JPH04127801A - Protective device of controller for electric rolling stock - Google Patents

Protective device of controller for electric rolling stock

Info

Publication number
JPH04127801A
JPH04127801A JP24701490A JP24701490A JPH04127801A JP H04127801 A JPH04127801 A JP H04127801A JP 24701490 A JP24701490 A JP 24701490A JP 24701490 A JP24701490 A JP 24701490A JP H04127801 A JPH04127801 A JP H04127801A
Authority
JP
Japan
Prior art keywords
thyristor
overvoltage suppression
abnormality
overvoltage
overvoltage suppressing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP24701490A
Other languages
Japanese (ja)
Inventor
Ikuo Shimojo
下条　郁雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP24701490A priority Critical patent/JPH04127801A/en
Publication of JPH04127801A publication Critical patent/JPH04127801A/en
Pending legal-status Critical Current

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  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

PURPOSE:To prevent an overvoltage suppressing resistor from being burnt by turning a GTO thyristor forcibly OFF upon detection of an abnormality in which a power supply circuit breaker disposed between a stringing and a controller does not open after turn ON of the overvoltage suppressing GTO thyristor. CONSTITUTION:A main motor 6 is connected in series with a chopper controller 7 and DC power is taken in from a stringing 1 through a power supply circuit breaker 2. Upon occurrence of abnormality in the system, a protective detector 12 functions to open a power supply circuit breaker 2 through a driving circuit 13. At the same time. an ON pulse generating section 9 provides an ON pulse to an overvoltage suppressing GTO thyristor 4 thus discharging a filter capacitor 5 through an overvoltage suppressing resistor 3. Upon detection 11 of a fact that the circuit breaker 2 does not open even if the thyristor 4 is turned ON due to some abnormality, an OFF pulse generating section 10 turns the thyristor 4 OFF forcibly. According to the constitution, the overvoltage suppressing resistor 3 is protected from burning due to the current fed from the stringing 1.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、電圧車制御装置に係り、特に、電源しゃ断器
及びその駆動回路の異常時の保護として好適な装置に関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a voltage vehicle control device, and particularly to a device suitable for protecting a power breaker and its drive circuit in the event of an abnormality.

〔従来の技術〕[Conventional technology]

電気車用制御装置において、故障が発生し、主回路に印
加される電圧の上昇する場合や、主回路制御用サイリス
タ素子に異常なパルスが発生する場合は、電源しゃ断器
を開き、架線゛と制御装置を切り放すとともに、過電圧
抑制サイリスタをオンし、フィル゛タコンデンサ電圧を
放電し、主回路制御用サイリスタ素子の破壊を防止する
。If a failure occurs in the electric vehicle control device and the voltage applied to the main circuit increases, or if an abnormal pulse is generated in the main circuit control thyristor element, open the power breaker and disconnect the overhead line. At the same time as disconnecting the control device, the overvoltage suppression thyristor is turned on to discharge the filter capacitor voltage and prevent the main circuit control thyristor element from being destroyed.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上記従来技術は、過電圧抑制サイリスタがオンした後、
電源しゃ断器がオフしない異常現象の保護については考
慮されておらず、この異常時は、過電圧抑制サイリスタ
に直列接続された過電圧抑制抵抗に、架線から電流が流
れ続け、過電圧抑制抵抗を、加熱、焼損させる問題があ
った。In the above conventional technology, after the overvoltage suppression thyristor is turned on,
No consideration has been given to protection against abnormal phenomena in which the power breaker does not turn off. In this abnormal situation, current continues to flow from the overhead wire to the overvoltage suppression resistor connected in series with the overvoltage suppression thyristor, causing the overvoltage suppression resistance to heat up, There was a problem with it burning out.

本発明の目的は、電源しゃ断器及びその駆動回路に異常
があった場合、過電圧抑制サイリスタを強制オフし、過
電圧抑制抵抗の焼損を防止することにある。An object of the present invention is to forcibly turn off an overvoltage suppression thyristor to prevent burnout of an overvoltage suppression resistor when there is an abnormality in a power breaker and its drive circuit.

〔課題を解決するための手段〕[Means to solve the problem]

上記目的を達成するために、本発明は過電圧抑制サイリ
スタの状態と、電源しゃ断器の状態を検出する回路を設
け、過電圧抑制サイリスタをオンした後、電源しゃ断器
の状態に異常があった時に、過電圧抑制サイリスタを強
制オフするようにしたものである。In order to achieve the above object, the present invention provides a circuit that detects the state of the overvoltage suppression thyristor and the state of the power breaker, and when there is an abnormality in the state of the power breaker after the overvoltage suppression thyristor is turned on. The overvoltage suppression thyristor is forcibly turned off.

