JPS6096997U

JPS6096997U - Maximum rotation speed control device for series-wound commutator motor

Info

Publication number: JPS6096997U
Application number: JP1983189530U
Authority: JP
Inventors: 宏林; 滋田中; 東山　重和
Original assignee: 神鋼電機株式会社
Priority date: 1983-12-07
Filing date: 1983-12-07
Publication date: 1985-07-02

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

図面は、第１図が負荷−回転数特性図、第２図が電源電
圧をパラメータとした第１図と同様の負荷−回転数特性
図、第３図が実施例のブロック線図、第４図が他の実施
例のブロック線図である。１・・・直巻整流子電動機電機子巻線、２・・・直巻整
流子電動機界磁巻線、３・・・交流電源、４・・・半導
体制御素子、５・・・位相制御回路、６・・・移相器、
７・・・電流指令用関数発生器、８・・・電源電圧指令
用関数発生器、９・・・比較器。In the drawings, Fig. 1 is a load-rotational speed characteristic diagram, Fig. 2 is a load-rotational speed characteristic diagram similar to Fig. 1 with power supply voltage as a parameter, Fig. 3 is a block diagram of the embodiment, and Fig. 4 is a diagram showing a load-rotational speed characteristic diagram. The figure is a block diagram of another embodiment. DESCRIPTION OF SYMBOLS 1... Series commutator motor armature winding, 2... Series commutator motor field winding, 3... AC power supply, 4... Semiconductor control element, 5... Phase control circuit. , 6... phase shifter,
7... Function generator for current command, 8... Function generator for power supply voltage command, 9... Comparator.

Claims

[Scope of utility model registration request]

In a maximum rotational speed suppressing device for a series commutator motor, which applies a motor voltage from a commercial frequency tributary power source via a semiconductor control element and controls its phase to suppress the maximum rotational speed of the motor to a specified command value or less. , a function generator that expresses the relationship between AC power supply voltage and motor current at the maximum rotation speed, and uses the AC power supply voltage as input to this function generator, outputs the corresponding minimum motor current command, and calculates the actual motor current stop magnitude. or conversely, a comparator that uses the motor current as the function generator input, outputs the corresponding maximum AC power supply voltage command, and determines the magnitude from the actual power supply voltage, and a comparator that determines the magnitude of the output of this comparator. 1. A maximum rotational speed suppressing device for a series-wound commutator motor, comprising: a phase shifter that determines whether or not to perform phase control of a semiconductor control element based on the phase shifter.