JPH0449823A - Uninterruptible power supply equipment - Google Patents

Uninterruptible power supply equipment

Info

Publication number
JPH0449823A
JPH0449823A JP2160864A JP16086490A JPH0449823A JP H0449823 A JPH0449823 A JP H0449823A JP 2160864 A JP2160864 A JP 2160864A JP 16086490 A JP16086490 A JP 16086490A JP H0449823 A JPH0449823 A JP H0449823A
Authority
JP
Japan
Prior art keywords
inverter
converter
battery
power supply
commercial
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
JP2160864A
Other languages
Japanese (ja)
Inventor
Masahito Morikawa
森川 雅人
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.)
Shindengen Electric Manufacturing Co Ltd
Original Assignee
Shindengen Electric Manufacturing Co 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 Shindengen Electric Manufacturing Co Ltd filed Critical Shindengen Electric Manufacturing Co Ltd
Priority to JP2160864A priority Critical patent/JPH0449823A/en
Publication of JPH0449823A publication Critical patent/JPH0449823A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To prevent the consumption of an unnecessary battery by monitoring an interruption detecting signal and a battery discharge-current detecting signal on commercial power service interruption and stopping a DC/DC converter or a DC/AC inverter when both signals reach specified values or less. CONSTITUTION:A rectifier C receiving AC power supply from a commercial input terminal (a) floating-charges a battery (f) while supplying a DC/DC converter or a DC/AC inverter of (d) with DC voltage on commercial feed. A control section (e) controls the DC/DC converter or the DC/AC inverter (d), and monitors an interruption signal from a battery discharging current detector (h) and a service interruption detector (g). When service interruption is generated, the interruption signal is transmitted instantaneously over the control section (e) from the service interruption detector (g). The load side of an interruptible power supply equipment is brought to complete stoppage or a sandby state at that time, and the DC/DC converter or the DC/AC inverter automatically stops oscillation when output currents reach an expected value or less, thus preventing the consumption of the battery.

Description

【発明の詳細な説明】 本発明は、停電検出信号とバッテリー放電電流信号を監
視することによりD C/D CコンバータあるいはD
 C/A Cインバータの発振を停止せしめるようにし
た無停電電源装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention provides a DC/DC converter or a D
This invention relates to an uninterruptible power supply that stops the oscillation of a C/A C inverter.

第1図は従来の無停電電源装置の構成回路図である。図
中1は商用入力端子、2は出力端子、3は整流器部、4
はD C/D CコンバータあるいはDC/ACインバ
ータ、5は前記4の制御部、6はバッテリーである。こ
の装置の動作は、商用給電時には、商用入力は1の端子
から3の整流器に給電され、4のDC/DCコンバータ
あるいはDC/ACインバータは3の整流器から直流入
力の供給を受け、2の出力端子から負荷への出力をして
いる。
FIG. 1 is a configuration circuit diagram of a conventional uninterruptible power supply. In the figure, 1 is the commercial input terminal, 2 is the output terminal, 3 is the rectifier section, and 4
is a DC/DC converter or a DC/AC inverter, 5 is the control section of 4, and 6 is a battery. The operation of this device is that when commercial power is supplied, the commercial input is fed from the terminal 1 to the rectifier 3, the DC/DC converter or DC/AC inverter 4 receives DC input from the rectifier 3, and the output is 2. The terminal outputs to the load.

5の制御部は4の運転制御をしており、6のバッテリー
は3の整流器から浮動充電されている。
The control unit 5 controls the operation of 4, and the battery 6 is floating-charged from the rectifier 3.

また停電が発生すると、6のバッテリーの直流給電によ
りD C/D CコンバータあるいはD C/A Cイ
ンバータ4は5の制御部の運転制御を受けながら出力端
子2に出力する。
Further, when a power outage occurs, the DC/DC converter or DC/AC inverter 4 receives DC power from the battery 6 and outputs to the output terminal 2 while being controlled by the control section 5.

ところで、係る電源装置は、負荷側が完全停止している
、もしくは、待機状態にある場合、停電時には、バッテ
リー給電になるため、バッテリーのエネルギーを消耗し
てしまう問題があった。
However, in such a power supply device, when the load side is completely stopped or in a standby state, power is supplied from the battery in the event of a power outage, so there is a problem in that the energy of the battery is consumed.

本発明は係る点を鑑み停電が発生し、D C/D Cコ
ンバータあるいはD C/A Cインバータによる出力
電流が所期の値以下である場合に該DC/DCコンバー
タあるいはD C/A Cインバータの発振を停止せし
め、上記の問題点を解決しようとするものである。
In view of the above points, the present invention provides a method for converting the DC/DC converter or the DC/AC inverter into a power supply when a power outage occurs and the output current from the DC/DC converter or the DC/AC inverter is less than the expected value. This is an attempt to solve the above problem by stopping the oscillation of the oscillation.

