基于双变量控制原理的变压变频新方法  

A Novel Method of VVVF Based on Two-Variable Control Theory

作　　者：王新[1] 林家骏[1] 杜庆楠[2] 

机构地区：[1]华东理工大学信息科学与工程学院,上海200237 [2]河南理工大学电气工程系,焦作454100

出　　处：《华东理工大学学报（自然科学版）》2005年第3期358-361,共4页Journal of East China University of Science and Technology

基　　金：河南省自然科学基金资助项目(004060100);河南省教育厅自然科学基金资助项目(20015100013)

摘　　要：阐述了在变频调速系统中运用变压变频技术的必要性,分析了使用传统余弦交点法进行在线变压变频存在的缺陷,进而提出了基于双变量控制原理、自然无环流控制和对称余弦法的变压变频新方法,给出了在保持输出频率不变条件下闭环调压的具体实现方法。对变压变频新方法的实验结果进行了仿真、分析和比较,验证了新方法具有良好的控制效果。The necessity of VVVF (variable-voltage and variable-frequency) technology in variable (frequency) speed regulation systems is expounded. The limitation of online VVVF by the traditional cosine join method is analyzed. Based on the two-variable control theory, the natural non-circumfluence control method and the symmetrical cosine join method a novel method of VVVF is put forward. The particular realization method of closed loop VVVF technique with invariable output frequency is given. Finally, the test result by the novel method of VVVF is simulated and analyzed, and a good control effect of the novel method is validated.

关 键 词：交-交变频器 变压变频(VVVF) 变频调速 调压调速 相控理论 

分 类 号：TP276[自动化与计算机技术—检测技术与自动化装置]