Abstract:The proportional-integral (PI) control is widely used in permanent magnet synchronous generator wind generation system based on current source converter (CSC-PMSG-WGS). The traditional PI parameter design methods have issues such as low accuracy caused by approximate calculation or low generality caused by intelligent optimization algorithms for searching optimal PI parameters. To design proper PI parameters for the system with comprehensive considerations of reliability and simplicity, a general method based on the analytical method is proposed in this paper. Firstly, the transfer functions of system are analyzed considering the practical system specifications and the analytical formulas of PI parameters are derived from the transfer functions. Secondly, according to the control performance requirements and parameters of the CSC-PMSG-WGS, the key parameters in the formulas are determined, thus the final PI parameters are acquired. Finally, a 10 kW system is taken as an example, and the design process of PI parameters by the proposed method is presented in detail. The proposed method is verified by simulation in Matlab/Simulink and experimental results, which shows that the design of PI parameters for the controller of CSC-PMSG-WGS could be significantly simplified with expected transient and steady state control performances.
茆美琴, 张中洋, 丁勇, 张榴晨. 基于解析计算的CSC-PMSG-WGS控制器PI参数设计[J]. 电工技术学报, 2017, 32(20): 205-212.
Mao Meiqin, Zhang Zhongyang, Ding Yong, Chang Liuchen. Analytical-Method-Based Design of PI Parameters of Controller Used in CSC-PMSG-WGS. Transactions of China Electrotechnical Society, 2017, 32(20): 205-212.
[1] Baroudi J A, Dinavahi V, Knight A M. A review of power converter topologies for wind generators[J]. Renewable Energy, 2007, 32(14): 2369-2385. [2] Lang Yongqiang, Wu Bin, Zargari N. A high-power current source converter based wind energy system[J]. IEEE Transactions on Industry Application, 2008, 55(7): 2786-2797. [3] Sharma S, Singh B. An autonomous wind energy conversion system with permanent magnet syn- chronous generator[C]//International Conference on Energy, Automation and Signal (ICEAS), Bhubanes- war, Odisha, India, 2011: 1-6. [4] Li S, Haskew T A, Swatloski R P, et al. Optimal and direct-current vector control of direct-driven PMSG wind turbines[J]. IEEE Transactions on Power Elec- tronics, 2012, 27(5): 2325-2337. [5] 符慧, 左月飞, 刘闯, 等. 永磁同步电机转速环的一种变结构PI控制器[J]. 电工技术学报, 2015, 30(12): 237-242. Fu Hui, Zuo Yuefei, Liu Chuang, et al. A variable structure PI controller for permanent magnetic synchronous motor speed-regulation system[J]. Transactions of China Electrotechnical Society, 2015, 30(12): 237-242. [6] 陈伯时. 电力拖动自动控制系统[M]. 3版. 北京: 机械工业出版社, 2007. [7] 刘文军, 唐西胜, 周龙, 等. 基于背靠背双PWM变流器的飞轮储能系统并网控制方法研究[J]. 电工技术学报, 2015, 30(16): 120-128. Liu Wenjun, Tang Xisheng, Zhou Long, et al. Research on grid-connected control method for FESS based on back-to-back converter[J]. Transactions of China Electrotechnical Society, 2015, 30(16): 120- 128. [8] 杨睿茜, 陈红坤, 陶玉波, 等. 双馈式风机控制器参数整定的实用方法[J]. 电力系统保护与控制, 2015, 43(2): 63-69. Yang Ruixi, Chen Hongkun, Tao Yubo, et al. A practical method on doubly-fed induction generator controller parameter determination[J]. Power System Protection and Control, 2015, 43(2): 63-69. [9] Ali A, Moussa A, Abdelatif K, et al. Comparative performance of wind turbine driven PMSG with PI-controllers tuned using heuristic optimization algorithms[C]//IEEE International Energy Conference (ENERGYCON), Cavtat, Croatia, 2014: 120-126. [10] 史林军, 唐国庆. 基于改进PSO算法的FESS的PI参数优化[J]. 电力系统保护与控制, 2010, 38(10): 52-57. Shi Linjun, Tang Guoqing. FESS PI parameter optimization by an improved PSO algorithm[J]. Power System Protection and Control, 2010, 38(10): 52-57. [11] 李龙, 刘重阳, 贲洪奇. 基于神经元PI控制的PWM整流器动态特性研究[J]. 电力系统保护与控制, 2013, 41(11): 124-128. Li Long, Liu Chongyang, Ben Hongqi. Research of the dynamic characteristics of the PWM converter based on neurons PI control[J]. Power System Protection and Control, 2013, 41(11): 124-128. [12] 喻锋, 王西田, 杨煜, 等. 一种混合遗传算法在HVDC定电流控制器参数优化中的应用[J]. 电力系统保护与控制, 2014, 42(9): 126-131. Yu Feng, Wang Xitian, Yang Yu, et al. An appli- cation of hybrid genetic algorithm in the parameters optimization of HVDC constant current controller[J]. Power System Protection and Control, 2014, 42(9): 126-131. [13] Wei T, Junmei H, Jie W, et al. A PID tuning method based on dominant poles and phase margin[C]// Control Conference Chinese, Beijing, China, 2010: 3402-3405. [14] Lidozzi A, Soleri L, Crescimbini F, et al. Direct tuning strategy for speed controlled PMSM drives[C]// IEEE International Symposium on Industrial Elec- tronics (ISIE), Bari, Italy, 2010: 1265-1270. [15] 王莉娜, 朱鸿悦, 杨宗军. 永磁同步电动机调速系统PI控制器参数整定方法[J]. 电工技术学报, 2014, 29(5): 104-117. Wang Lina, Zhu Hongyue, Yang Zongjun. Tuning method for PI controllers of PMSM driving system[J]. Transactions of China Electrotechnical Society, 2014, 29(5): 104-117. [16] 贺明智, 许建平, 游小杰, 等. 环路延时对数字峰值电压控制开关变换器瞬态性能的影响[J]. 中国电机工程学报, 2009, 29(6): 1-7. He Mingzhi, Xu Jianping, You Xiaojie, et al. Time delay effect on transient performance of digital peak voltage controlled switching converter[J]. Pro- ceedings of the CSEE, 2009, 29(6): 1-7. [17] Mao M, Zhang Z, Ding Y, et al. PI parameters design of universal controller for PMSG-WGS based on per-unit system[C]//IEEE Energy Conversion Congress and Exposition (ECCE), Montreal, QC, Canada, 2015: 1681-1688.