to Improve the Knapsack Problem on GPUs. International Journal of Grid and High Performance Computing. 2018; 10 (4):83-98.
Chicago/Turabian StyleXue Sun; Chao-Chin Wu; Liang-Rui Chen; Jian-You Lin. 2018. "Using Inter-Block Synchronization to Improve the Knapsack Problem on GPUs." International Journal of Grid and High Performance Computing 10, no. 4: 83-98.
Facility layout problem (FLP) is one of the hottest research areas in industrial engineering. A good facility layout can achieve efficient production management, improve production efficiency, and create high economic values. Because FLP is an NP-hard problem, meaning it is impossible to find the optimal solution when problem becomes sufficiently large, various evolutionary algorithms (EAs) have been proposed to find a sub-optimal solution within a reasonable time interval. Recently, a genetic algorithm (GA) was proposed for unequal area FLP (UA-FLP), where the areas of facilities are not identical. More precisely, the GA is an island model based, which is called IMGA. Since EAs are still very time consuming, many efforts have been devoted to how to parallelize various EAs including IMGA. In recent work, Steffen and Dietmar proposed how to parallelize island models of EAs. However, their parallelization approaches are preliminary because they focused mainly on comparing the performances between different parallel architectures. In addition, they used one mathematical function to model the problem. To further investigate on how to parallelize the IMGA by GPU, in this paper we propose multiple parallel algorithms, for each individual step in the IMGA when solving the industrial engineering problem, UA-FLP, and conduct experiments to compare their performances. After integrating better algorithms for all steps into the IMGA, our GPU implementation outperforms the CPU counterpart and the best speedup can be as high as 84.
Xue Sun; Lien-Fu Lai; Ping Chou; Liang-Rui Chen; Chao-Chin Wu. On GPU Implementation of the Island Model Genetic Algorithm for Solving the Unequal Area Facility Layout Problem. Applied Sciences 2018, 8, 1604 .
AMA StyleXue Sun, Lien-Fu Lai, Ping Chou, Liang-Rui Chen, Chao-Chin Wu. On GPU Implementation of the Island Model Genetic Algorithm for Solving the Unequal Area Facility Layout Problem. Applied Sciences. 2018; 8 (9):1604.
Chicago/Turabian StyleXue Sun; Lien-Fu Lai; Ping Chou; Liang-Rui Chen; Chao-Chin Wu. 2018. "On GPU Implementation of the Island Model Genetic Algorithm for Solving the Unequal Area Facility Layout Problem." Applied Sciences 8, no. 9: 1604.
Electricity plays a crucial role in the well-being of humans and is a determining factor of the economic development of a country. Electricity issues have encouraged researchers to focus on improving power availability and quality along with reliability. This pursuit has increasingly raised the intention to integrate renewable energy (RE) into power systems to curb the problem of energy deficiency. However, intermittency in the sources of RE supply coupled with fluctuating changes in demand with respect to time has induced high risk in maintaining system reliability in terms of providing adequate supply to consumers. Whilst an energy storage system (ESS) is not another source of electricity, it is proven to be effective and viable in solving the aforementioned issues. Thus, this paper comprehensively reviews the development of ESS technologies and discusses the benefits and real-life applications of these technologies. The concept of reliability in power systems is also explored to provide an improved understanding of this study. Lastly, notable studies that have addressed the reliability impact of ESSs on power systems are discussed. This review paper therefore is expected to provide a critical analysis of ESS developments, as well as recognize their research gaps in terms of reliability studies in modern RE-integrated power networks.
Farihan Mohamad; Jiashen Teh; Ching-Ming Lai; Liang-Rui Chen. Development of Energy Storage Systems for Power Network Reliability: A Review. Energies 2018, 11, 2278 .
AMA StyleFarihan Mohamad, Jiashen Teh, Ching-Ming Lai, Liang-Rui Chen. Development of Energy Storage Systems for Power Network Reliability: A Review. Energies. 2018; 11 (9):2278.
