JPS635995B2 - - Google Patents
Info
- Publication number
- JPS635995B2 JPS635995B2 JP54101199A JP10119979A JPS635995B2 JP S635995 B2 JPS635995 B2 JP S635995B2 JP 54101199 A JP54101199 A JP 54101199A JP 10119979 A JP10119979 A JP 10119979A JP S635995 B2 JPS635995 B2 JP S635995B2
- Authority
- JP
- Japan
- Prior art keywords
- commercial
- inverter
- circuit
- inverter device
- power source
- 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.)
- Expired
Links
- 239000013078 crystal Substances 0.000 claims description 13
- 230000001360 synchronised effect Effects 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/003—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to inverters
-
- 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
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Inverter Devices (AREA)
- Stand-By Power Supply Arrangements (AREA)
Description
【発明の詳細な説明】
本発明は、複数台のインバータ装置と商用予備
電源装置を具備し、常時の並列運転時は水晶発振
器の信号で運転し、インバータ装置のうち１台が
故障した時は残りのインバータ装置を商用同期運
転に切換えるインバータ装置に関する。Detailed Description of the Invention The present invention is equipped with a plurality of inverter devices and a commercial standby power supply device, and operates using a signal from a crystal oscillator during normal parallel operation, and when one of the inverter devices fails, The present invention relates to an inverter device that switches the remaining inverter devices to commercial synchronous operation.
従来のインバータ装置の構成および並列運転方
式を第１図にて説明する。第１図において１は整
流回路、２はインバータ回路、３，４は切換回
路、５は負荷、６は制御回路、７は定電圧制御回
路、８は発振回路、９は故障検出回路、１０はイ
ンバータ装置、１１は充電器、１２は蓄電池、１
３はインバータ装置１０と同じ構成をもつインバ
ータ装置、１４，１５は夫々充電器１１、蓄電池
１２と同じ構成をもつ充電器、蓄電池である。１
６は水晶発振器であり、インバータ装置１０およ
び１３の発振回路に安定な基準周波数を供給する
ためのものである。 The configuration and parallel operation method of a conventional inverter device will be explained with reference to FIG. In Figure 1, 1 is a rectifier circuit, 2 is an inverter circuit, 3 and 4 are switching circuits, 5 is a load, 6 is a control circuit, 7 is a constant voltage control circuit, 8 is an oscillation circuit, 9 is a failure detection circuit, and 10 is a Inverter device, 11 is a charger, 12 is a storage battery, 1
3 is an inverter device having the same configuration as the inverter device 10, and 14 and 15 are a charger and a storage battery that have the same configurations as the charger 11 and the storage battery 12, respectively. 1
A crystal oscillator 6 is used to supply a stable reference frequency to the oscillation circuits of the inverter devices 10 and 13.
この第１図の装置は常時２台のインバータ装置
１０，１３の並列冗長運転により負荷５に電力を
供給する。この時、水晶発振器１６よりの信号に
より運転している。ここでなんらかの原因により
例えば１台のインバータ装置１０が故障すると故
障検出回路９が働き、インバータ装置１０の切換
回路３をオフし、インバータ装置１３、１台によ
つて負荷５に電力を供給し続けることができる。
ところが、この状態においてさらに残りのインバ
ータ装置１３が故障すると負荷に電力を供給する
ことができなくなる欠点があつた。 The device shown in FIG. 1 always supplies power to the load 5 through parallel redundant operation of two inverter devices 10 and 13. At this time, it is operated by a signal from the crystal oscillator 16. If, for example, one inverter device 10 breaks down for some reason, the failure detection circuit 9 operates, turns off the switching circuit 3 of the inverter device 10, and continues to supply power to the load 5 by one inverter device 13. be able to.
However, if the remaining inverter device 13 fails in this state, there is a drawback that power cannot be supplied to the load.
