Abstract：In the application of single-phase grid-connected inverter, the parameters of current controller play an important role in the quality of system output current. It is an effective method to control the output current of inverter when load current is abrupt. In this paper, a parameter design method of proportional resonant (PR) controller is proposed to achieve the best performance of the system. By modeling and analyzing the system, the transfer function of the system is derived, and the parameters of the PR controller are determined by using the open-loop amplitudes and frequencies of the system. Through analyzing system modeling system transfer function is deduced, using the amplitude frequency characteristics to determine the PR system open loop controller parameters to obtain better dynamic performance, gain within the system bandwidth to achieve the ideal system, giving full play to the PR controller under stationary coordinate system to the advantage of the fundamental frequency current astatic tracking. Finally, the feasibility and effectiveness of the method are verified by simulation and experiment.
李坤, 郑文帅, 马超, 刘春喜. 基于单相逆变器的比例谐振控制设计[J]. 电气技术, 2019, 20(12): 23-27.
Li Kun, Zheng Wenshuai, Ma Chao, Liu Chunxi. Proportional resonant control design based on single phase inverter. Electrical Engineering, 2019, 20(12): 23-27.
[1] 郑堃, 周林, 张前进, 等. 数字控制下光伏并网逆变器稳定性分析及参数优化设计[J]. 电工技术学报2018, 33(8): 1802-1813. [2] 陈宁宁, 宋子豪, 汪泽州. 模型预测控制在光伏并网逆变器中的应用[J]. 电气技术, 2017, 18(4): 79-83. [3] 焦明曦, 李强, 张旭. 基于优化FBD法的分布式光伏并网及电能质量调节的统一控制[J]. 电气技术, 2017, 18(2): 106-110, 116. [4] 伞国成, 漆汉宏, 魏艳君, 等. 基于复功率的电网电压不平衡条件下并网逆变器控制策略[J]. 电工技术学报, 2017, 32(8): 229-236. [5] Holmes D G, Lipo T A, Mcgrath B P, et al.Optimized design of stationary frame three phase AC current regulators[J]. IEEE Transactions on Power Electronics, 2009, 24(11): 2417-2426. [6] 刘春喜, 董怀森, 任庆吉, 等. 单相电压型桥式逆变器模型参数的实验测定[J]. 电力电子技术, 2015, 49(2): 31-33, 74. [7] 郭小强, 邬伟扬, 赵清林, 等. 三相并网逆变器比例复数积分电流控制技术[J]. 中国电机工程学报, 2009, 29(15): 8-14. [8] 顾和荣, 杨子龙, 邬伟扬. 并网逆变器输出电流滞环跟踪控制技术研究[J]. 中国电机工程学报, 2006, 26(9): 108-112. [9] 黄天富, 石新春, 魏德冰, 等. 基于电流无差拍控制的三相光伏并网逆变器的研究[J]. 电力系统保护与控制, 2012, 40(11): 36-41. [10] Correa J M, Farret F A, Simoes M G.Application of a modified single-phase P-Q theory in the control of shunt and series active filters in a 400Hz Micro- grid[C]//2005 IEEE 36th Power Electronic Specialists Conference (PESC), 2005: 2585-2591. [11] Zhang R, Cardinal M, Szczesny P, et al.A grid simulator with control of single-phase power con- verters in D-Q rotating frame[C]//2002 IEEE 33rd Annual IEEE Power Electronics Specialists Con- ference, 2002: 1431-1436. [12] Yepes A G, Freijedo F D, Lopez Ó, et al.High- performance digital resonant controllers implemented with two integrators[J]. IEEE Transactions on Power Electronics, 2011, 26(2): 563-576.
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