Chicago/Turabian StyleFarihan Mohamad; Jiashen Teh; Ching-Ming Lai; Liang-Rui Chen. 2018. "Development of Energy Storage Systems for Power Network Reliability: A Review." Energies 11, no. 9: 2278.
In order to promote logistics system for manufacturing plant, this paper proposed a new design for the logistics system of a rope manufacturing plant. Through the analysis in the aspects of workshop facility layout, material handling and inventory management, the original logistics system of the plant is optimized. According to the comparison of the simulation results between original and optimized design, the optimized model has the higher productive efficiency. This can provide the references for the other manufacturing plant in analysis and design of the logistics system to improve plant efficiency.
Xue Sun; Chao-Chin Wu; Liang-Rui Chen. Analysis and Design of the Logistics System for Rope Manufacturing Plant. MATEC Web of Conferences 2017, 139, 00111 .
AMA StyleXue Sun, Chao-Chin Wu, Liang-Rui Chen. Analysis and Design of the Logistics System for Rope Manufacturing Plant. MATEC Web of Conferences. 2017; 139 ():00111.
Chicago/Turabian StyleXue Sun; Chao-Chin Wu; Liang-Rui Chen. 2017. "Analysis and Design of the Logistics System for Rope Manufacturing Plant." MATEC Web of Conferences 139, no. : 00111.
Liang-Rui Chen; Yung-Shun Lin; Chia-Hsuan Wu; Jonq-Chin Hwang; Chuan-Sheng Liu. Controllable Magnetic Brake for wind turbines. Applied System Innovation 2016, 365 -369.
AMA StyleLiang-Rui Chen, Yung-Shun Lin, Chia-Hsuan Wu, Jonq-Chin Hwang, Chuan-Sheng Liu. Controllable Magnetic Brake for wind turbines. Applied System Innovation. 2016; ():365-369.
Chicago/Turabian StyleLiang-Rui Chen; Yung-Shun Lin; Chia-Hsuan Wu; Jonq-Chin Hwang; Chuan-Sheng Liu. 2016. "Controllable Magnetic Brake for wind turbines." Applied System Innovation , no. : 365-369.
In this paper, the ac impedance analysis is used to explore the optimal discharging frequency for a Li-ion battery. Experiments indicate that the optimal discharging frequency is at the minimum ac impedance frequency fZmin for a conventional pulse-current (PC) discharging. In addition, a sinusoidal current (SC) discharging strategy is also proposed to achieve better performances. This SC discharging strategy improves the discharging capacity, discharging efficiency, and rising temperature of the Li-ion battery by about 1.3%, 1.32%, and 41.9%, respectively, as compared with the traditional constant-current discharging.
Liang-Rui Chen; Jin-Jia Chen; Chun-Min Ho; Shing-Lih Wu; Deng-Tswen Shieh. Improvement of Li-ion Battery Discharging Performance by Pulse and Sinusoidal Current Strategies. IEEE Transactions on Industrial Electronics 2012, 60, 5620 -5628.
AMA StyleLiang-Rui Chen, Jin-Jia Chen, Chun-Min Ho, Shing-Lih Wu, Deng-Tswen Shieh. Improvement of Li-ion Battery Discharging Performance by Pulse and Sinusoidal Current Strategies. IEEE Transactions on Industrial Electronics. 2012; 60 (12):5620-5628.
Chicago/Turabian StyleLiang-Rui Chen; Jin-Jia Chen; Chun-Min Ho; Shing-Lih Wu; Deng-Tswen Shieh. 2012. "Improvement of Li-ion Battery Discharging Performance by Pulse and Sinusoidal Current Strategies." IEEE Transactions on Industrial Electronics 60, no. 12: 5620-5628.
In this paper, an instantaneous maximum power point tracking (MPPT) control is first adopted to achieve fast tracking response for the photovoltaic (PV) power generation system. Then an instantaneous real power tracking control is proposed to overcome the dilemma of the inherent double line frequency ripple without adding an additional circuit so that one can replace the large electrolytic capacitor with small bipolar film-type capacitors to achieve longer lifetime of the single-phase grid-tied inverter. Furthermore, the mathematical model of the PV system is derived and the minimum capacitance for a specified allowable DC-link capacitor voltage swing is obtained. Finally, simulation results are given for verifying the feasibility of the proposed control strategy.