〔作用〕[Effect]

過電圧抑制サイリスタの状態と、電源しゃ断器の状態を
監視し、過電圧抑制サイリスタがオンした後、一定時間
内に電源しゃ断器が開らかない場合、オンしている過電
圧抑制サイリスタを強制オフする。The state of the overvoltage suppression thyristor and the power breaker are monitored, and if the power breaker does not open within a certain period of time after the overvoltage suppression thyristor is turned on, the on-on overvoltage suppression thyristor is forcibly turned off.

それによって、過電圧抑制サイリスタ、及び、過電圧抑
制抵抗に、架線から電流が流れつづける場合は、過電圧
抑制サイリスタがオフし、過電圧抑制抵抗にも電流が流
九なくなるので、過電圧抑制抵抗の焼損を防止できる。As a result, if current continues to flow from the overhead wire to the overvoltage suppression thyristor and overvoltage suppression resistor, the overvoltage suppression thyristor will be turned off and no current will flow to the overvoltage suppression resistance, thereby preventing burnout of the overvoltage suppression resistance. .

〔実施例〕〔Example〕

以下、本発明の実施例を第１図により説明する。 Embodiments of the present invention will be described below with reference to FIG.

主電動機６と、主電動機６の電流を制御する装！７は、
電源しゃ断器２によって架線１との接続及び開放が行な
われる。The main motor 6 and the device that controls the current of the main motor 6! 7 is
A power circuit breaker 2 connects and disconnects the overhead line 1 .

また、主電動機６と制御装置７に印加する電圧を安定化
するためフィルタコンデンサ５が並列に接続されている
。Further, a filter capacitor 5 is connected in parallel to stabilize the voltage applied to the main motor 6 and the control device 7.

装置及び回路に異常が発生した場合、保護検出器１２が
検出し、駆動回路１３が電源しゃ断器２を開放する。ま
た、同時に、オンパルス発生部９が、過電圧抑制サイリ
スタ４にオンパルスを与え、フィルタコンデンサ５の電
圧を過電圧抑制抵抗３に放電させる。If an abnormality occurs in the device or circuit, the protection detector 12 detects it, and the drive circuit 13 opens the power breaker 2. At the same time, the on-pulse generator 9 gives an on-pulse to the overvoltage suppression thyristor 4 to discharge the voltage of the filter capacitor 5 to the overvoltage suppression resistor 3.

本発明では、この他に、電源しゃ断器２の状態を観測す
る検出部１１と、過電圧抑制サイリスタ４を強制オフす
るためのオフパルス発生部１０を設けた。In the present invention, in addition to this, a detection section 11 for observing the state of the power breaker 2 and an off-pulse generation section 10 for forcibly turning off the overvoltage suppression thyristor 4 are provided.

オフパルス発生部１０は、過電圧抑制サイリスタ４にオ
ンパルスが与えられ、ＤＣＰＴ１６で、検出される過電
圧抑制サイリスタ４の印加電圧が無くなった後、一定時
間以内に、検出部１１が電源しゃ断器２の開放を検出し
ない場合、過電圧抑制サイリスタ４にオフパルスを与え
る。The off-pulse generation section 10 causes the detection section 11 to open the power breaker 2 within a certain period of time after the on-pulse is given to the overvoltage suppression thyristor 4 and the voltage applied to the overvoltage suppression thyristor 4 detected by the DCPT 16 disappears. If not detected, an off pulse is given to the overvoltage suppression thyristor 4.

本実施例によれば、電源しゃ断器２及び、駆動回路１３
に異常があり、過電圧抑制サイリスタ４がオンした後に
、電源しゃ断器２が開かない場合は、過電圧抑制サイリ
スタ４を、強制オフするので、架線から、過電圧抑制抵
抗３に電流が流れ続けることを防ぐ効果がある。According to this embodiment, the power breaker 2 and the drive circuit 13
If there is an abnormality and the power breaker 2 does not open after the overvoltage suppression thyristor 4 is turned on, the overvoltage suppression thyristor 4 is forcibly turned off, thereby preventing current from continuing to flow from the overhead line to the overvoltage suppression resistor 3. effective.

第２図では過電圧抑制サイリスタ４がオンした後の電源
しゃ断器２の状態をＤＣＣＴ１７で検出する方式である
。In FIG. 2, the DCCT 17 detects the state of the power supply breaker 2 after the overvoltage suppressing thyristor 4 is turned on.

