期刊文献+

一种三相逆变电源改进型P-Q优化控制研究

Research on an Improved P-Q Optimal Control for Three-Phase Inverters
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摘要 为了提升三相逆变电源并网模式下系统的功率控制性能,本文提出了一种新颖的三相逆变电源P-Q控制器参数优化设计方法。本文首先通过在三相逆变电源无功功率控制环增加解耦控制量,设计了能够提升三相逆变电压无功功率控制精度的改进型P-Q控制器模型,而后将该改进型P-Q控制器的参数优化设计问题转换为一个典型的有约束优化问题,设置系统有功功率的ITAE和系统无功功率的ITAE设计加权和为目标函数,利用所设计的遗传算法获得P-Q控制器最优参数,最后在一台容量为2.5kW三相并网逆变系统上进行了仿真测试实验和硬件平台测试实验。实验结果表明,相对于采用传统Z-N经验法的系统,本文所设计的基于遗传算法的三相逆变电源改进型P-Q控制系统具有更优的有功功率控制性能和无功功率控制性能。 In order to improve the power control performance of a three-phase inverter in grid-connected mode,this paper presents a novel P-Q controller design method for the three-phase inverter.The core content behind the proposed method is firstly formulating the design problem of P-Q controller for the three-phase inverter as a typical constrained optimization problem,where the ITAE of active power and the ITAE of reactive power are weighed as the optimization objective function.Then,a Multi non-uniform mutation-Genetic Algorithm is designed to solve this formulated problem.At last,the superiority in power control performance of the proposed method to tradition Z-N empirical method is demonstrated by simulation and experimental results on a 2.5kW three-phase grid-connected inverter.
作者 王环 戴瑜兴 Huan Wang;Yu-Xing Dai(College of Electrical and Information Engineering,Hunan University,Changsha 410082,China;College of Mathematics Physics and Electronic Information Engineering,Wenzhou University,Wenzhou 325035,China)
出处 《信息工程期刊(中英文版)》 2018年第1期15-21,共7页 Scientific Journal of Information Engineering
关键词 三相逆变电源 改进型P-Q控制 遗传算法 Three-Phase Inverters Improved P-Q Control Genetic Algorithm
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