基于晶闸管变流器的新型双闭环控制策略  

A novel dual-loop control strategy based on the thyristor converter

作　　者：杜庆楠[1] 李坡 Du Qingnan;Li Po(College of Electrical Engineering and Automation, 14enan Polytechnic University, Jiaozuo 454000, Henan, China)

机构地区：[1]河南理工大学电气工程与自动化学院,焦作454000

出　　处：《现代制造工程》2018年第4期148-152,共5页Modern Manufacturing Engineering

摘　　要：为了降低成本、改善调速系统的闭环特性,提出了在晶闸管为变流器件下的一种新型双闭环控制策略。在转速反馈闭环控制的基础上,引入有功电流环,通过频率、电压两个变量的协调控制来实现双闭环调速。分析电动机有功电流特性,根据实验数据,通过拟合得到转差与有功电流的关系。并由双变量交-交变频的特点,在充分利用电动机的过载能力的条件下,确定调速方案。通过Matlab软件仿真和ARM驱动实验,验证了交-交变频双闭环调速方案的可行性和有效性。With the purpose of reducing costs and improving the properties of the closed-loop speed control system, presents a new dual-loop control strategy based on the thyristor converter. The added active current closed loop on the basis of feedback loop speed control,by frequency, voltage coordinated control to achieve double-loop speed control. Analysis of motor active current characteristics according to the experimental data, obtained by fitting the slip and active current relationship. By bivariate aherna- ting conversion frequency characteristics,in making full use of the motor overload conditions, determine speed program. Simula- tions with Matlab and experiment results with ARM, are presented to verify the feasibility and effectiveness of alternating conver- sion frequency dual-loop speed control program.

关 键 词：晶闸管 变流器 有功电流 双闭环控制 

分 类 号：TM921[电气工程—电力电子与电力传动]