电气传动2019，Vol.49Issue(1)：3-11,9.DOI:10.19457/j.1001-2095.dqcd19085
变换器无滞后模型及准连续控制电流调节器差分设计方法
Delayless Model of Converters and Quasi-continuous Current Regulator Design Method Based on Difference-equations
马小亮1
作者信息
- 1. 天津电气科学研究院有限公司 天津 300180) (原名——天津电气传动设计研究所
- 折叠
摘要
Abstract
The most essential restricting factor of power electronic system dynamic performance is the converter delay time. Almost all of documents told that converters are considered as delay or inertia units with half switching period T0/2(engineering model),then regulator parameters of current loops are calculated by using engineering designing method. A different opinion is explained with the aid of frequency characteristics that many continuous controlled converters,for example thyristor rectifiers(including cycloconverters and LCI)and natural sampled PWM converters etc,are proportional units without delay time(delayless models). The regulator parameters of the current loops adopting delayless models can not to be calculated using the engineering method as usual. The regulator design method based on difference-equations was proposed,it made system reach steady state only through 2 switching periods (2 step response)with accepted overshoot,had good anti-disturb ability and eliminate the crossing-coupling of 3-phase AC current control system. The feasibility of the proposed model and design method was verified by simulations and testing results of an inverter-fed motor drive prototype,where its quasi-continuous current control loop and PWM were realized by using FPGA.关键词
无滞后模型/差分设计方法/准连续电流控制/2拍响应/交叉耦合Key words
delayless model/design method based on difference-equations/quasi-continuous current control/2 step response/crossing-coupling分类
信息技术与安全科学引用本文复制引用
马小亮..变换器无滞后模型及准连续控制电流调节器差分设计方法[J].电气传动,2019,49(1):3-11,9.
