JPS5959074A - Chopper device - Google Patents
Chopper deviceInfo
- Publication number
- JPS5959074A JPS5959074A JP16886282A JP16886282A JPS5959074A JP S5959074 A JPS5959074 A JP S5959074A JP 16886282 A JP16886282 A JP 16886282A JP 16886282 A JP16886282 A JP 16886282A JP S5959074 A JPS5959074 A JP S5959074A
- Authority
- JP
- Japan
- Prior art keywords
- chopper
- circuit
- output
- signal
- timer circuit
- 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
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Power Conversion In General (AREA)
- Protection Of Static Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、サイリスタ、トランジスタ、ある・ いはそ
の他の半導体スイッチで構成されるチョツ”装Ｗにおい
て、チョツノ母出力過電圧かラチョツｌ？素子及び負荷
を保護すると共に、負荷しゃ断時に生じるような短時間
の過電圧では装置Ｒを停止させず、出力電子が所定時間
内に所定レベルに下がった場合には、装置を再び継続運
転させるようなチョツノＪ？装置に１６９するものであ
る。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention is directed to a device W consisting of a thyristor, a transistor, or other semiconductor switch, which is capable of detecting overvoltage at the motherboard output or overvoltage of the output device and the load. In addition to protecting the device R, it does not stop the device R in the case of a short-term overvoltage that occurs during load cutoff, and if the output electrons fall to a predetermined level within a predetermined time, the device can continue to operate again. 169 to the device.
第１図は、従来のチョッパ装置であるが、ここではゲー
トターンオフサイリスタ（ＧＴＯ）スイッチで構成され
る昇圧チョッパ装置を例にとって説明する。第１図にお
いて、１は交流電源、２は入力しや１祈器、３は三相ブ
リッジ整流器、４は直流リアクトル、５はダイオード、
６はコンデンサ、７は半導体スイッチ、８は半導体スイ
ッチ７に０Ｎ−ＯＦＦ信号を与えるチョツＩ？制御回路
、９は負荷、１０はチョツノク出力電田Ｅｄｏを制御レ
ベルの雷、圧にする変換器、１１は比較器、１２は比較
器１１に比東父の八準どなる所定の電圧を与える基県′
１゛ｄ圧椋、１３はしゃ断器開数回路、１４はチョツノ
９の停止信号、１５ａは入力しゃ断器を開放するための
信号であるっ又、Ｂｄｏはチョッパ出力′覗比を表わし
ている。Although FIG. 1 shows a conventional chopper device, a step-up chopper device composed of a gate turn-off thyristor (GTO) switch will be explained here as an example. In Figure 1, 1 is an AC power supply, 2 is an input device, 3 is a three-phase bridge rectifier, 4 is a DC reactor, 5 is a diode,
6 is a capacitor, 7 is a semiconductor switch, and 8 is a capacitor that provides an ON-OFF signal to the semiconductor switch 7. A control circuit, 9 is a load, 10 is a converter that converts the electric output voltage Edo to a control level, 11 is a comparator, and 12 is a base for giving a predetermined voltage to the comparator 11, prefecture'
13 is a breaker open circuit, 14 is a stop signal for the chopper 9, 15a is a signal for opening the input breaker, and Bdo represents the chopper output's viewing ratio.
第１は（において、変換器１０のレベル変換器で検出し
ているチョッパ出方電圧が１１の比較器において、所定
の電圧以上の過電圧になると第２図のように、チョツノ
４の停止信号１４をチョッパ制御回路８に与えると共に
、入力しゃ断器を開放するための信号１５ａをしや１（
Ｊ？器開放回路１３に与えて、装置を停止させる。The first is (in ()), when the chopper output voltage detected by the level converter of the converter 10 becomes an overvoltage equal to or higher than a predetermined voltage in the comparator 11, a stop signal 14 of the chopper 4 is generated as shown in FIG. is given to the chopper control circuit 8, and a signal 15a for opening the input breaker is sent to the chopper control circuit 8.
J? to the device open circuit 13 to stop the device.
