基于Buck型电路的感应加热电源控制算法研究  

Research on the Control Algorithm about Induction Heating Power Supply Based on Buck Type Circuit

作　　者：王辉[1] 赵留羊 费致根[1] 刘红霞[1] WANG Hui;ZHAO Liuyang;FEI Zhigen;LIU Hongxia(Mechanical and Electrical Engineering Institute,Zhengzhou University of Light Industry,Zhengzhou 450002,Henan,China)

机构地区：[1]郑州轻工业学院机电工程学院,河南郑州450002

出　　处：《电气传动》2018年第10期59-63,共5页Electric Drive

基　　金：2017河南省科技攻关项目(172102310070);2016年河南省科技攻关(162102410078);郑州轻工业学院校内基金(2015XJJZ024)

摘　　要：针对感应加热电源存在的精度低、谐波污染高和效率低等问题,传统方法一般是采用PID或者模糊控制法对逆变电路进行优化,很难达到预期效果。基于节能环保的理念,设计了一种模糊滑模控制算法对电路进行优化,通过仿真建立了20 kW/100 kHz的Buck型感应加热电路,采用模糊滑模控制算法对Buck型电路进行控制,提高了输出电压的稳定性和快速响应性,实现了近似输出恒定功率的控制及较低的谐波含量,使感应加热电源具有更好的鲁棒性和自适应能力;符合IEC61000—3—2ClassA标准。Aiming at the problems of low precision,high harmonic pollution and low efficiency of the induction heating power supply,the traditional method use the PID or fuzzy control method to optimize the inverter circuit,it is hard to complete the desired results.Based on the concept of energy saving and environmental protection,fuzzy and sliding mode variable structure combining control algorithm was adopted to optimize the circuit.The Buck type 20 kW/100 kHz induction heating circuit was built by simulation,fuzzy and sliding mode variable structure combining control algorithm was used to control the Buck circuit.The output voltage stability and fast response were improved,and the control of constant power output and low harmonic content were realized.The induction heating power supply had better robustness and adaptability.It meet IEC61000-3-2ClassA standards.

关 键 词：感应加热电源 Buck型电路 模糊滑模控制 

分 类 号：TM924.1[电气工程—电力电子与电力传动]