JPS59209002A - Controller for electric railcar - Google Patents

Abstract

PURPOSE:To enable to operate an electric railcar without being brought to a standstill by power driving the railcar at an emergency power drive time only while a starting resistor is inserted to an armature circuit. CONSTITUTION:When a defect occurs so that a relay 16 is energized by a chopper open command, an operation coil 10c is deenergized, and an operation coil 11c is energized. Thus, a chopper 12 is disconnected from a shunt field circuit, and a series resistor 13 is connected. Then, operation coils 2c, 5c are energized, current disconnecting switches 2, 5 are closed, and an electric railcar is advanced to a final step of a resistor shortcircuit. Since a cam shaft auxiliary contact 17 is closed when reaching the final step, a slow timer 18 is energized, an open relay 19 is energized after the lapse of the prescribed time, the coils 2c, 5c are deenergized, and a power drive circuit is broken.

Description

【発明の詳細な説明】 本発明は電気車制御装置に関し、特に分巻界磁巻線と直
列接続された界磁チョッパ装置を備えた電気車制御装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric vehicle control device, and more particularly to an electric vehicle control device including a field chopper device connected in series with a shunt field winding.

第１図は界磁チョッパ装置を備えた従来からの一般的な
電気車の主電動機回路を示すブロック図で、／はパンタ
グラフ、コは電機子回路用の断流器、３は主電動機、グ
は起動抵抗器、Ｓは界磁チ１ソバ回路用の断流器、乙は
フィルタリアクトル、？　＋：ｒ、分巻界磁巻線、ｇ　
ｔ、［フリーホイーリング（還流）ダイオード、９はフ
ィルタコンデンツ、ＩＯ及び／／はチョッパ開放器、７
．２はチョッパ装置、そして／３はＷ４列抵抗器、であ
る。尚、チョッパ開放器１０及び／／は、正常時、それ
ぞれ閉及び開状態になっており、チョッパ開放時等の異
常時に逆の状態を呈ずろ。Figure 1 is a block diagram showing the main motor circuit of a conventional general electric vehicle equipped with a field chopper device. is the starting resistor, S is the current breaker for the field circuit, O is the filter reactor, ? +: r, shunt field winding, g
t, [freewheeling diode, 9 is filter content, IO and/or chopper opener, 7
．． 2 is a chopper device, and /3 is a W4 column resistor. Note that the chopper opener 10 and/or are in a closed and open state, respectively, under normal conditions, and do not exhibit the opposite state when an abnormality occurs, such as when the chopper is opened.

今、電気車が正常運転状態にあるとずれば、−ヒ述のと
おりチョッパ開放器／θが閉じ、開放器／ｌが開いてい
るので、分巻界磁電流はチョッパ装置鰺 ７．２によって制御され、第一図に示される特性曲線に
沿って電気車はカ行運転されろ。即ち、第２図は界磁チ
ョッパ正常時の特性ノツチ曲線で縦軸に速度（Ｖ）、横
軸に、電機子電流（Ｉａ）　、が目盛られている。梠軸
中、−［−櫨はカ行側電流、−Ｉ。は回生側電流を表わ
す。Now, assuming that the electric car is in normal operating condition, the chopper opener/θ is closed and the opener/l is open as described in (b), so the shunt field current is transmitted by the chopper device 7.2. The electric car is controlled and driven along the characteristic curve shown in Figure 1. That is, FIG. 2 shows a characteristic notch curve when the field chopper is normal, and the vertical axis is the speed (V), and the horizontal axis is the armature current (Ia). -[-櫨 is the current on the negative side, -I. represents the regenerative side current.

