基于快速有效值算法的逆变器三环控制策略  

Triple-loop inverter control strategy based on fast RMS algorithm

作　　者：郑颉[1] 王成华[1] 洪峰[1] 

机构地区：[1]南京航空航天大学信息科学与技术学院,江苏南京210016

出　　处：《解放军理工大学学报（自然科学版）》2010年第4期428-432,共5页Journal of PLA University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(60601024)

摘　　要：传统的逆变器电压外环、电流内环控制策略无法完全消除静差;在双环控制基础上增加有效值外环的三环控制策略虽然能减少静差,但由于有效值算法较慢,影响了系统的动态性能。为进一步优化逆变器三环控制策略,提出了将快速有效值算法用于逆变器三环控制,并给出了2种快速有效值算法的实现原理和设计方法,通过比较得出了基于迭代法的有效值算法具有低噪声干扰、低谐波干扰等优点。将该算法用于逆变器三闭环控制系统,提高了闭环控制的实时性。通过仿真和实验验证了该方法的高稳定性和优良的动态性能。A high-performance triple-loop inverter control strategy based on the fast iterative virtual value algorithm was proposed.An outer virtual value loop was added because the traditional dual-loop control strategy could not eliminate the steady-state error.However,the ordinary RMS algorithms were not fast enough to meet the needs of the dynamic characteristics of the inverter.Then two fast RMS algorithms were introduced to solve this problem.By comparing the advantages of these algorithms,an algorithm based on iteration was adopted.The results of the simulation and the experiments prove that the triple-loop control strategy with this algorithm increases the reliability and the immediacy of the system,and reduces the steady-state error effectively.

关 键 词：逆变器 静差 动态性能 三闭环控制策略 快速有效值算法 

分 类 号：TM464[电气工程—电器]