JPS59195902U

JPS59195902U - electric car control device

Info

Publication number: JPS59195902U
Application number: JP9040383U
Authority: JP
Inventors: 真安田
Original assignee: 株式会社日立製作所
Priority date: 1983-06-15
Filing date: 1983-06-15
Publication date: 1984-12-26

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 drawings]

第１図は従来の電気車用チョッパ制御の回生ブレーキ時
の主回路接続回路図、第２図は従来のチョッパ制御保護
回路の一部を示す接続回路図、第３図は本考案の一実施
例のチョッパ制御上の保護回路接続回路図である。１９・・・高速度遮断器トリップコイル、２０・・・サ
イリスタ、２１・・・抵抗器、２２・・・コンデンサ、
２３・・・継電器コイル、２４・・・フィルタコンデン
サ電圧信号線、２５・・・比較器。Fig. 1 is a main circuit connection circuit diagram during regenerative braking of conventional chopper control for electric vehicles, Fig. 2 is a connection circuit diagram showing part of a conventional chopper control protection circuit, and Fig. 3 is an implementation of the present invention. It is a protection circuit connection circuit diagram on chopper control of an example. 19... High speed circuit breaker trip coil, 20... Thyristor, 21... Resistor, 22... Capacitor,
23... Relay coil, 24... Filter capacitor voltage signal line, 25... Comparator.

Claims

[Claims for Utility Model Registration] A chopper that controls the speed of a DC motor, a main smoothing reactor that smoothes the current flowing through the DC motor, a freewheel diode that circulates this current, a filter reactor that smoothes the contact line current, filter capacitor,
A circuit breaker that disconnects the main circuit from the overhead contact line, a DC transformer that detects the voltage of the filter capacitor, a DC transformer that detects chopper current, and a protection circuit that detects commutation failure and shuts off the high-speed circuit breaker. An electric vehicle with a regenerative brake, characterized in that the filter capacitor voltage drop detection relay has a control power drop detection function for the protection circuit that detects a commutation failure and shuts off the high-speed circuit breaker. Electric vehicle control device.