第１Ｎｊ及び第２図において、断流器コ及びＳを投入す
ると主電機電機子回路には起動抵抗器ダにより制限され
た電流へが流れ、分巻界磁回路にはチョッパ装置／−１
により制御された界磁電流が流れ、電気車はカ行運転さ
れる。電機予電Ｉａは起動抵抗器グによって制限される
が、成る一定値Ｉａ、に減少すると起動抵抗器グを順次
短絡して行（ように制御すれば、電機子電流Ｉａに対し
速度Ｍは第２図の抵抗進段ステップ／グの矢印に従って
上昇する。そして最終的には起動抵抗器グを経て短終し
た特定曲線／左になって更に速度は上昇する。In No. 1 Nj and Fig. 2, when the current interrupters Ko and S are turned on, the current limited by the starting resistor Da flows into the main electric machine armature circuit, and the chopper device /-1 flows into the shunt field circuit.
A controlled field current flows, and the electric car is driven in full force. The electric machine preload Ia is limited by the starting resistor G, but when it decreases to a constant value Ia, the starting resistor G is successively short-circuited and the speed M becomes The speed increases according to the arrow of the resistance advancement step/g in Figure 2.Finally, the speed increases further as it passes through the starting resistor and reaches a short-terminated specific curve/to the left.

このように電機子電流１ａが変化するとき、分巻界磁電
流をチョッパ装置７．２により、電機子電流Ｉａに比例
して制御すると、第１図に示される如く複巻電動機であ
りながら石巻電動機の特性が得られ、従来の電気車の直
流１ｈ巻電動機と同じ特性を得ることができろ。When the armature current 1a changes in this way, if the shunt field current is controlled by the chopper device 7.2 in proportion to the armature current Ia, as shown in FIG. It should be possible to obtain the same characteristics as a DC 1-hour winding motor for a conventional electric car.

また！時性曲線／Ｓは、電機子１ｂ７流Ｉａが減少する
とチョッパ装置７．２によって分巻界磁電流も減少させ
るので第２図の如く直巻電動機特性と／Ｊ、す、電機子
電流Ｉａが減少しながら速ＩＢｊ　Ｍが上昇するだけで
、回生電流−Ｉａとなることはない。更に、このとき急
激な架線箱１圧低下があると主電動機３の誘起電圧が架
線電圧より茜（なり電機子電流Ｉａは急（′；ｌに減少
し回生電流−Ｉａになろうとするが、チョッパ装置７．
２が分巻界磁電流を減少させるので主′ｄＬ動機電圧が
下がって回生電流−ＩａＫなることはない。このように
、界磁チョッパ動作が正常な時は、チョッパ装置／２の
制御により電機子電流は負、即ち回生側になら１−安定
したカ行運転が達成できろ。Also! When the armature 1b7 flow Ia decreases, the chopper device 7.2 also reduces the shunt field current, so the time curve /S shows that the series motor characteristics and the armature current Ia change as shown in Figure 2. The speed IBj M only increases while decreasing, and the regenerative current -Ia does not become the same. Furthermore, at this time, if there is a sudden drop in the voltage in the overhead line box, the induced voltage of the main motor 3 becomes higher than the overhead line voltage, and the armature current Ia suddenly decreases to ('; l and becomes the regenerative current -Ia. Chopper device7.
2 reduces the shunt field current, so the main 'dL motor voltage does not drop and the regenerative current -IaK does not occur. In this manner, when the field chopper operates normally, if the armature current is negative, that is, on the regenerative side, under the control of the chopper device/2, stable forward operation can be achieved.

次に↑ｈ：磁チョッパ動作に故障が生じた場合について
考える。Next, consider the case where ↑h: a failure occurs in the magnetic chopper operation.

チョッパ装置／２が故障するとカ行運転不可能と／ｆ４
）ので電気車は立往生してしまい運転ダイヤも混乱する
ので第１図のようにチョッパ開放器１０及び／／を設け
、開放器１０を開、開放器／／を閉にするごとによりカ
行運転を続行可能にする対策が講じられている。即ち、
この場合、断流器コ及びＳを投入すると、分巻界磁回路
には直列抵抗器／３によって制限された一定の分巻界磁
電流が流れろ。If the chopper device /2 breaks down, it will be impossible to drive /f4
), the electric cars will get stuck and the operating schedule will be disrupted, so a chopper opener 10 and // are installed as shown in Figure 1, and each time the opener 10 is opened and the opener // is closed, the electric car is operated Measures have been taken to allow this to continue. That is,
In this case, when the current interrupters C and S are turned on, a constant shunt field current limited by the series resistor /3 flows in the shunt field circuit.

