基于变换器的分段式直接功率控制

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摘要采用传统直接功率控制（DPC）方法的变换器装置很难兼顾系统不同运行阶段的控制要求,为此,提出了一种基于多开关表的分段式DPC控制方法。该方法统筹考虑了系统的各项性能指标,设计实现了四种开关表,根据系统不同阶段的控制要求选择最佳开关状态。与传统DPC系统的仿真和实验对比表明,采用分段式DPC控制的变换器装置起动时间减少10%以上,稳态运行时交流侧电流谐波总畸变率（THD）降低30%以上,直流侧电压的暂态响应时间减少27.3%以上,进一步验证了分段式DPC控制方法的可行性和有效性。

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	黄晶晶
	孙元岗
	同向前
	张爱民
	王在福

关键词 ：变换器, 直接功率控制, 分段控制, 总谐波畸变率, 开关表

Abstract：It is difficult for the classical direct power control (DPC) to satisfy the control requirements of converter under different operation conditions. A novel multi-switching-table based sectional DPC method is therefore proposed in this paper. Four switching tables, which considerate the performance indicators comprehensively, are designed. The best switching states can be acquired according to the different control requirements. The simulation and experiment show that, compared with the classical DPC, the starting time of the converter is reduced at least 10%, the current total harmonic distortion (THD) at the steady state is reduced at least 30%, and the transient setting time of the DC voltage is shortened at least 27.3%. The feasibility and effectiveness of the proposed sectional DPC method are verified.

Key words： Converter direct power control sectional control total harmonic distortion switching table

收稿日期: 2014-05-28 出版日期: 2016-07-28

PACS:

TN624

基金资助:国家自然科学基金（51507138）,陕西省教育厅专项科研基金（15JK1502）和陕西省重大科技创新项目专项资金（2008ZKC01-09）资助

作者简介: 黄晶晶女,1986年生,博士,讲师,研究方向为电力电子与智能控制技术。E-mail: hjj7759@163.com

引用本文:

黄晶晶, 孙元岗, 同向前, 张爱民, 王在福. 基于变换器的分段式直接功率控制[J]. 电工技术学报, 2016, 31(14): 176-182. Huang Jingjing, Sun Yuangang, Tong Xiangqian, Zhang Aimin, Wang Zaifu. Sectional Direct Power Control for Converter. Transactions of China Electrotechnical Society, 2016, 31(14): 176-182.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I14/176

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