Speed closed-loop control system based on general-purpose inverter

Author

Mingliang, Duan ; Meng Yanjing ; Deyu, Xu ; Jianbing, Huang

Author_Institution

Northwest Inst. of Light Ind., Xianyang, China

Volume

1

fYear

2001

fDate

2001

Firstpage

564

Abstract

General-purpose inverters have the characteristic of low price and convenient operation. But they often need a specialized feedback card when feedback closed-loop control is demanded. This results in high cost and limited range of application. This paper considers the problem from cost and precision of constant speed aspects. The authors deal with speed-measuring conversion using an external single-chip processor. Closed-loop speed control can then be achieved in two ways. One is to utilize the process-input port of the inverter and the other is external PID. Therefore the cost of system is cut down and the range of application is expanded

Keywords

AC motors; DC-AC power convertors; closed loop systems; feedback; invertors; machine control; velocity control; AC motor power supply; closed-loop speed control system; external PID; external singlechip processor; feedback; general-purpose inverter; process-input port; Control systems; Costs; Energy conversion; Feedback loop; Frequency; Hardware; Inverters; Open loop systems; Paper making machines; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on

Conference_Location

Shenyang

Print_ISBN

7-5062-5115-9

Type

conf

DOI

10.1109/ICEMS.2001.970738

Filename

970738