JPS59154429U

JPS59154429U - DC electric railway power supply device

Info

Publication number: JPS59154429U
Application number: JP1983049442U
Authority: JP
Inventors: 権藤　豊美
Original assignee: 株式会社明電舎
Priority date: 1983-04-01
Filing date: 1983-04-01
Publication date: 1984-10-17

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は電鉄用き電システムの概略構成図、第２図は変
電所２の出力電圧特性図、第３図は本考案の一実施例を
示す回路図、第４図ａは第１コンパレータ４０ａの出力
特性図、第４図すは第２コンパレータ４０ｂの出力特性
図、第５図は本考案による変電所の出力電圧特性図であ
る。２１・・・サイリスタ変換器、２３・・・回生力行切換
装置、２４ａ、２４ｂ・・・ダイオード、２５・・・直
流゛リアクトル、２６・・・直流正極母線、２７ａ〜２
７ｄ・・・サイリスタ遮断器、２８３〜−２８ｄ−直流
断路器、２９ａ、　２９ｂ−デッドセクション、３０ａ
〜３０ｄ・・・電車線路、３２３〜３２ｄ・・・回生用
ダイオード、３３・・・負極母線、３４ａ、３４ｂ・・
・Ｌ／−／ｌ／、３５ａ、　　３５ｂ−・サイリスクス
イッチ、３６−・・直流電圧検出器、３７ａ、　３７ｂ
−ＤＣ／ＤＣコンバータ、３８ａ、３８ｂ・・・つき合
わせ回路、３９ｉ・・・コンバータ電圧設定器、３９ｂ
・・・インバータ電圧設定器、４０ａ、４０ｂ・・・コ
ンパレータ、４１ａ、４１ｂ・・・電子スイッチ、４２
・・・電圧制御用増幅器、′４３・・・交流電圧検出器
、４４・・・整流器、４５・・・直流変法器、４６・・
・ゲート信号発生回路、４７・・・自動パルス移相回路
、４８・・・ゲート回路、４９・・・電気車。Figure 1 is a schematic configuration diagram of a power feeding system for electric railways, Figure 2 is an output voltage characteristic diagram of substation 2, Figure 3 is a circuit diagram showing an embodiment of the present invention, and Figure 4a is the first comparator. FIG. 4 is an output characteristic diagram of the second comparator 40b, and FIG. 5 is an output voltage characteristic diagram of the substation according to the present invention. 21... Thyristor converter, 23... Regenerative power running switching device, 24a, 24b... Diode, 25... DC reactor, 26... DC positive electrode bus, 27a-2
7d...Thyristor circuit breaker, 283 to -28d-DC disconnector, 29a, 29b-Dead section, 30a
~30d... Electric train track, 323~32d... Regeneration diode, 33... Negative electrode bus, 34a, 34b...
・L/-/l/, 35a, 35b-・Sirisk switch, 36-・DC voltage detector, 37a, 37b
-DC/DC converter, 38a, 38b... matching circuit, 39i... converter voltage setting device, 39b
...Inverter voltage setting device, 40a, 40b...Comparator, 41a, 41b...Electronic switch, 42
... Voltage control amplifier, '43... AC voltage detector, 44... Rectifier, 45... DC transformer, 46...
- Gate signal generation circuit, 47... automatic pulse phase shift circuit, 48... gate circuit, 49... electric car.

Claims

[Scope of utility model registration request]

A thyristor converter that is controlled to have both the functions of a forward converter and an inverse converter, and a regenerative power switching device that is provided between the DC side of the thyristor converter and the overhead contact line and that switches the function of the thyristor converter. a first comparator that compares the voltage of the overhead contact line with a preset voltage; and a first comparator that compares a preset current with a current flowing through a DC line connecting the thyristor converter and the overhead contact line. 2 comparators, the output of the second comparator is processed with priority over the output of the first comparator, and the thyristor converter is switched to a forward converter or an inverse converter according to the output of the second comparator. A DC electric railway power supply device that is characterized by: