模拟同步发电机特性的焊接同步逆变器设计  

Design of welding synchronization inverter simulating the characteristic of synchronous generator

作　　者：褚晓锐[1] 

机构地区：[1]西昌学院工程技术学院,四川西昌615013

出　　处：《电焊机》2015年第8期115-118,共4页Electric Welding Machine

摘　　要：研究了一种模拟同步发电机特性的同步逆变器控制策略。根据同步发电机的本体数学模型、原动机调节模块及励磁电压调节模块,设计了虚拟同步逆变器算法,基于此控制策略,同步逆变器能够较好地模拟同步发电机特性,具有良好的下垂外特性及可调的转动惯量,提高了焊接系统的稳定性及可靠性。在MATAB/simulink中进行系统模型的搭建与仿真。仿真结果表明,该控制策略下同步逆变器能够较快的跟踪焊接负荷的变化。A control strategy of synchronization inverter simulating the characteristic of synchronous generator is studied in this paper.According to the mathematical model of synchronous generator, prime mover control module and exciting voltage regulator module,a virtual synchronous inverter algorithm is designed. Based on the control strategy,the synchronization inverter can simulate the characteristics of synchronous generator well,and has good sagging external characteristic and adjustable rotary inertia,and the stability and reliability of welding system are improved. Finally,the construction and simulation of system model are conducted in the MATAB/simulink. The simulation results show that with this control strategy the synchronous inverter can rapidly track the change of welding load.

关 键 词：同步逆变器 虚拟同步发电机算法 虚拟原动机调节 虚拟励磁电流调节 

分 类 号：TG434.1[金属学及工艺—焊接]