|
|
|
| Design of Control Parameters for Parallel-Connected Inverters |
| Kan Jiarong1, Wu Yunya1, Xie Shaojun2 |
| 1. Yancheng Institute of Technology Yancheng 224051 China 2. Nanjing University of Aeronautics and Astronautics Nanjing 210016 China |
|
|
|
|
Abstract In the paralleled inverters, the inverter unit should have big equivalent output impedance and rigid output characteristic, since the inverter system need to restrain the circulating current and keep the output voltage constant. The analysis result indicates that the equivalent output impedance and output characteristic is affected by the parameters of the current-loop and voltage-loop in SPWM inverter with instantaneous inductor-current feedback. A simple method for designing the parameters of the inverter unit in paralleled system is proposed. Simulation and experimental results verify the correctness of the theoretic analysis.
|
|
Received: 17 June 2008
Published: 17 February 2014
|
|
|
|
|
|
[1] Sun Xiao, Lee Yim Shu, Xu Dehong. Modeling, analysis, and implementation of parallel multi- inverter systems with instantaneous average-current- sharing scheme[J]. IEEE Trans. on PE, 2003, 18(3): 844-856.
[2] Chen Y K, Wu Y E, Wu T F, et al. CWDC strategy for paralleled multi-inverter systems achieving a weighted output current distribution[C]. IEEE APEC, Texas, 2002: 1018-1023.
[3] Tuladhar A, Jin H, Unger T, et al. Control of parallel inverters in distributed AC power systems with consideration of line impedance effect[J]. IEEE Trans. on IA, 2000, 36(1): 131-138.
[4] Guerrero J M, L Garcia de Vicuna, J Matas, et al. Output impedance design of parallel-connected UPS inverters with wireless load-sharing control[J]. IEEE Trans. on Ind. Electron, 2005, 52(4): 1126-1135.
[5] Kan Jiarong, Xie Shaojun. Research on the power sharing of the parallel inverters without control interconnection basing on droop characteristic[C]. IEEE IPEMC, China, 2006: 1537-1541.
[6] 林新春, 段善旭, 康勇, 等. UPS无互联线并联中基于解耦控制的下垂特性控制方案[J]. 中国电机工程学报, 2004, 24(2): 117-122.
[7] 姚玮, 高明智, 陈敏, 等. 可调阻抗无互联线并联逆变器的控制方法[J]. 电力电子技术, 2007, 41(9): 21-23.
[8] 许爱国, 谢少军. 电容电流反馈瞬时值控制逆变器数字控制技术研究[J]. 中国电机工程学报, 2005, 25(1): 49-53.
[9] 陈东华, 谢少军, 周波. 瞬时值电流控制逆变技术比较[J]. 南京航空航天大学学报, 2004, 36(3): 343-347.
[10] 陈良亮, 肖岚, 严仰光. 双闭环控制电压源逆变器外特性研究[J]. 电力电子技术, 2004, 38(3): 6-7.
作者简介:阚加荣 男, 1979年生, 讲师, 硕士, 研究方向为逆变器并联控制技术。吴云亚 女, 1979年生, 硕士研究生, 讲师, 研究方向为电力电子技术。 |
|
|
|
2009, Vol. 24 