〔背を技術の間１町
しかし、チョツノ９制（財）回路の誤動作、あるいはチ
ョツ・９装置出力の直流側回路が負荷状態から急激にし
ゃ断された場合、直流リアクトル４のインダクタンスに
蓄えられたエネルギーによってチョッ・ぐ出力電圧が一
時的に過電圧になるが、これは短時間のものであれば装
置に与える影響は少ない。しかしながら従来のチョツノ
Ｊ？装置においては、このような状態であってもチョッ
パ装置を停止させていた。[One town behind the technology. However, if the Chotsuno 9 system (foundation) circuit malfunctions or the DC side circuit of the Chotsu 9 device output is suddenly cut off from the load state, the voltage stored in the inductance of the DC reactor 4. The output voltage that is chopped due to the energy temporarily becomes overvoltage, but if this is only for a short time, it will have little effect on the equipment. However, the conventional Chotsuno J? In the equipment, the chopper device was stopped even in such a state.
本発明の目的は過’Ｋ Ｅがら装置べを保護すると共ニ
、前記のような事情に鑵みてなされたもので過剰な保護
を避け、装置の運転をできるだけ継続させることが出来
るチョッパ装置を１是供することにある。The purpose of the present invention is to protect the equipment from over-protection, and was made in consideration of the above-mentioned circumstances.The present invention has been made in consideration of the above-mentioned circumstances, and is designed to provide a chopper equipment that can avoid excessive protection and allow the equipment to continue operating as long as possible. It is about offering.
本発明は、この目的を達成するために、過電圧発生と同
時にタイマー回路を付勢し、このタイマー回路の出力発
生前にチョッパ装置の′市川が所定値までに低下する際
は再運転し、タイマー回路が出力を発生した時点でチョ
ッパ装置の屯田が所定値以上であると永は、入力しゃ断
器を開放して運転を停止することを特徴とする。In order to achieve this object, the present invention activates a timer circuit at the same time as an overvoltage occurs, and when the voltage of the chopper device drops to a predetermined value before the output of this timer circuit is generated, the chopper device is restarted and the timer circuit is activated. The present invention is characterized in that when the output of the chopper device exceeds a predetermined value at the time when the circuit generates an output, the input breaker is opened and the operation is stopped.
以下、第３図をもとに本発明の一実施例を説明する。第
３図において、第２図と同一符号のものは同一機能を有
するものであり、説明を賢略する。An embodiment of the present invention will be described below with reference to FIG. In FIG. 3, the same reference numerals as in FIG. 2 have the same functions, and the explanation will be omitted.
第３図において、１５ｂは人力しゃ断器を開放するため
の信号、１６はタイマー回路、１７はタイマー回路が始
動で１１１、停止でＯＷの信号、１８．１９はＮＯＴ回
路、２０．２１はＡＮＤ回路、２２はチョッ・量の停止
指令を解除するチョッパの運転信号、２３はタイマー回
路を始動するための信号、２４は１６〜２３の１幾能を
具備した過電圧判別回路である。In Fig. 3, 15b is a signal for opening the human power breaker, 16 is a timer circuit, 17 is a signal 111 when the timer circuit starts and OW when it stops, 18.19 is a NOT circuit, and 20.21 is an AND circuit. , 22 is a chopper operation signal for canceling the chopper stop command, 23 is a signal for starting a timer circuit, and 24 is an overvoltage discrimination circuit having one of the functions 16 to 23.
第３図において、比較器１１はチョッパ過電ＦＥを検出
するとチョッパの停止信号１４をチョッパ制御回路８に
与えると同時に、タイマー回１洛１６を始動させるため
の信号２３をタイマー回路１６に与え、又過゛ｉ［ｉＥ
で１１′の信号なＮＯＴ回路１９、ＡＮＤ回路２０に与
える。Ａ、 Ｎ Ｄ回路２０はこの信号とタイマー回路
始１す１で”１′の信号１７とを判別して入力しゃ断器
を開放ｒるための信号１５ｂをしゃ断開放回路１３に４
える。父、ＡＮＤ回路２１はＮ Ｏ’ｌ’回路１８ 、
１９からの信号を判別して、チヨツ・平の停止Ｆ指令を
解除するチヨッ／’Ｐ ：１１転信号２２を、チョッパ
制御回路８に与える。In FIG. 3, when the comparator 11 detects the chopper overcurrent FE, it gives a chopper stop signal 14 to the chopper control circuit 8, and at the same time gives a signal 23 for starting the timer 16 to the timer circuit 16. Also past i[iE
The signal 11' is applied to the NOT circuit 19 and the AND circuit 20. The A, N D circuit 20 discriminates between this signal and the signal 17 of "1" at the timer circuit start 1 and sends a signal 15b for opening the input breaker to the breaker opening circuit 13.
I can do it. Father, AND circuit 21 is N O'l' circuit 18,
19 and gives the chopper control circuit 8 a Chiyotsu/'P:11 rotation signal 22 for canceling the Chiyotsu/Taira stop F command.
もし、第４図（ａｌのように、タイマー回ｗ、に〕６が
始動するまでの期間ＴＤ内にチョッパ出方電圧が所定電
圧ＶＬより下がらなければ、ＡＮＤ回ｈｒＨｚ Ｊの出
力信号は１ｏ”となりチョッパ素子はオフのままである
。そして、タイマー回路１６が始動すると同時に入力し
ゃＩＪＩ〒器を開放するためめの信号１５ｂを入力しゃ
断器開放回路Ｉ３に与え、入力しゃ断器を開放する。又
、第４図（ｂｌのようにタイマー回路が始動するまでの
期間ＴＤ内九チョッノ平出力電圧が所定電圧ＶＬより下
がれば、比較器１１の出力信号１４は１（）１となり、
ＡＮＤ回路２１の出力信号２２は１１２となる。If the chopper output voltage does not fall below the predetermined voltage VL within the period TD until the timer 6 starts as shown in FIG. Therefore, the chopper element remains off.Then, at the same time as the timer circuit 16 starts, a signal 15b for opening the input breaker is applied to the input breaker opening circuit I3, and the input breaker is opened. , if the average output voltage within the period TD until the timer circuit starts as shown in FIG.
The output signal 22 of the AND circuit 21 becomes 112.
そしてこの信号はチョッノ＋ ｆｕｌｌ ｆａｉ１回路
８に与えられ、チョッパの停止指令を１９／１除し、＋
１１びチョッパ装置を運転させる。This signal is then given to the chopper + full fai1 circuit 8, which divides the chopper stop command by 19/1 and outputs +
11 and operate the chopper device.
以上から明らかなように、本発明によれば装置に影響を
及ぼさないような短時間の暢Ｐｌ（１−Ｅの場合には、
装置の運転を継続させることができる。As is clear from the above, according to the present invention, a short period of Pl (in the case of 1-E) that does not affect the device,
The device can continue to operate.
第１図は、過覗圧保護Ｓ装置を４備した従来の昇圧チョ
ッパ装置の一例を示す回路図、第２図は第１図の動作を
説明するためのタイムチャート、第３図は本発明の一実
施例を示す回路図、第４図は第３図の本発明の一実施例
を説明するためのタイムチャートである。
１・・・交流電源、２・・・入力しゃ断器、３・・三（
目ブリッジ整流器、４・・・直流リアクトル、５・・・
ダイオード、６・・・コンデンサ、７・・・半−ｉｌ１
体スイッチ、８・・・チョッパｆｔ１ｌｌ ＭＩＪ回路
、９・・・負荷、１０・・・変換器、１）・・・比較器
、１２・・・水準電Ｉｆ源、１３・・・しゃ断器開放回
路、１４・・・チョッパの停止信号、１５ａ、１５ｂ・
・・入力しゃ断器を開放するための信号、１６・・・タ
イマー回路、１７・・・タイマー回路始動で１１１の信
号、１８．１９・・・ＮＯＴ回路、２０．２１・・・Ａ
ＮＤ回路、２２・・・チョツ・やの停止信号を解除する
チョッパの運転信号、２３ニ一°タイマー回路を始動す
るための信号、２４・ｉ・１′６〜２３の機能を具備し
た過電用判別回路。
出願人代理人 弁理士 鈴 江 武 彦５ａ
ληし、ＰＪ汀χシ２ １５ｂ−−１−一」１１Ｆ二一
一一）FIG. 1 is a circuit diagram showing an example of a conventional boost chopper device equipped with four overpressure protection S devices, FIG. 2 is a time chart for explaining the operation of FIG. 1, and FIG. 3 is a diagram of the present invention. FIG. 4 is a circuit diagram showing one embodiment of the present invention, and FIG. 4 is a time chart for explaining one embodiment of the present invention shown in FIG. 1... AC power supply, 2... Input breaker, 3... Three (
Bridge rectifier, 4... DC reactor, 5...