このような回路構成では、特性は第３図の如く複ＩＣ！
１．電動機特性となる。即ち、第２図と同様（Ｃ１抵抗
進段ステップ／ｌ／を経て最終的に起ＩＩ；ｌ、抵抗器
ヶが短絡されたｔ面性曲線／、りを１５え、第一図の直
巻電動機特性に比べ横軸Ｋ、より平行したものとなって
いる。In such a circuit configuration, the characteristics are as shown in Figure 3, which is similar to that of multiple ICs!
1. This is a characteristic of the electric motor. That is, as in Fig. 2 (after C1 resistor advancement step /l/, the final result is II; l, the t-plane curve / with the resistor short-circuited; The horizontal axis K is more parallel to the electric motor characteristics.

第２図及び第３財１の縦１）１１は速度（ｖ＋を表わす
が、速度とともに主電動機３の端子電圧も表わしている
。従って、第３図における起動抵抗器ヶの抵抗値が零で
ある特性曲線／Ｓは主’ｒ［ｉ；　１ｉｉｊ機３の端子
電圧、即ち架線電圧を示していることとなり、架線電圧
か変動すると電機子電流Ｉａが太さく変動することが理
解できる。よってチョッパ開放時、起動抵抗器グが短絡
された特性曲線／Ｓで長時間走行すると架線電圧変動の
影響を受け、電機子電流Ｉａは急激な変動を来たし、場
合によっては過７（ｊ、流に至ったり、或いはカ行電流
が回生電流に急変する時、電気ルの運転に不都合が生じ
ていた。Vertical 1) 11 in Figures 2 and 3 represents the speed (v+), but it also represents the terminal voltage of the main motor 3 along with the speed. Therefore, the resistance value of the starting resistor in Figure 3 is zero. A certain characteristic curve /S shows the terminal voltage of the main 'r[i; When running for a long time with the characteristic curve /S with the starting resistor G short-circuited when it is open, it will be affected by overhead line voltage fluctuations, and the armature current Ia will fluctuate rapidly, and in some cases, the armature current Ia will fluctuate rapidly. Or, when the current suddenly changes to the regenerative current, problems occur in the operation of the electric generator.

本発明は斯かる従来技術の欠点を解消することを目的と
してなされたもので、該目的を達成するため、本発明に
係る電気車制御装置は、主電動機及びこれに直列の起動
抵抗器と直列接続された第１断流器−分巻界磁巻線に直
列接続された第２断流器；前記分巻界磁巻線に直列のチ
ョッパ装置に直列接続された第１チョッパ開放器；該第
１チヨツパ開放器と前記チョッパ装置との直列回路に並
列接続された直列抵抗器と第λチョッパ開放器との直列
回路；及び、チョッパ開放指令が発せられたとき前記第
１チヨツパ開放器を開くとともに前記第λチョッパ開放
器を閉じ、更に前記第１及び第ユ断流器を閉じ、その後
、抵抗短絡最終ステップ迄進段したことを検知したとき
、それから所定時間後に前記第１及び第２断流器を開く
制御回路：を備えたことを特徴とする構成を有している
。ここで、前記制御回路は、前記チョッパ開放指令によ
り励磁される第１継電器と、該第１継電器が励磁された
とき、前記第１継電器の常閉接点により前記第１チヨツ
パ開放器を開く第１操作コイル及び前記第１継電器の常
開接点により前記第２チヨツパ開放器を閉じる第２操作
コイルと、前記常開接点に直列接続され前記抵抗短絡最
終ステップ迄進段したとき閉じるカム軸補助接点と、該
カム軸補助接点に直列接続された緩動タイマと、該緩動
タイマに直列接続された開放リレーと、該開放リレーが
励磁されたとき該開放リレーの常閉接点により前記第７
及び第コ断流器を開放する第１及び第λ断流器リレーと
、を含んでいることが好ましく１゜ 以下、本発明に係る電気車制御装置の好ましい実施例に
沿って本発明を説明する。The present invention has been made for the purpose of eliminating the drawbacks of the prior art, and in order to achieve the purpose, an electric vehicle control device according to the present invention has a traction motor and a starting resistor connected in series with the traction motor. a first current interrupter connected to the shunt field winding; a second current interrupter connected in series to the shunt field winding; a first chopper opener connected in series to the chopper device in series with the shunt field winding; A series circuit consisting of a series resistor connected in parallel to a series circuit of a first chopper opener and the chopper device and a λ chopper opener; and opening the first chopper opener when a chopper open command is issued. At the same time, the λ chopper opener is closed, and the first and second flow breakers are further closed. Then, when it is detected that the stage has progressed to the resistor short circuit final step, the first and second flow breakers are opened after a predetermined time. It has a configuration characterized by comprising: a control circuit for opening the flow container. Here, the control circuit includes a first relay that is energized by the chopper opening command, and a first relay that opens the first chopper opener by a normally closed contact of the first relay when the first relay is energized. a second operating coil that closes the second chopper opener by means of an operating coil and a normally open contact of the first relay; and a camshaft auxiliary contact that is connected in series with the normally open contact and closes when the stage advances to the resistor short circuit final step. , a slow-motion timer connected in series to the camshaft auxiliary contact, an opening relay connected in series to the slow-motion timer, and when the opening relay is energized, the normally closed contact of the opening relay causes the seventh
and a first and a λ-th current breaker relay for opening the 1st current breaker. do.

