Study on an AC-AC variable frequency speed control system with continuous output frequency

LI Yudong; HAN Ya; LI Chuanwei; MA Xinghe

doi:10.13873/j.1000-9787(2020)02-0011-03

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Study on an AC-AC variable frequency speed control system with continuous output frequency

更新时间：2025-09-11

- Study on an AC-AC variable frequency speed control system with continuous output frequency
- Issue 2, Pages: 11-13+17(2020)
- 作者机构：
  
  河南理工大学电气工程与自动化学院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-9787(2020)02-0011-03
  CLC： TM921.51
- Published：2020
- 稿件说明：
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LI Yudong, HAN Ya, LI Chuanwei, et al. Study on an AC-AC variable frequency speed control system with continuous output frequency[J]. 2020, (2): 11-13+17.
DOI：

LI Yudong, HAN Ya, LI Chuanwei, et al. Study on an AC-AC variable frequency speed control system with continuous output frequency[J]. 2020, (2): 11-13+17. DOI： 10.13873/j.1000-9787(2020)02-0011-03.

摘要

针对传统交—交变频电路功率器件多、控制复杂和功率因数低等缺点

在脉冲阻塞式交—交变频控制原理基础上

依据输出电压的平均值跟随期望电压的变化

分别设计了三相输入三相输出和六相输入三相输出型输出频率连续的交—交变频电路结构。分析得知该类交—交变频电路在输出电压频率上没有限制

可实现输出频率的连续变化。设计了三相输入和六相输入输出频率连续的交—交变频调速系统

并在MATLAB/SIMULINK仿真环境下建立这两种调速系统的仿真模型

理论分析和仿真结果相一致

验证了该类变频调速系统的正确性与可行性。

Abstract

In view of the disadvantages of the traditional AC/AC converter circuit

such as too many power devices

complex control and low power factor

on the basis of plugged pulse AC-AC frequency conversion control principle

according to average value of output voltage followed by the change of expected voltage

a AC-AC variable frequency circuit structure of three-phase input three-phase output circuit and a six-phase input to threephase output circuit with continuous output frequency are designed. It is found that there is no limit on the output voltage frequency of this type of AC/AC converter

the continuous variation of output frequency can be realized.Finally

three-phase to three-phase and six-phase to three-phase with continuous output frequency AC-AC variable frequency speed regulating system are designed respectively

and the simulation models for these two speed control systems are established in MATLAB/SIMULINK simulation environment. The theoretical analysis is consistent with the simulation results

which verifies the correctness and feasibility of this kind of variable frequency speed control system.

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