第2図は、本発明の実施例を示す無停電電源装置の構成
回路図である。
FIG. 2 is a configuration circuit diagram of an uninterruptible power supply device showing an embodiment of the present invention.

aは商用入力端子、bは出力端子、Cは整流器、dはD
 C/D CコンバータあるいはDC/ACインバータ
、eは制御部、fはバッテリー、gは停電検出回路、h
はバッテリー放電電流検出部であるこの装置の動作は、
商用入力端子aから交流電源供給を受けた整流器Cが商
用給電時には、dのDC/DCコンバータあるいはD 
C/A Cインバータに直流電圧を給電しながら、バッ
テリーfを浮動充電している。制御部eは、DC/DC
コンバータあるいはD C/A Cインバータdを制御
し、バッテリー放電電流検出器りと停電検出回路gから
の停電信号を監視している。停電が発生すると停電検出
回路gからただちに停電信号が制Jllleに送られる
。この際、出力電流検出器りから得られる継続する。
a is the commercial input terminal, b is the output terminal, C is the rectifier, d is D
C/DC converter or DC/AC inverter, e is the control unit, f is the battery, g is the power failure detection circuit, h
is the battery discharge current detection section.The operation of this device is as follows:
When rectifier C receives AC power from commercial input terminal a, it connects to DC/DC converter d or D.
The battery f is floatingly charged while supplying DC voltage to the C/A C inverter. The control unit e is DC/DC
It controls the converter or DC/AC inverter d, and monitors the power outage signal from the battery discharge current detector and the power outage detection circuit g. When a power outage occurs, a power outage signal is immediately sent from the power outage detection circuit g to the controller. At this time, the output current obtained from the detector continues.

一方、バッテリー放電電流検出器りから得られる出力電
流が所期値以下であると制御部eはDC/DCコンバー
タあるいはD C/A Cインバータの発振を停止する
。即ち、本発明によれば、無停電電源装置の負荷側が完
全停止するかあるいは待機状態にはいっており、出力電
流が所期値以下であれば、自動的にD C/D Cコン
バータあるいは、D C/A Cインバータの発振を停
止することからバッテリーの消耗を防止できるなど実用
上の効果は大きいものとなる。
On the other hand, if the output current obtained from the battery discharge current detector is less than a predetermined value, the control section e stops the oscillation of the DC/DC converter or the DC/AC inverter. That is, according to the present invention, if the load side of the uninterruptible power supply has completely stopped or is in a standby state, and the output current is less than the desired value, the DC/DC converter or the D This has great practical effects, such as stopping the oscillation of the C/A C inverter and preventing battery consumption.

又、第3図は本発明の他の実施例をしめず構成回路図で
あって、図中(イ)商用入力端子(ロ)出力端子(ハ)
インバータ回路部(ニ)充電回路(ホ)制御部(へ)バ
ッテリー(ト)停電検出回路(チ)DC電流検出1(す
)ACスイッチ(ヌ)はコンピュータ負荷である。
Further, FIG. 3 is a configuration circuit diagram of another embodiment of the present invention, in which (A) commercial input terminal (B) and output terminal (C) are shown.
Inverter circuit section (d) Charging circuit (e) Control section (f) Battery (g) Power failure detection circuit (j) DC current detection 1 (su) AC switch (nu) is a computer load.

第3図は第2図が商用給電中も整流器C及びDC/DC
コンバータあるいはD C/A Cインバータdを介し
て出力端子すに給電するのに対し、商用給電中は商用電
力を直接供給する常時商用方式である。
Figure 3 shows the rectifier C and DC/DC even during commercial power supply as shown in Figure 2.
While power is supplied to the output terminal via a converter or DC/AC inverter d, it is a constant commercial system in which commercial power is directly supplied during commercial power supply.

即ち、商用給電中、商用入力は入力端子(イ)からAC
スイッチ(す)のA側を介して出力端子(ロ)に接続さ
れたコンピュータ負荷(ヌ)に商用電力を直送している
。停電が発生すると停電検出回路(ト)が制御回路部(
ホ)に停電信号を送出し、M脚部(ホ)はインバータ部
(ハ)の駆動信号を送り、更に、ACスイッチ(す)を
B側に切替えバッテリー(へ)の電圧を交流に変換し出
力を維持する。この際、コンピュータ負荷(ヌ)が停止
しており、バッテリー放電電流検出用のEI C電流チ 検出器(奉)が所期値以下の電流を検出した場合、制御
部(ホ)は負荷への給電が必要ないものと判断し、イン
バータ回路部(ハ)の駆動を停止させる。こうすること
によって常時商用方式の無停電電源装置においてもバッ
テリーの不要な消耗をおさえることが出来る。
In other words, during commercial power supply, the commercial input is AC from the input terminal (A).
Commercial power is directly sent to the computer load (N) connected to the output terminal (B) via the A side of the switch (S). When a power outage occurs, the power outage detection circuit (G) activates the control circuit (
Sends a power outage signal to E), M leg (E) sends a drive signal to the inverter section (C), and then switches the AC switch (S) to the B side to convert the voltage of the battery (H) to AC. Maintain output. At this time, if the computer load (N) is stopped and the EIC current detector (H) for detecting battery discharge current detects a current below the expected value, the control unit (E) It is determined that power supply is not necessary, and the drive of the inverter circuit section (c) is stopped. By doing this, unnecessary battery consumption can be suppressed even in a constantly commercial uninterruptible power supply system.