第を図は、第１図の界磁チョッパ主回路を制御するため
の装置を示しており、図中、ＩＡはチョッパ開放指令に
より動作する継電器で常開接点／Ａａ７及び常閉接点／
４ｂと組み合わされたもの、／７は電気車のカム軸の抵
−抗短絡最終ステップを検知するカム軸補助接点で常開
接点／ｌ、ａ／と直列接続されたもの、ｉｇはカム軸補
助接点／７と直列接続された緩動（遅延作動）タイマ、
そして／ｑは緩動タイマ／ｇと直列接続され、常閉接点
／９ｂと組み合わされた開放リレーである。尚１．２ｃ
及びＳ−Ｃは１、それぞれ断流器コ及びＳと組み合わさ
れた操作コイルであり、／Ｉ’７（・及び／／Ｃはそれ
ぞれチョッパ開放器１０及び／／と組み合わされた操作
コイルである。操作コイル／／Ｃば、カム軸補助接点／
７と緩動タイマ／ｇと開放リレー／９との直列回路に並
列接続されており、操作コイルｌＯｃ＆ｉ常閉接点／６
ｂとともに、操作コイル／／Ｃと常開接点／　／、ａ／
との直列回路に並列接続されている。また操作コイルノ
Ｃ及び！ｉＣは共に常閉接点／９ｂと直列接続されてい
る。Figure 1 shows a device for controlling the main circuit of the field chopper in Figure 1. In the figure, IA is a relay operated by a chopper opening command, with a normally open contact /Aa7 and a normally closed contact /Aa7.
4b, /7 is the camshaft auxiliary contact that detects the final step of resistance short circuit of the camshaft of the electric vehicle, connected in series with the normally open contacts /l and a/, ig is the camshaft auxiliary contact. A slow-acting (delay-acting) timer connected in series with contact /7,
And /q is an open relay connected in series with slow-motion timer /g and combined with normally closed contact /9b. In addition, 1.2c
and S-C are operating coils combined with 1 and S, respectively, and /I'7 (. and //C are operating coils combined with chopper opener 10 and //, respectively. .Operation coil//C, camshaft auxiliary contact/
It is connected in parallel to the series circuit of 7, slow motion timer/g, and open relay/9, and the operating coil lOc&i normally closed contact/6
With b, operating coil //C and normally open contact / /, a/
are connected in parallel in a series circuit with. Also, operate the coil C and! Both iC and the normally closed contact /9b are connected in series.