過電圧抑制サイリスタ４がオンした後、電源しゃ断器２
が開かない場合、ＤＣＣＴ１７に電流が、流れ続けるた
め、ＤＣＣＴ１７に一定時間以上、電流が流れているこ
とを検出して、過電圧抑制サイリスタ４にオフパルスを
与えれば、第１図と同じ効果がある。After the overvoltage suppression thyristor 4 turns on, the power breaker 2
If the DCCT 17 does not open, the current continues to flow through the DCCT 17. Therefore, if it is detected that the current is flowing through the DCCT 17 for a certain period of time or more and an off pulse is applied to the overvoltage suppression thyristor 4, the same effect as in FIG. 1 can be obtained.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、過電圧抑制サイリスタがオンした後、
電源しゃ断器が開かない場合でも、過電圧抑制抵抗に架
線から電流が流れ続けることがないので、過電圧抑制抵
抗の焼損を防ぐことができる。According to the present invention, after the overvoltage suppression thyristor is turned on,
Even if the power breaker does not open, current will not continue to flow from the overhead wire to the overvoltage suppression resistor, thereby preventing the overvoltage suppression resistor from burning out.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図、第２図は、本発明の異なる実施例の回路ブロッ
ク図である。 １・・架線、２・・・電源しゃ断器、３・・・過電圧抑
制抵抗、４・・・過電圧抑制サイリスタ、５・・・フィ
ルタ・コンデンサ、６・・・主電動機、７・・・チョッ
パ制御装置、８・・・ゲート制御装置、９・・・オンパ
ルス発生部、１０・・・オフパルス発生部、１１・・・
電源しゃ断器異常検出部、１２・・・保護検出部、１３
・・・電源しゃ断器駆動回路、１４・・・パンタグラフ
、１５・・・フィルタリアクトル、１６・・・フィルタ
コンデンサ電圧検出用ＤＣＰＴ、１７・・・ＤＣＣＴ、
１８・・・ＤＣＣＴ第 区 第　２ 図1 and 2 are circuit block diagrams of different embodiments of the present invention. 1... Overhead line, 2... Power breaker, 3... Overvoltage suppression resistor, 4... Overvoltage suppression thyristor, 5... Filter capacitor, 6... Main motor, 7... Chopper control Device, 8... Gate control device, 9... On-pulse generation section, 10... Off-pulse generation section, 11...
Power breaker abnormality detection unit, 12... protection detection unit, 13
...Power breaker drive circuit, 14...Pantograph, 15...Filter reactor, 16...DCPT for filter capacitor voltage detection, 17...DCCT,
18...DCCT District 2 Diagram

Claims (1)

【特許請求の範囲】[Claims] １、過電圧抑制サイリスタとして、ＧＴＯサイリスタ素
子を用いた電気車用制御装置において、、過電圧抑制サ
イリスタのオン、オフ状態と、架線と制御装置との間に
設けた電源しや断器の状態を検知する装置を設け、前記
過電圧抑制サイリスタがオンした後に、前記電源しや断
器が開かない異常が、検知された場合、前記過電圧抑制
サイリスタを強制オフすることを特徴とする電圧車制御
装置の保護装置。1. In an electric vehicle control device that uses a GTO thyristor element as an overvoltage suppression thyristor, detects the on/off state of the overvoltage suppression thyristor and the state of a power source or disconnector installed between the overhead wire and the control device. protection of a voltage vehicle control device, comprising: a device for forcibly turning off the overvoltage suppressing thyristor if an abnormality in which the power source or disconnector does not open after the overvoltage suppressing thyristor is turned on is detected; Device.
JP24701490A 1990-09-19 1990-09-19 Protective device of controller for electric rolling stock Pending JPH04127801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24701490A JPH04127801A (en) 1990-09-19 1990-09-19 Protective device of controller for electric rolling stock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24701490A JPH04127801A (en) 1990-09-19 1990-09-19 Protective device of controller for electric rolling stock

Publications (1)

Publication Number Publication Date
JPH04127801A true JPH04127801A (en) 1992-04-28

Family

ID=17157114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24701490A Pending JPH04127801A (en) 1990-09-19 1990-09-19 Protective device of controller for electric rolling stock

Country Status (1)

Country Link
JP (1) JPH04127801A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1299927C (en) * 2003-12-29 2007-02-14 泛亚汽车技术中心有限公司 High-voltage DC insulating monitoring circuit for electric automobile
WO2010101032A1 (en) * 2009-03-03 2010-09-10 日立オートモティブシステムズ株式会社 Power converter
JP2010259300A (en) * 2009-04-28 2010-11-11 Toshiba Corp Device for control of electric rolling stock, and method of testing the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1299927C (en) * 2003-12-29 2007-02-14 泛亚汽车技术中心有限公司 High-voltage DC insulating monitoring circuit for electric automobile
WO2010101032A1 (en) * 2009-03-03 2010-09-10 日立オートモティブシステムズ株式会社 Power converter
JP2010206909A (en) * 2009-03-03 2010-09-16 Hitachi Automotive Systems Ltd Power conversion apparatus
EP2405565A1 (en) * 2009-03-03 2012-01-11 Hitachi Automotive Systems, Ltd. Power converter
CN102326327A (en) * 2009-03-03 2012-01-18 日立汽车***株式会社 Power-converting device
EP2405565A4 (en) * 2009-03-03 2013-07-24 Hitachi Automotive Systems Ltd Power converter
US8791681B2 (en) 2009-03-03 2014-07-29 Hitachi Automotive Systems, Ltd. Electric power conversion system
JP2010259300A (en) * 2009-04-28 2010-11-11 Toshiba Corp Device for control of electric rolling stock, and method of testing the same

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