Ching-Ming Lai; Yi-Hung Liao; Liang-Rui Chen. Development of an instantaneous real power tracking control scheme for a single-phase grid-tied photovoltaic inverter with minimum DC-Link capacitance. 2012 IEEE International Symposium on Industrial Electronics 2012, 1 .
AMA StyleChing-Ming Lai, Yi-Hung Liao, Liang-Rui Chen. Development of an instantaneous real power tracking control scheme for a single-phase grid-tied photovoltaic inverter with minimum DC-Link capacitance. 2012 IEEE International Symposium on Industrial Electronics. 2012; ():1.
Chicago/Turabian StyleChing-Ming Lai; Yi-Hung Liao; Liang-Rui Chen. 2012. "Development of an instantaneous real power tracking control scheme for a single-phase grid-tied photovoltaic inverter with minimum DC-Link capacitance." 2012 IEEE International Symposium on Industrial Electronics , no. : 1.
This paper proposed a novel inductive coupling power transfer (ICPT) topology to improve the power factor, output voltage regulation and efficiency. The proposed ICPT is mainly constructed by a voltage controllable power factor corrector (VC-PFC) and a LLC resonant circuit. Additionally, the series compensation and series-parallel compensation are used in the primary and the secondary sides of the coupling transformer to increase the coupling efficiency and the load range. Finally, the circuit simulation of the proposed ICPT is presented to verify the performance. Simulation results show that under the 10 mm coupling distance, the power factor correction and output voltage regulation can be achieved at the same time.
Liang-Rui Chen; Hai-Wen Chang; Chia-Hsuan Wu; Chung-Ming Young; Neng-Yi Chu. Voltage controllable power factor corrector based inductive coupling power transfer system. 2012 IEEE International Symposium on Industrial Electronics 2012, 1 .
AMA StyleLiang-Rui Chen, Hai-Wen Chang, Chia-Hsuan Wu, Chung-Ming Young, Neng-Yi Chu. Voltage controllable power factor corrector based inductive coupling power transfer system. 2012 IEEE International Symposium on Industrial Electronics. 2012; ():1.
Chicago/Turabian StyleLiang-Rui Chen; Hai-Wen Chang; Chia-Hsuan Wu; Chung-Ming Young; Neng-Yi Chu. 2012. "Voltage controllable power factor corrector based inductive coupling power transfer system." 2012 IEEE International Symposium on Industrial Electronics , no. : 1.
In this paper, a single-phase multilevel inverter with battery balancing is proposed. The input of each individual inverter is directly connected to a battery. The combination of batteries can be controlled according to the batteries' voltages to implement the battery-balancing function. The operational principle of the proposed system is first described, and then, the design equation is derived. Experiments show that the battery-balancing discharge function is achieved. Finally, a prototype is designed and implemented to verify the feasibility and excellent performance.
Chung-Ming Young; Neng-Yi Chu; Liang-Rui Chen; Yu-Chih Hsiao; Chia-Zer Li. A Single-Phase Multilevel Inverter With Battery Balancing. IEEE Transactions on Industrial Electronics 2012, 60, 1972 -1978.
AMA StyleChung-Ming Young, Neng-Yi Chu, Liang-Rui Chen, Yu-Chih Hsiao, Chia-Zer Li. A Single-Phase Multilevel Inverter With Battery Balancing. IEEE Transactions on Industrial Electronics. 2012; 60 (5):1972-1978.
Chicago/Turabian StyleChung-Ming Young; Neng-Yi Chu; Liang-Rui Chen; Yu-Chih Hsiao; Chia-Zer Li. 2012. "A Single-Phase Multilevel Inverter With Battery Balancing." IEEE Transactions on Industrial Electronics 60, no. 5: 1972-1978.
In this paper, the sinusoidal-ripple-current (SRC) charging strategy for a Li-ion battery is proposed. The ac-impedance analysis is used to explore the optimal charging frequency. Experiments indicate that the optimal charging performance can be achieved by the proposed SRC with the minimum-ac-impedance frequency fZmin. Compared with the conventional constant-current constant-voltage charging strategy, the charging time, the charging efficiency, the maximum rising temperature, and the lifetime of the Li-ion battery are improved by about 17%, 1.9%, 45.8%, and 16.1%, respectively.
Liang-Rui Chen; Shing-Lih Wu; Deng-Tswen Shieh; Tsair-Rong Chen. Sinusoidal-Ripple-Current Charging Strategy and Optimal Charging Frequency Study for Li-Ion Batteries. IEEE Transactions on Industrial Electronics 2012, 60, 88 -97.
AMA StyleLiang-Rui Chen, Shing-Lih Wu, Deng-Tswen Shieh, Tsair-Rong Chen. Sinusoidal-Ripple-Current Charging Strategy and Optimal Charging Frequency Study for Li-Ion Batteries. IEEE Transactions on Industrial Electronics. 2012; 60 (1):88-97.
Chicago/Turabian StyleLiang-Rui Chen; Shing-Lih Wu; Deng-Tswen Shieh; Tsair-Rong Chen. 2012. "Sinusoidal-Ripple-Current Charging Strategy and Optimal Charging Frequency Study for Li-Ion Batteries." IEEE Transactions on Industrial Electronics 60, no. 1: 88-97.
In this paper, a phase-locked bidirectional converter (BC) (PLBC) with pulse charge function is proposed to improve the battery charge efficiency. The circuit topology of the proposed PLBC is the same as that of the current-pump phase-locked loop (CP-PLL). Using CP-PLL inherent characteristics, a pulse current with bidirectional flow can be automatically implemented. A design example for a 42-V/14-V dual-voltage PowerNet is built to assess the PLBC's performance. Compared with the conventional BC, the battery charge efficiency η b is improved by about 2.8%. Moreover, the battery increased temperature is reduced by about 5.7 ° C simultaneously.
Liang-Rui Chen; Chung-Ming Young; Neng-Yi Chu; Chuan-Sheng Liu. Phase-Locked Bidirectional Converter With Pulse Charge Function for 42-V/14-V Dual-Voltage PowerNet. IEEE Transactions on Industrial Electronics 2010, 58, 2045 -2048.
AMA StyleLiang-Rui Chen, Chung-Ming Young, Neng-Yi Chu, Chuan-Sheng Liu. Phase-Locked Bidirectional Converter With Pulse Charge Function for 42-V/14-V Dual-Voltage PowerNet. IEEE Transactions on Industrial Electronics. 2010; 58 (5):2045-2048.
Chicago/Turabian StyleLiang-Rui Chen; Chung-Ming Young; Neng-Yi Chu; Chuan-Sheng Liu. 2010. "Phase-Locked Bidirectional Converter With Pulse Charge Function for 42-V/14-V Dual-Voltage PowerNet." IEEE Transactions on Industrial Electronics 58, no. 5: 2045-2048.
In this paper, a resistance-compensated phase-locked battery charger (RC-PLBC) mathematical model is built, and its s-domain transfer function is also derived. The stable, safe, and nonovercharging conditions of the RC-PLBC are discussed, and many criteria are proposed. After that, a complete design procedure is presented for designing a fast and safe RC-PLBC. A prototype of RC-PLBC is designed and realized to verify the charging performance. Comparing with a typical PLBC, the charge speed of the proposed RC-PLBC is improved by 18%, and the safety is held on.
Liang-Rui Chen; Chuan-Sheng Liu; Jin-Jia Chen. Improving Phase-Locked Battery Charger Speed by Using Resistance-Compensated Technique. IEEE Transactions on Industrial Electronics 2008, 56, 1205 -1211.
AMA StyleLiang-Rui Chen, Chuan-Sheng Liu, Jin-Jia Chen. Improving Phase-Locked Battery Charger Speed by Using Resistance-Compensated Technique. IEEE Transactions on Industrial Electronics. 2008; 56 (4):1205-1211.