次に、従来の商用予備電源装置を持つ単機のイ
ンバータ装置の運転方式を第２図にて説明する。
第２図において第１図と同一の番号を付した部分
の名称は第１図のものと同一である。第２図で第
１図と異なる部分は、第１図の水晶発振器１６が
第２図においては商用同期回路１７におきかわつ
ていることと、第１図のインバータ装置１３、切
換回路４が第２図においては夫々商用予備電源１
８、切換回路１９におきかわつていることであ
る。 Next, the operating method of a single inverter device having a conventional commercial standby power supply device will be explained with reference to FIG.
The names of parts in FIG. 2 that are numbered the same as in FIG. 1 are the same as in FIG. The difference between FIG. 2 and FIG. 1 is that the crystal oscillator 16 in FIG. 1 has been replaced with a commercial synchronous circuit 17 in FIG. In Figure 2, each commercial standby power source 1
8. This is a change to the switching circuit 19.
第２図において商用予備電源１８の周波数は商
用同期回路１７によりインバータ装置１０の発振
回路８に伝えられ、その結果インバータ装置１０
の出力周波数は商用予備電源１８の周波数に一致
するように同期運転を行なつていることになる。
第２図に示したシステムにより常時は１台のイン
バータ装置１０の単機運転により負荷５に電力を
供給し、インバータ装置１０がなんらかの原因で
故障を生じた時は故障検出回路９が働き、インバ
ータ装置１０の切換回路３をオフし、商用予備電
源１８の切換回路１９をオンすることで商用予備
電源１８より負荷５に電力を供給し続けることが
できる。この時、インバータ装置１０は商用予備
電源１８に同期運転しているので切換回路３をオ
フした瞬間に切換回路１９をオンさせることで負
荷５に対して無瞬断の電力を係給することができ
る。ところがインバータ装置１０が常時商用予備
電源１８に同期運転しているため負荷５に対して
は商用周波数の電力が供給されることになり第１
図におけるインバータ装置１０および１３の並列
運転における水晶発振器１６による安定な周波数
の電力を供給するメリツトが失われてしまう欠点
があつた。 In FIG. 2, the frequency of the commercial standby power source 18 is transmitted to the oscillation circuit 8 of the inverter device 10 by the commercial synchronous circuit 17, and as a result, the frequency of the commercial standby power source 18 is transmitted to the oscillation circuit 8 of the inverter device 10.
This means that synchronized operation is performed so that the output frequency matches the frequency of the commercial standby power source 18.
With the system shown in FIG. 2, power is always supplied to the load 5 by single operation of one inverter device 10, and when the inverter device 10 malfunctions for some reason, the failure detection circuit 9 is activated and the inverter device By turning off the switching circuit 3 of 10 and turning on the switching circuit 19 of the commercial backup power source 18, it is possible to continue supplying power from the commercial backup power source 18 to the load 5. At this time, since the inverter device 10 is operating in synchronization with the commercial standby power source 18, by turning on the switching circuit 19 the moment the switching circuit 3 is turned off, uninterrupted power can be supplied to the load 5. can. However, since the inverter device 10 is always operating in synchronization with the commercial standby power source 18, the load 5 is supplied with commercial frequency power.
There is a drawback that the advantage of supplying power at a stable frequency by the crystal oscillator 16 when the inverters 10 and 13 shown in the figure are operated in parallel is lost.
本発明は複数台並列冗長運転するインバータ装
置と商用予備電源を有する装置において上記欠点
を解消すべく、常時は負荷に水晶発振器による安
定良質な一定周波数の電力を供給し、万一１台の
インバータ装置が故障して冗長運転ができなくな
つた際に残りのインバータ装置を商用予備電源に
同期運転させ、商用予備電源をバツクアツプとす
る冗長運転を行なうことで電源の安定性と供給信
頼度を高めたインバータ装置を提供することを目
的としている。 In order to eliminate the above-mentioned drawbacks in an inverter device that operates multiple units redundantly in parallel and a device that has a commercial standby power source, the present invention always supplies stable, high-quality, constant frequency power to the load using a crystal oscillator, and in the event that one inverter When a device fails and redundant operation is no longer possible, the remaining inverter devices are operated in synchronization with the commercial backup power source, and the commercial backup power source is used as a backup to perform redundant operation, increasing the stability and reliability of the power supply. The purpose of the present invention is to provide an inverter device with improved performance.