Diode, 6... Capacitor, 7... Half-il1
Body switch, 8... Chopper ft1ll MIJ circuit, 9... Load, 10... Converter, 1)... Comparator, 12... Level voltage If source, 13... Breaker open circuit , 14... Chopper stop signal, 15a, 15b.
...Signal for opening the input breaker, 16...Timer circuit, 17...Signal 111 when the timer circuit starts, 18.19...NOT circuit, 20.21...A
ND circuit, 22...Chopper operation signal to cancel the stop signal of the chopper, 23 Signal to start the 21° timer circuit, Overcurrent equipped with the functions of 24.i.1'6 to 23 Discrimination circuit for use. Applicant's representative Patent attorney Takehiko Suzue
Claims (1)
ッ／′Ｐ装置において、該チョッ・ｆ素子のオン、オフ
を制（財）するチョッパＨ＋ｌＪ ６）１１回路と、チ
ョッパ出力電子が所定の電圧以上の、鳴合過箱田検出信
号を出力する過電圧検出回路と、過電。 圧検出信号が出力された後、所定時間で信号を発生する
タイマー回路を具備し、Ｍ’Ｊ ＠Ｑ ＞（ｊｊＪ ’
ｒｌイ田検小検出回路作時、前記チョッパ１ｉｆｔ ｌ
ｌｌｉｌ回ｉ１′８に停止指令を与え、前記タイマー回
路の出力う゛＾生＋ｉｉｌにチョツノ２出力電圧が所定
の電圧以上に下がればチョッパ装置を再運転し、前記タ
イマー回路が出力を発生し、かつチョツ／？出力′１イ
１上が所定の電圧以上の場合はチョッパ装置の人力しゃ
断器を開放することを特徴とするチョツ・ｅ装置混っ[Claims] In a chopper/'P device for boosting or lowering a DC voltage to a predetermined voltage, a chopper H+lJ 6) 11 circuit for controlling on/off of the chopper element; An overvoltage detection circuit that outputs an overvoltage detection signal when the chopper output electronics exceed a predetermined voltage, and an overvoltage detection circuit. A timer circuit is provided that generates a signal at a predetermined time after the pressure detection signal is output, and M'J @Q > (jjJ '
rl When creating the small detection circuit, the chopper 1ift l
A stop command is given to the timer circuit i1'8, and when the output voltage of the timer circuit falls below a predetermined voltage, the chopper device is restarted, the timer circuit generates an output, and Chotu/? Chotsu-e device is characterized by opening the manual breaker of the chopper device when the voltage on the output '1-1 is higher than a predetermined voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16886282A JPS5959074A (en) | 1982-09-28 | 1982-09-28 | Chopper device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16886282A JPS5959074A (en) | 1982-09-28 | 1982-09-28 | Chopper device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5959074A true JPS5959074A (en) | 1984-04-04 |
Family
ID=15875930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16886282A Pending JPS5959074A (en) | 1982-09-28 | 1982-09-28 | Chopper device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5959074A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63274363A (en) * | 1987-04-28 | 1988-11-11 | Toko Inc | Switching power circuit |
-
1982
- 1982-09-28 JP JP16886282A patent/JPS5959074A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63274363A (en) * | 1987-04-28 | 1988-11-11 | Toko Inc | Switching power circuit |
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