Chicago/Turabian StyleLiang-Rui Chen; Chuan-Sheng Liu; Jin-Jia Chen. 2008. "Improving Phase-Locked Battery Charger Speed by Using Resistance-Compensated Technique." IEEE Transactions on Industrial Electronics 56, no. 4: 1205-1211.
In this paper, we consider an Li-ion battery as a grey system. The grey prediction technique is then used to develop a grey-predicted Li-ion battery charge system (GP-LBCS). The proposed GP-LBCS is designed to replace the general constant-voltage (CV) mode using the GP mode to improve the Li-ion battery charge behavior. A GP algorithm is built in GP-LBCS to make the charge trajectories faster and safer. A 3-D Y-mesh diagram for describing the charge trajectories of the proposed GP-LBCS is simulated. A GP-LBCS prototype is designed and implemented to assess the charge performance. Experiments show that the charge speed and the charge efficiency of the proposed GP-LBCS, compared with the general constant-current-CV charge system, are increased above 23% and 1.6%, respectively. The charge speed and efficiency in the proposed GP mode are improved above 34% and 7%, respectively, compared with that in the general CV mode.
Liang-Rui Chen; Roy Chaoming Hsu; Chuan-Sheng Liu. A Design of a Grey-Predicted Li-Ion Battery Charge System. IEEE Transactions on Industrial Electronics 2008, 55, 3692 -3701.
AMA StyleLiang-Rui Chen, Roy Chaoming Hsu, Chuan-Sheng Liu. A Design of a Grey-Predicted Li-Ion Battery Charge System. IEEE Transactions on Industrial Electronics. 2008; 55 (10):3692-3701.
Chicago/Turabian StyleLiang-Rui Chen; Roy Chaoming Hsu; Chuan-Sheng Liu. 2008. "A Design of a Grey-Predicted Li-Ion Battery Charge System." IEEE Transactions on Industrial Electronics 55, no. 10: 3692-3701.
Based on the environmental concern a novel central dimming system with magnetic ballast driven lighting system, Dimmable Magnetic Ballast System (DMBS), was presented to replace the electronic ballast driven lighting system. To make the DMBS work at a wide range of input voltages for dimming, an Adaptive Fluorescent Lamp Starter (AFLS) which can provide an adaptive preheating time and constant fire voltage for different operation voltage and environmental temperature is proposed in this paper. Experimental results show that features of an adaptive preheating time, a single‐pulse ignition with constant fire voltage, and zero glow current can be achieved. Compared with conventional electronic starters, the proposed AFLS can stretch the lifetime and operating voltage range of the DMBS.
Liang‐Rui Chen; Neng‐Yi Chu; Chuan‐Sheng Liu. Adaptive fluorescent lamp start control strategy for dimmable magnetic ballast system. Journal of the Chinese Institute of Engineers 2008, 31, 1089 -1094.
AMA StyleLiang‐Rui Chen, Neng‐Yi Chu, Chuan‐Sheng Liu. Adaptive fluorescent lamp start control strategy for dimmable magnetic ballast system. Journal of the Chinese Institute of Engineers. 2008; 31 (6):1089-1094.
Chicago/Turabian StyleLiang‐Rui Chen; Neng‐Yi Chu; Chuan‐Sheng Liu. 2008. "Adaptive fluorescent lamp start control strategy for dimmable magnetic ballast system." Journal of the Chinese Institute of Engineers 31, no. 6: 1089-1094.
A novel current-pumped battery charger (CPBC) is proposed in this paper to increase the Li-ion battery charging performance. A complete charging process, consisting of three subprocesses, namely: 1) the bulk current charging process; 2) the pulsed current charging process; and 3) the pulsed float charging process, can be automatically implemented by using the inherent characteristics of current-pumped phase-locked loop (CPLL). A design example for a 700-mA ldr h Li-ion battery is built to assess the CPBC's performance. In comparison with the conventional phase-locked battery charger, the battery available capacity and charging efficiency of the proposed CPBC are improved by about 6.9% and 1.5%, respectively. The results of the experiment show that a CPLL is really suitable for carrying out a Li-ion battery pulse charger.