今、故障が生じてチョッパ開放指令により継電器／乙が
励磁されろと、常閉接点／Ａｔ）及び常開接点／４ａ／
を介して操作コイル／θＣを消磁するとどもに操作コイ
ル／／ｃを励磁するのでチョッパ装置／コは分巻界磁回
路から切り離され、その代わりに直列抵抗器／３が接続
される。次に操作コイルユ、Ｃ及び５ｃが励磁されて、
第１図の断流器コ及びＳが投入されろと電気車は上述し
た如く第３図の特性に従って特性曲線１５、即ち抵抗短
絡最終ステップまで進段する。最終ステップに達すると
カム軸補助接点／りが閉じるので緩動タイマ／ｇが励磁
される。緩動タイマ／ｇは励磁開始から所定時間経過後
に閉じて開放リレー／′？を励磁する。従って、これに
より常閉接点／？ｂが開いて操作コイル２ｃ及び、Ｓ−
Ｃを消磁し以て断流器λ及び夕を開き、電気車の電機子
回路及び分巻界磁回路を開いてカ行回路がしゃ断される
。このように動作することにより第３図の特性曲線／左
に晒される時間を緩動タイマ／ｇの短かい遅延時間に制
限して主電機回路が過電流状態にならないようにし、ま
た電機子電流Ｉａの急変を防ぐことができる。Now, when a failure occurs and relay/B is energized by chopper open command, normally closed contact/At) and normally open contact/4a/
Since the operating coil /θC is demagnetized and the operating coil //c is energized through the chopper device /θC, the chopper device /C is disconnected from the shunt field circuit, and the series resistor /3 is connected in its place. Next, the operating coil units C and 5c are energized,
When the circuit breakers C and S shown in FIG. 1 are turned on, the electric vehicle advances to the characteristic curve 15, ie, the final step of resistor short circuit, according to the characteristics shown in FIG. 3, as described above. When the final step is reached, the camshaft auxiliary contact/g closes, and the slow timer/g is energized. Slow timer /g closes and opens relay /'? after a predetermined time elapses from the start of excitation. Excite. Therefore, this results in a normally closed contact/? b opens, operating coil 2c and S-
By demagnetizing C, the circuit breakers λ and 2 are opened, the armature circuit and shunt field circuit of the electric car are opened, and the line circuit is cut off. By operating in this way, the time exposed to the characteristic curve/left in Figure 3 is limited to a short delay time of the slow timer/g, preventing the main electric circuit from entering an overcurrent state, and also reducing the armature current. Sudden changes in Ia can be prevented.

また、第グ図の点線で示すように、緩動タイマ／ｇの代
わりに継電器／６の常開接点／　ｔａ２を設け、カム軸
が最終ステップに達したとき、即座に開放リレー７９を
励磁するように構成してもよい。In addition, as shown by the dotted line in Fig. 1, a normally open contact /ta2 of relay /6 is provided in place of the slow-motion timer /g, and when the camshaft reaches the final step, the open relay 79 is immediately energized. It may be configured as follows.

以上、本発明によれば、俵巻特性による非常カ行時にお
いて電機子回路に起動抵抗器ケが挿入されている過渡安
定度の高い間だけカ行運転し、過渡安定度の悪い起動抵
抗零の状態で運転士が更にカ行を継続しようとしても回
路を自動的に切ることが出来、電気車は立往生すること
もな（運転でき、また主電動機も保詐されろという効果
が得られろ。As described above, according to the present invention, in the case of emergency power due to the double winding characteristic, the power is operated only during the period of high transient stability when the starting resistor is inserted in the armature circuit, and the starting resistance is zero due to poor transient stability. Even if the driver tries to continue driving in this state, the circuit can be automatically cut off, and the electric car will not be stranded. .