以下、本発明の一実施例を第３図によつて説明
する。第３図において、第１図、第２図と同一番
号を付した部分の名称は第１図、第２図のものと
同一である。第３図において第１図、第２図と異
なる部分は、インバータ装置の制御回路で、水晶
発振器１６商用同期回路１７、水晶発振器１６と
商用同期回路１７との信号切換を行なう切換回路
２０が装備されている点である。 An embodiment of the present invention will be described below with reference to FIG. In FIG. 3, the names of parts given the same numbers as in FIGS. 1 and 2 are the same as in FIGS. 1 and 2. The part in FIG. 3 that is different from FIGS. 1 and 2 is the control circuit of the inverter device, which is equipped with a crystal oscillator 16, a commercial synchronous circuit 17, and a switching circuit 20 for switching signals between the crystal oscillator 16 and the commercial synchronous circuit 17. This is the point.
第３図の装置の運転は以下の通り行なわれる。
常時は２台のインバータ装置１０，１３が並列運
転しており、水晶発振器１６の信号で運転してい
る。インバータ装置１３が故障するとインバータ
装置１０の故障検出回路９が働き、インバータ装
置１３の切換回路４をオフし、さらにインバータ
装置１０に信号を送り、インバータ装置１０で
は、切換回路２０にて、水晶発振器１６から商用
同期回路１７に切換えて、商用同期運転になる。
これで商用予備電源１８でバツクアツプできるよ
うになる。この様な制御回路を付加することによ
つて、並列運転による冗長性に加え、万一１台の
インバータ装置が故障した時についても、冗長性
をもたせることができる。第３図では水晶発振器
１６、商用同期回路１７、および切換回路２０が
２台のインバータに対し１セツトのみ設置される
場合を説明したが、２台のインバータのそれぞれ
に各１セツトづつ設置しても良い。また本発明で
は２台の並列運転について説明したが、３台以上
の並列運転のインバータ装置においても、この制
御回路を付加することによつてインバータの並列
運転のメリツトをそこなうことなく、システム全
体の冗長性を増加させることができる。 The operation of the apparatus of FIG. 3 is as follows.
Two inverter devices 10 and 13 are normally operated in parallel and driven by a signal from a crystal oscillator 16. When the inverter device 13 fails, the failure detection circuit 9 of the inverter device 10 operates, turns off the switching circuit 4 of the inverter device 13, and sends a signal to the inverter device 10. 16 to the commercial synchronous circuit 17, resulting in commercial synchronous operation.
This makes it possible to back up using the commercial backup power source 18. By adding such a control circuit, in addition to redundancy due to parallel operation, it is possible to provide redundancy in the event that one inverter device fails. In Fig. 3, only one set of the crystal oscillator 16, commercial synchronous circuit 17, and switching circuit 20 is installed for two inverters, but it is also possible to install one set for each of the two inverters. Also good. Furthermore, in the present invention, parallel operation of two inverters has been explained, but by adding this control circuit, even in inverter devices operating three or more in parallel, the merits of parallel operation of inverters are not lost, and the overall system is improved. Redundancy can be increased.
第１図、第２は従来装置の構成図、第３図は本
発明の一実施例を示す構成図である。
１…整流回路、２…インバータ回路、３，４，
１９…切換回路、５…負荷、６…制御回路、７…
定電圧制御回路、８…発振回路、９…故障検出回
路、１０，１３…インバータ装置、１１，１４…
充電器、１２，１５…蓄電池、１６…水晶発振
器、１７…商用同期回路、１８…商用予備電源、
２０…水晶発振器と商用同期回路との切換回路。
1 and 2 are block diagrams of a conventional device, and FIG. 3 is a block diagram showing an embodiment of the present invention. 1... Rectifier circuit, 2... Inverter circuit, 3, 4,
19...Switching circuit, 5...Load, 6...Control circuit, 7...
Constant voltage control circuit, 8... Oscillation circuit, 9... Failure detection circuit, 10, 13... Inverter device, 11, 14...
Charger, 12, 15...Storage battery, 16...Crystal oscillator, 17...Commercial synchronous circuit, 18...Commercial backup power supply,
20...Crystal oscillator and commercial synchronous circuit switching circuit.
