双馈调速系统主电路设计与仿真  

Design and Simulation of Main Circuit in Doubly-fed Speed Regulation System

作　　者：李瑾[1] Li Jin(School of Electrical Engineering,Nanchang Institute of Technology,Nanchang 330099)

机构地区：[1]南昌工程学院电气工程学院,江西南昌330099

出　　处：《冶金设备》2022年第3期31-34,26,共5页Metallurgical Equipment

基　　金：国家自然科学基金(NO:51667015)。

摘　　要：对于拖动高压大容量风机和泵类负载的电机,采用双馈调速时转子侧变频器只处理转差功率,在调速范围不大时所接变频器的容量可以大大减小从而显著降低成本,因此是一种较为理想的节能降耗的调速方案。本文对应用于高压大功率双馈调速系统的主电路即交-交变频器进行设计,并用MATLAB仿真软件对采用“近似余弦交点法”控制的该交-交变频电路进行仿真实验且给出仿真波形,从而验证了该控制方法的正确性。The rotor side converter only handles the slip power for doubly-fed speed regulation motor dragging high voltage and power fan and pump loads, so the connected converter power can be greatly reduced to significantly reduce the cost when the speed adjustment range is not wide. Therefore, it is an ideal energy saving and consumption reduction speed control scheme. In this paper, the main circuit of high power doubly-fed speed regulation system AC-AC converter is designed. The simulated AC-AC converter controlled by “approximate cosine intersection method” is carried out with MATLAB software, and the simulation waveform is given to verify the correctness of the control method.

关 键 词：MATLAB 双馈调速 交-交变频器 仿真 

分 类 号：TM343[电气工程—电机]