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

第１図はチョッパ開放器及び界磁チョッパ装置を備えた
従来からの一般的な電気車の主電動機回路図、第３図は
チョッパ動作正常時のカ行ノツチ曲線図、第３図はチョ
ッパ動作正常時にチョッパ装置を切り離し、分巻界磁電
流を一定にした場合のカ行ノツチ曲線図、そして第７図
は第１図の主電動機回路と組み合わされて本発明に係る
電気車制御装置を構成する制御回路図、である。 ユ、Ｓ・・断流器、３・・主電動機、ｔ・・起動抵抗器
、７・・分巻界磁巻線、１０．／／・・チョッパ開放器
、７．２・・チョッパ装置、／３・・重列抵抗器、／Ａ
・・枢電器、／Ａａ／、／乙す。 ／ｑｂ−・接点、／ｌ・・カム軸補助接点、７ｇ・・緩
動タイマ、／９・・開放リレー、りＣ９！；ｃ、１０ｃ
、／／ｃ・・操作コイルなお、各図中、同一符号は同−
又は和尚部分を示す。 代理人　　大　　岩　　増　　雄 幣１図 楚４図 １１？ｌ ＋し ８Figure 1 is a main motor circuit diagram of a conventional general electric vehicle equipped with a chopper opener and a field chopper device, Figure 3 is a row notch curve diagram when the chopper is operating normally, and Figure 3 is the chopper operation. FIG. 7 is a row notch curve diagram when the chopper device is disconnected during normal operation and the shunt field current is kept constant, and FIG. 7 shows an electric vehicle control device according to the present invention in combination with the main motor circuit shown in FIG. This is a control circuit diagram. Yu, S... Current interrupter, 3... Main motor, T... Starting resistor, 7... Shunt field winding, 10. //... Chopper opener, 7.2... Chopper device, /3... Multi-row resistor, /A
・・Cardinal electrical equipment, /Aa/, /Osu. /qb-・Contact, /l・・Camshaft auxiliary contact, 7g・・Slow motion timer, /9・・Opening relay, riC9! ;c, 10c
,//c...operating coil Note that the same reference numerals in each figure indicate the same -
Or it shows the priest part. Agent Masu Oiwa Yuhei 1 Figure Chu 4 Figure 11? l +shi8

Claims (1)

【特許請求の範囲】[Claims] （１）主電動機及びこれに直列の起動抵抗器と直列接続
された第１断流器；分巻界磁巻線忙直列接続された第コ
断流器；前記分巻界磁巻線に直列のチョッパ制御に直列
接続された第１チョッパ開放器；該第１チヨツパ開放器
と前記チョッパ装置との直列回路に並列接続された直列
抵抗器と第１チヨツパ開放器との直列回路：及び、チョ
ッパ開放指令が発せられたとき前記第１チヨツパ開放器
を開（とともに前記第２チヨツパ開放器を閉じ、更に前
記第１及び第コ断流器を閉じ、その後、抵抗λｊ絡最終
ステップ迄進段したことを検知したとき、それから所定
時間彼処前記第１及び第２断流器を開く制御回路：を備
えたことを特徴とする電気車制御装置。 （，２１Ｎｌ記制御回路は、前記チョッパ開放指令によ
り励磁される第１継電器と、該第１継電器が励磁された
とき、前記第１ｆａ電器の常閉接点により前記第１チヨ
ツパ開放器を開く第１操作コイル及び前記第１継電器の
常開接点九より前記第１チヨツパ開放器を閉じる第λ操
作コイルと、前記常開接点に直列接続され前記抵抗短路
最終スデッグ迄進段したとき閉じるカム軸補助接点と、
該カム軸補助接点に直列接続された緩動タイマと、該緩
動タイマに直列接続された開放リレーと、該開放リレー
が励磁されたとき該開放リレーの常閉接点により前記第
１及び第２断流器を開放する第１及び第λ断流器リレー
と、を含んでいろ特許請求の範囲第１項記載の電気車制
御装置。(1) A first current breaker connected in series with the main motor and a starting resistor connected in series with the main motor; a second current breaker connected in series with the shunt field winding; connected in series with the shunt field winding; a first chopper opener connected in series to a chopper control; a series circuit of a series resistor and a first chopper opener connected in parallel to a series circuit of the first chopper opener and the chopper device; and a chopper When the opening command was issued, the first chopper opener was opened (and the second chopper opener was closed, and the first and second cutoff switches were closed, and the stage was then advanced to the final step of connecting the resistor λj. An electric vehicle control device comprising: a control circuit that opens the first and second flow breakers for a predetermined period of time when the chopper opening command is detected. a first relay to be energized, a first operating coil that opens the first chopper opener by a normally closed contact of the first fa electric device, and a normally open contact 9 of the first relay when the first relay is energized; a λ-th operation coil that closes the first chopper opener; a camshaft auxiliary contact that is connected in series with the normally open contact and closes when the resistor short circuit advances to the final stage;
a slow-motion timer connected in series to the camshaft auxiliary contact; an open relay connected in series to the slow-motion timer; and when the open relay is energized, the normally closed contacts of the open relay The electric vehicle control device according to claim 1, further comprising a first and a λ-th current breaker relay for opening the current breaker.