一种基于公共连接点谐波分布的模块化APF无线并联控制策略

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摘要提出一种基于公共连接点（PCC）谐波电流分布的新型模块化有源电力滤波器（APF）无线并联控制策略,以克服传统有线并联控制技术存在的通信连接线多、控制复杂、硬件成本高、可靠性低等缺陷以及容量限制无线并联控制技术存在的模块补偿容量分配不均衡等问题。该策略充分利用PCC系统、负载及APF输出电流分布信息,采取一定的判别机制即可实现模块化APF故障冗余无线并联控制。首先阐述所提无线并联控制策略的基本原理,并提出包括检测、同步、故障辨识、故障和故障恢复辨识以及自动均流等完备的无线控制技术方案;然后提出基于该策略的模块化APF控制系统实现方法。理论分析和实验结果表明,所提新型无线并联控制策略实现了各模块在结构和控制上的完全独立,并联运行的灵活性、可靠性和稳定性较高。

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	许胜
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	赵剑锋

关键词 ：模块化有源电力滤波器, 无线并联控制, 故障冗余, 故障恢复, 自动均流控制

Abstract：A novel wireless parallel control strategy for modular active power filters (APF) is proposed in this paper based on the harmonic current distribution at the point of common coupling (PCC). This strategy is used to overcome the defects of traditional wired control methods, such as complex communication links and control, high cost and low reliability. Moreover, it can also solve unbalanced capacity distribution among modules under the capacity limitation wireless control mode. By utilizing the current distribution information at the PCC, the fault tolerant control can be realized without communication among the modules. First, the primary principle of this novel wireless control strategy was discussed in detail. The overall technological scheme was then introduced, including current detection, synchronous control, fault recognition, fault type recognition and automatic current-balancing control. Finally, the control system of the modular APF based on this strategy was designed. Theoretical analysis and experimental results show that, with this method, both the construction and the control system of the modules are independent with each other. In other word, the modular APF has higher flexibility, security and stability.

Key words： Modular active power filters (APF) wireless parallel control fault tolerant failure recovery current-balancing control

收稿日期: 2015-08-29 出版日期: 2017-06-30

PACS:	TM46
	TN713+.8

基金资助:国家自然科学青年基金（51607037）,江苏省“333工程”科研项目（BRA2016184）,江苏省产学研前瞻性联合研究项目（BY2016076-14）和泰州市科技支撑计划项目（TS201629）资助

通讯作者: 曹武男,1984年生,博士,讲师,研究方向为电能质量控制技术、低压大电流有源滤波技术。E-mail: caowu_ee@seu.edu.cn

作者简介: 许胜男,1976年生,博士,副教授,研究方向为电力电子技术在电力系统中的应用。E-mail: xush_00@sina.com

引用本文:

许胜, 曹武, 赵剑锋. 一种基于公共连接点谐波分布的模块化APF无线并联控制策略[J]. 电工技术学报, 2017, 32(12): 117-126. Xu Sheng, Cao Wu, Zhao Jianfeng. A Novel Wireless Parallel Control Strategy for Modular APF Based on the Point of Common Coupling Harmonic Currents Distribution. Transactions of China Electrotechnical Society, 2017, 32(12): 117-126.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2017/V32/I12/117

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