有源电力滤波器直流电压简单模糊比例控制

doi:10.3969/j.issn.2097-0706.2022.04.004

综合智慧能源 ›› 2022, Vol. 44 ›› Issue (4): 28-35.doi: 10.3969/j.issn.2097-0706.2022.04.004

有源电力滤波器直流电压简单模糊比例控制

梁曦文¹(), 王映品¹^,^*(), 李林¹(), 谢运祥²()

1.海南师范大学物理与电子工程学院,海口 571158
2.华南理工大学电力学院,广州 510640

收稿日期:2020-10-19 修回日期:2021-11-09 出版日期:2022-04-25 发布日期:2022-05-05
通讯作者: 王映品
作者简介:梁曦文（2002）,女,从事自动化与电力电子变换器方面的研究, 3293614380@qq.com;
李林（1972）,男,研究员,博士生导师,博士,从事激光技术、光电传感器等方面的研究, 974526627@qq.com;
谢运祥（1965）,男,教授,博士生导师,博士,从事电力电子变换器、电机传动、电能质量治理等方面的研究, yxxie@scut.edu.cn。
基金资助:
国家自然科学基金项目(62064004);海南省自然科学基金项目(119QN204);海南省高等学校科学研究项目(HNKY2020ZD-12)

Simple fuzzy proportional control on DC-link voltage of active power filters

LIANG Xiwen¹(), WANG Yingpin¹^,^*(), LI Lin¹(), XIE Yunxiang²()

1. College of Physics and Electronic Engineering,Hainan Normal University,Haikou 571158,China
2. School of Electric Power Engineering,South China University of Technology,Guangzhou 510640,China

Received:2020-10-19 Revised:2021-11-09 Online:2022-04-25 Published:2022-05-05
Contact: WANG Yingpin

摘要/Abstract

摘要：

有源电力滤波器（APF）是治理电流谐波最有效的装置。APF的直流侧电压要控制稳定才能很好地补偿电流谐波。目前有很多直流电压控制方面的研究,但没有揭示直流电压的内在机理也没有提出最优的控制算法。分析了直流电压的特性,提出了一种简单模糊比例（SFP）控制算法控制直流电压。该控制器基于模糊逻辑实现对比例增益K_p的调节。K_p在稳态时变小可提高补偿精度,瞬态时变大能快速收敛,因此控制器获得了极好的抑制谐波与快速稳定的性能。另外该控制器结构简单,物理意义明确,通过仿真与试验证明该算法使APF快速稳定且有效抑制谐波。

关键词: 有源电力滤波器, 直流电压, 简单模糊比例控制, 稳态, 瞬态, 电能质量

Abstract:

Active power filter（APF）is the most effective device for mitigating current harmonics.And its DC-link voltage must be sufficiently constant in value so that APF can work properly.There have been literatures about the studies on DC-link voltage regulation,but they haven't released the internal mechanisms of DC-link voltage or presented an optimal control algorithm.Based on the analysis on characteristics of APF,a simple fuzzy proportional（SFP）control algorithm for DC-link voltage is proposed.The SFP controller adjusts proportional gain K_p based on fuzzy logic.Keeping the K_p low in steady state can improve the compensation quality,and increasing the value of K_p in transient state can accelerate the convergence.Thus,the controller performs well in harmonics suppression and stabilizing operation.Besides,the proposed SFP controller is of simple structure and clear physical meaning.Finally,simulation and experiments proved that the proposed method can accelerate the convergence of APF,and suppress the harmonics stably and effectively..

Key words: APF, DC-link voltage, SFP control, steady state, transient state, power quality

中图分类号:

TK01：TM60

梁曦文, 王映品, 李林, 谢运祥. 有源电力滤波器直流电压简单模糊比例控制[J]. 综合智慧能源, 2022, 44(4): 28-35.

LIANG Xiwen, WANG Yingpin, LI Lin, XIE Yunxiang. Simple fuzzy proportional control on DC-link voltage of active power filters[J]. Integrated Intelligent Energy, 2022, 44(4): 28-35.

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参考文献 21

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规则	ΔU_dc	K_p
1	NL,PL	L
2	NS,PS	M
3	ZE	S

项目	符号	值
电网电压/V	U_s	220
基波频率/Hz	f	50
开关频率/kHz	f_sw	9.6
变换器侧L滤波器/（mH·Ω^-1）	L₁/R₁	0.45/0.02
C滤波器/μF	C	20
电网侧L滤波器/mH	L₂	0.07
参考直流电压/V	u_dc	700
直流侧电容/μF	C_dc	5 000

控制算法	13 kW负载	9 kW负载	低直流电压
PI	4.62	4.02	3.53
VPI	4.53	3.99	3.46
SFP	4.35	3.89	3.39

有源电力滤波器直流电压简单模糊比例控制

Simple fuzzy proportional control on DC-link voltage of active power filters

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