Claims (1)
装置と商用予備電源を具備し、負荷に交流電力を
供給する装置において、前記インバータ装置の故
障を検出する故障検出装置と、前記インバータ装
置共通に１台設置されるか或はそれぞれのインバ
ータ装置に設置されていずれかの１台が選択され
ている水晶発振器と、前記故障検出装置の出力信
号によつて残りの健全なインバータ装置が前記商
用予備電源に同期運転するように切換えを行なう
ための切換回路と、前記商用予備電源との同期を
検出する商用同期回路とを備えたことを特徴とす
るインバータ装置。1. In a device that is equipped with at least two inverter devices operated in parallel and a commercial standby power source and supplies AC power to a load, a failure detection device for detecting a failure in the inverter devices and one device installed in common with the inverter devices. The remaining healthy inverter devices are synchronized with the commercial standby power source by a crystal oscillator installed in each inverter device and one of which is selected, and an output signal from the failure detection device. An inverter device comprising: a switching circuit for switching the inverter to operate; and a commercial synchronization circuit for detecting synchronization with the commercial backup power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10119979A JPS5629467A (en) | 1979-08-10 | 1979-08-10 | Inverter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10119979A JPS5629467A (en) | 1979-08-10 | 1979-08-10 | Inverter device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5629467A JPS5629467A (en) | 1981-03-24 |
| JPS635995B2 true JPS635995B2 (en) | 1988-02-06 |
Family
ID=14294257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10119979A Granted JPS5629467A (en) | 1979-08-10 | 1979-08-10 | Inverter device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5629467A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2884942B2 (en) * | 1992-09-17 | 1999-04-19 | 株式会社日立製作所 | Electric car control device |
| DE19901272A1 (en) * | 1999-01-15 | 2000-07-27 | Alstom Anlagen Und Antriebssys | Method for operating an electrical converter |
| EP4307553A3 (en) | 2018-11-30 | 2024-03-20 | Nike Innovate C.V. | Autolacing footwear motor having rotary drum encoder |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51121153A (en) * | 1975-04-16 | 1976-10-22 | Fuji Electric Co Ltd | Overloading protection system for static inverter |
-
1979
- 1979-08-10 JP JP10119979A patent/JPS5629467A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51121153A (en) * | 1975-04-16 | 1976-10-22 | Fuji Electric Co Ltd | Overloading protection system for static inverter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5629467A (en) | 1981-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH08205423A (en) | Uninterruptible power supply | |
| JPS635995B2 (en) | ||
| JPS6334659B2 (en) | ||
| JPS61109429A (en) | Inverter control circuit | |
| KR200366913Y1 (en) | A uninterruptible power supply of the mode of the dual | |
| JPH0583860A (en) | Power converter | |
| JPS5812818B2 (en) | Seishigata Invertano Kafkahogohoushiki | |
| JPS5989537A (en) | Control system for inverter | |
| US5859996A (en) | Clock signal supply for fault tolerant data processing | |
| JPS63157630A (en) | Non-interrupting switching of non-interrupted electric source | |
| JPH02146939A (en) | High efficiency ac no-break power unit | |
| JPH01231622A (en) | Power source control system | |
| JPH06232739A (en) | Clock redundancy processing system | |
| JPH01293717A (en) | Parallel redundancy commercial synchronizing oscillator device | |
| JPH0746764A (en) | Parallel operation apparatus of inverter | |
| JPS61262085A (en) | Controller for no-break power unit | |
| JP2816014B2 (en) | Uninterruptible power system | |
| JPH02276312A (en) | Standard frequency generator | |
| JPH04322138A (en) | Ac power supply system | |
| JPS58116030A (en) | Uninterruptible power system | |
| SU758582A1 (en) | Redundancy pulse generator | |
| JP2023177152A (en) | Uninterruptible power supply system and power supply path control apparatus | |
| JPH0255542A (en) | Uninterruptible power system | |
| JPH04112630A (en) | Battery backup unit | |
| SU790098A1 (en) | Device for synchronizing inverter control system |