并网逆变器并联系统的鲁棒控制与环流分析

doi:10.19595/j.cnki.1000-6753.tces.160653

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (1291 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract A robust control strategy for the grid-connected parallel inverters is developed in this paper. Based on the analysis of the circuit structure and circulating current of the parallel system, a simple single leg control method is proposed. Structured singular value μ synthesis based on H_∞ control theory is applied, to decrease the impacts from various uncertainties as well as improve the stability and performance of the parallel system. As a result, the accurate current control and circulating current restraining are realized. Further, the range of the uncertainty is given for stable operation of the system, while the controller can ensure the stability in the determined range. The simulation and experimental results show the effectiveness of the proposed control scheme.

Key words： Parallel inverter system grid connection robust control μ synthesis circulating current

Published: 10 October 2017

PACS:

TM315

Fund:国家自然科学基金项目（51577124）、天津市应用基础与前沿技术研究计划重点项目（15JCZDJC32100）和天津市科技支撑计划项目资助（15ZCZDGX00980）

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Fang Hongwei
	Tao Yue
	Xiao Zhaoxia
	He Yejun

Cite this article:

Fang Hongwei,Tao Yue,Xiao Zhaoxia等. Robust Control and Circulating Current Analysis for Grid-Connected Parallel Inverters[J]. Transactions of China Electrotechnical Society, 2017, 32(18): 248-258.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.160653 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I18/248

[1] 夏长亮. 永磁风力发电系统及其功率变换技术[J]. 电工技术学报, 2012, 27(11): 1-13.
Xia Changliang. Wind energy conversion system based on PMSG and its power converter techno- logy[J]. Transactions of China Electrotechnical Society, 2012, 27(11): 1-13.
[2] 兰征, 涂春鸣, 肖凡, 等. 电力电子变压器对交直流混合微网功率控制的研究[J]. 电工技术学报, 2015, 30(23): 50-57.
Lan Zheng, Tu Chunming, Xiao Fan, et al. The power control of power electronic transformer in Hybrid AC-DC microgrid[J]. Transactions of China Elec- trotechnical Society, 2015, 30(23): 50-57.
[3] 赵新, 吴学智, 李葛亮, 等. 利用虚拟阻抗改善电励磁同步发电机弱磁控制性能[J]. 电工技术学报, 2015, 30(22): 49-56.
Zhao Xin, Wu Xuezhi, Li Geliang, et al. Improving the flux weakening control performance of electrically excited synchronous generators based on virtual impedance[J]. Transactions of China Electro- technical Society, 2015, 30(22): 49-56.
[4] 朱鑫, 刘俊勇, 刘洋, 等. 基于滑模变结构的含不平衡负荷微电网控制策略研究[J]. 电力系统保护与控制, 2015, 43(6): 25-32.
Zhu Xin, Liu Junyong, Liu Yang, et al. Study of micro-grid control strategy contained unbalanced load based on sliding-mode variable structure[J]. Power System Protection and Control, 2015, 43(6): 25-32.
[5] Yang Shuitao, Lei Qin, Peng F Z, et al. A robust control scheme for grid connected voltage source inverters[J]. IEEE Transactions on Industrial Elec- tronics, 2011, 58(1): 202-212.
[6] 李宾, 姚文熙, 杭丽君, 等. 基于状态观测器的LCL滤波器型并网逆变器状态反馈最优化设计[J]. 电工技术学报, 2014, 29(6): 80-90.
Li Bin, Yao Wenxi, Hang Lijun, et al. Optimized design of state variable feedback of grid-connected inverter with LCL-filter based on state observer[J]. Transactions of China Electrotechnical Society, 2014, 29(6): 80-90.
[7] 杨露露, 时斌, 谢玲玲. 单相逆变器并网控制方法的对比研究[J]. 电气技术, 2014(2): 33-37.
Yang Lulu, Shi Bin, Xie Lingling. The comparative study of the control methods of single-phase grid- connected inverter[J]. Electrical Engineering, 2014(2): 33-37.
[8] 马宏伟, 李永东, 郑泽东, 等. 电流环模型预测控制在PWM整流器中的应用[J]. 电工技术学报, 2014, 29(8): 136-141.
Ma Hongwei, Li Yongdong, Zheng Zedong, et al. PWM rectifier using a model predictive control method in the current loop[J]. Transactions of China Electrotechnical Society, 2014, 29(8): 136-141.
[9] 王萌, 施艳艳, 沈明辉, 等. 三相电压型PWM整流器模型自校正预测控制[J]. 电工技术学报, 2014, 29(8): 151-157.
Wang Meng, Shi Yanyan, Shen Minghui, et al. Predictive control of three-phase voltage source PWM rectifiers based on model self-correction[J]. Transactions of China Electrotechnical Society, 2014, 29(8): 151-157.
[10] 张建文, 王鹏, 王晗, 等. 多逆变器并联的均流控制策略[J]. 电工技术学报, 2015, 30(18): 61-68.
Zhang Jianwen, Wang Peng, Wang Han, et al. Average-current control strategy of multiple parallel inverters[J]. Transactions of China Electrotechnical Society, 2015, 30(18): 61-68.
[11] 李依璘, 王明渝, 梁慧慧, 等. 基于分布式控制的不同容量逆变器并联技术研究[J]. 电力系统保护与控制, 2014, 42(6): 123-128.
Li Yilin, Wang Mingyu, Liang Huihui, et al. Study on distribution controlled inverter parallel system with different power ratings[J]. Power System Protection and Control, 2014, 42(6): 123-128.
[12] 黄冬冬, 吴在军, 窦晓波, 等. 光伏规模化并网的电能质量复合控制策略研究[J]. 电力系统保护与控制, 2015, 43(3): 107-112.
Huang Dongdong, Wu Zaijun, Dou Xiaobo, et al. A power quality composite control strategy based on large-scale grid-connected photovoltaic power generation[J]. Power System Protection and Control, 2015, 43(3): 107-112.
[13] 吕志鹏, 罗安, 蒋雯倩, 等. 四桥臂微网逆变器高性能并网 H ∞ 控制研究[J]. 中国电机工程学报, 2012, 32(6): 1-8.
Lü Zhipeng, Luo An, Jiang Wenqian, et al. High power quality H ∞ control research on four-leg grid- connected inverters in three-phase four-wire micro- grid[J]. Proceedings of the CSEE, 2012, 32(6): 1-8.
[14] Seyed Abbas Taher, Mahdi Zolfaghari. Designing robust controller to improve current-sharing for parallel-connected inverter-based DGs considering line impedance impact in microgrid networks[J]. Electrical Power and Energy Systems, 2014, 63: 625-644.
[15] 王成山, 肖朝霞, 王守相. 微网中分布式电源逆变器的多环反馈控制策略[J]. 电工技术学报, 2009, 24(2): 100-107.
Wang Chengshan, Xiao Zhaoxia, Wang Shouxiang. Multiple feedback loop control scheme for inverters of the micro source in microgrids[J]. Transactions of China Electrotechnical Society, 2009, 24(2): 100- 107.
[16] 曾正, 杨欢, 赵荣祥. LCL滤波并网逆变器的鲁棒控制[J]. 高电压技术, 2011, 37(12): 3143-3149.
Zeng Zheng, Yang Huan, Zhao Rongxiang. Robust control strategy for grid-connected inverters with LCL filter[J]. High Voltage Engineering, 2011, 37(12): 3143-3149.