PWM整流器直接功率控制开关表优化方法

通过功率变换器的数学模型,分析了现行直接功率控制（DPC）系统的原理。传统DPC系统功率内环采用一个开关表同时控制瞬时有功功率和无功功率,开关表的设计决定了系统的动、静态性能,为了满足不同的控制要求,文章详细分析了开关表的设计方法,通过对传统开关表的改进,克服了传统开关表的缺点,获得了良好的功率控制效果。仿真结果验证了新开关表设计方法的有效性。...

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Bibliographic Details
Published in电测与仪表 Vol. 51; no. 9; pp. 92 - 96
Main Author 欧阳武 卢香平 杨兴武
Format Journal Article
LanguageChinese
Published 江西南昌供电公司,南昌,330006%江西机电职业技术学院,南昌,330013%上海电力学院,上海,200090 2014
Subjects
PWM整流器
开关表
电能质量
直接功率控制
direct power control
PWM rectifier
switching table
电能质量
power quality
直接功率控制
开关表
PWM整流器
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ISSN1001-1390

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Summary:通过功率变换器的数学模型,分析了现行直接功率控制（DPC）系统的原理。传统DPC系统功率内环采用一个开关表同时控制瞬时有功功率和无功功率,开关表的设计决定了系统的动、静态性能,为了满足不同的控制要求,文章详细分析了开关表的设计方法,通过对传统开关表的改进,克服了传统开关表的缺点,获得了良好的功率控制效果。仿真结果验证了新开关表设计方法的有效性。
Bibliography:23-1202/TH
direct power control;switching table;PWM rectifier;power quality
The principle and properties of the direct power control（ DPC） system for present three phase PWM rectifiers has been analyzed in this paper through the mathematical model. Switching table in power loop of traditional DPC system controls active power and reactive power instantaneously. Thus the system dynamic and static performance mainly depends on the design of the switching table. In order to meet different control requirements,the switching table design methods are analyzed in detail,and an improved switching table is designed to overcome the shortcomings of the traditional ways,which will obtain good power control effect. Simulation results verify the novel switching table design method.
OUYANG Wu , LU Xiang-ping, YANG Xing-wu （1. Jiangxi Nanehang Power Supply Company, STATE GRID, Nanehang 330006, China. 2. Jiangxi Voeational College of Meehanieal Electrical Technology, Nanchang 330013, China. 3. Department of Eleetrieal Engineering
ISSN:1001-1390