JPS6096996U

JPS6096996U - Maximum rotation speed control device for series-wound commutator motor

Info

Publication number: JPS6096996U
Application number: JP1983188989U
Authority: JP
Inventors: 宏林; 滋田中; 東山　重和
Original assignee: 神鋼電機株式会社
Priority date: 1983-12-06
Filing date: 1983-12-06
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図は負荷−回転数特性図、第２図が電源電
圧をパラメータとした界磁巻線電圧（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、ル・・位相制御回路、６・・・移相器、７
・・・界磁巻線電圧指令用関数発生器、８・・・比較器
、９・・・電源電圧指令用関数発生器。In the drawings, Fig. 1 is a load-rotation speed characteristic diagram, Fig. 2 is a field winding voltage (load)-rotation speed characteristic diagram with power supply voltage as a parameter, Fig. 3 is a block diagram of the embodiment, and Fig. FIG. 4 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, Le... Phase control circuit, 6... Phase shifter, 7
...Function generator for field winding voltage command, 8...Comparator, 9...Function generator for power supply voltage command.

Claims

[Scope of utility model registration request]

In a maximum rotational speed suppression device for a series commutator motor, which applies motor voltage from a commercial frequency AC power source through a semiconductor control element and controls the phase to suppress the maximum rotational speed of the motor to a specified command value or less. , a function generator representing the relationship between the AC power supply voltage and the field winding voltage, which gives the maximum rotation speed;
This function generator uses the AC power supply voltage as input, outputs the corresponding minimum field winding voltage command, and determines the magnitude of the detected field winding voltage, or conversely, uses the field winding voltage as the function generator input. A comparator that outputs the corresponding maximum AC power supply voltage command and determines the magnitude of the detected power supply voltage, and a transfer that determines whether phase control of the semiconductor control element is to be performed based on the magnitude determination result of the comparator output. A maximum rotational speed suppressing device for a series-wound commutator motor, characterized by comprising a phase resistor.