Liang-Rui Chen; Jin-Jia Chen; Neng-Yi Chu; Gia-Yo Han. Current-Pumped Battery Charger. IEEE Transactions on Industrial Electronics 2008, 55, 2482 -2488.
AMA StyleLiang-Rui Chen, Jin-Jia Chen, Neng-Yi Chu, Gia-Yo Han. Current-Pumped Battery Charger. IEEE Transactions on Industrial Electronics. 2008; 55 (6):2482-2488.
Chicago/Turabian StyleLiang-Rui Chen; Jin-Jia Chen; Neng-Yi Chu; Gia-Yo Han. 2008. "Current-Pumped Battery Charger." IEEE Transactions on Industrial Electronics 55, no. 6: 2482-2488.
In this paper, a reflex charging strategy with the energy recovery function for a bidirectional converter (BC) is proposed to build a novel reflex-based BC (RBC) for increasing the battery charging efficiency in an uninterruptible power supply (UPS). The proposed RBC can provide a reflex charging current profile to charge the battery to obtain a high battery charging efficiency and prolong the battery life cycle. In particular, the negative pulse energy of the reflex charging current profile in the proposed RBC is recovered to reduce the battery charging dissipation. A soft transfer method is also developed in this paper to really erase the spike current in the RBC. A 400 W prototype is designed and implemented to verify the feasibility of the proposed RBC. Compared with a typical bidirectional converter, the battery charging efficiency, the battery charging speed, and the battery thermal deterioration effect are improved by about 10%, 8.8%, and 7%, respectively, with the proposed RBC.
Liang-Rui Chen; Neng-Yi Chu; Chau-Shing Wang; Ruey-Hsun Liang. Design of a Reflex-Based Bidirectional Converter With the Energy Recovery Function. IEEE Transactions on Industrial Electronics 2008, 55, 3022 -3029.
AMA StyleLiang-Rui Chen, Neng-Yi Chu, Chau-Shing Wang, Ruey-Hsun Liang. Design of a Reflex-Based Bidirectional Converter With the Energy Recovery Function. IEEE Transactions on Industrial Electronics. 2008; 55 (8):3022-3029.
Chicago/Turabian StyleLiang-Rui Chen; Neng-Yi Chu; Chau-Shing Wang; Ruey-Hsun Liang. 2008. "Design of a Reflex-Based Bidirectional Converter With the Energy Recovery Function." IEEE Transactions on Industrial Electronics 55, no. 8: 3022-3029.
In this paper, a linear model for describing the Li‐ion battery charging response is developed. Then a Phase‐Locked Battery Charger (PLBC) mathematical model is built, and its s‐domain transfer function is also derived. The stable, safe and fast charging conditions of the PLBC are discussed and many criteria are proposed. After that, a complete design procedure is presented for designing a fast and safe PLBC. Finally, a test example of the PLBC is designed and implemented for a 700 mAh Li‐ion battery in order to assess the performance of the presented Li‐ion battery model, PLBC mathematical model and design criteria. Experiments show that the computer simulation is close to the actual measurement. This means that the presented models of the Li‐ion battery and the PLBS are correct and can capture major electrical characteristics. Experiments also show that a stable, fast and non‐overcharging PLBC is successfully implemented as we wanted. This indicates that the presented PLBC design procedure is valid and can really help engineers design a fast and safe battery charging system.
Liang‐Rui Chen; Chau‐Shing Wang. Modeling, analyzing and designing a phase?locked battery charger. Journal of the Chinese Institute of Engineers 2007, 30, 1037 -1046.
AMA StyleLiang‐Rui Chen, Chau‐Shing Wang. Modeling, analyzing and designing a phase?locked battery charger. Journal of the Chinese Institute of Engineers. 2007; 30 (6):1037-1046.
Chicago/Turabian StyleLiang‐Rui Chen; Chau‐Shing Wang. 2007. "Modeling, analyzing and designing a phase?locked battery charger." Journal of the Chinese Institute of Engineers 30, no. 6: 1037-1046.