第2図及び第3図の実施例において、各部をブロック図
で簡略化しているが、それぞれ、公知の回路構成を使用
することができる。DC電流検出器は抵抗分流型、半導
体型等いづれの型も選択し得るものであり、バッテリー
放電回路に挿入する。
In the embodiments shown in FIGS. 2 and 3, each part is simplified by a block diagram, but a known circuit configuration can be used in each case. The DC current detector can be of any type, such as a resistance shunt type or a semiconductor type, and is inserted into the battery discharge circuit.

又、当然のことながら、各部分の変形、付加、削除など
の変更においても本発明の要旨の範囲で含まれるもので
ある。
Further, as a matter of course, changes such as modification, addition, deletion, etc. of each part are also included within the scope of the present invention.

以上、本発明の実施によって、商用電源停電時に停電検
出信号とバッテリー放電電流検出信号の監視をして、D
 C/D CコンバータあるいはDC/ACインバータ
を停止することができ、不必要なバッテリーの消耗を防
止でき、保守上及び経済上、有利であり、情報機器やそ
の他の電気機器の無停電電源に利用して、産業上の効果
大なるものである。
As described above, by implementing the present invention, the power failure detection signal and the battery discharge current detection signal are monitored during a commercial power outage, and the
It can stop the C/DC converter or DC/AC inverter, preventing unnecessary battery consumption, and is advantageous in terms of maintenance and economy, and can be used as an uninterruptible power source for information equipment and other electrical equipment. Therefore, the industrial effects are great.

ACスイッチ、 (ヌ)コンピューター負荷である。AC switch, (n) It is a computer load.

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

第1図は従来の無停電電源装置の構成回路図、第2図は
本発明の実施例をしめず構成回路図、第3図は、本発明
の他の実施例をしめず構成回路図であり、 1、a、(イ)は商用入力端子、2、b、(ロ)は出力
端子、3、C1整流器部、4、dはDC/DCコンバー
タあるいはDC/ACインバータ、5、e、(ホ)は制
御部、6.5、(へ)はバラ嚢
Figure 1 is a configuration circuit diagram of a conventional uninterruptible power supply, Figure 2 is a configuration circuit diagram of an embodiment of the present invention, and Figure 3 is a configuration circuit diagram of another embodiment of the present invention. Yes, 1, a, (a) are commercial input terminals, 2, b, (b) are output terminals, 3, C1 rectifier section, 4, d are DC/DC converters or DC/AC inverters, 5, e, ( E) is the control part, 6.5, (F) is the rose sac

Claims (3)

【特許請求の範囲】[Claims] (1)停電時にバッテリーとDC/DCコンバータある
いはDC/ACインバータにより負荷に給電するように
構成する無停電電源装置において、停電検出信号とバッ
テリー放電電流検出信号を監視し、その監視信号により
、前記DC/DCコンバータあるいはDC/ACインバ
ータの発振を停止せしめるようにしたことを特徴とする
無停電電源装置。
(1) In an uninterruptible power supply configured to supply power to a load using a battery and a DC/DC converter or a DC/AC inverter during a power outage, a power outage detection signal and a battery discharge current detection signal are monitored, and the monitoring signal is used to detect the An uninterruptible power supply device characterized by stopping oscillation of a DC/DC converter or a DC/AC inverter.
(2)商用電源通電の定常時は商用電力をACスイッチ
を介して負荷に給電するようにした特許請求の範囲第(
1)項の無停電電源装置。
(2) When the commercial power supply is in steady state, the commercial power is supplied to the load via the AC switch.
Uninterruptible power supply described in item 1).
(3)商用電源通電の定常時は商用電力を整流器とDC
/DCコンバータあるいはDC/ACインバータを介し
て負荷に給電するようにした特許請求の範囲第(1)項
の無停電電源装置。
(3) When the commercial power supply is running normally, the commercial power is connected to the rectifier and DC.
The uninterruptible power supply device according to claim 1, wherein power is supplied to a load via a /DC converter or a DC/AC inverter.
JP2160864A 1990-06-19 1990-06-19 Uninterruptible power supply equipment Pending JPH0449823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2160864A JPH0449823A (en) 1990-06-19 1990-06-19 Uninterruptible power supply equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2160864A JPH0449823A (en) 1990-06-19 1990-06-19 Uninterruptible power supply equipment

Publications (1)

Publication Number Publication Date
JPH0449823A true JPH0449823A (en) 1992-02-19

Family

ID=15724028

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2160864A Pending JPH0449823A (en) 1990-06-19 1990-06-19 Uninterruptible power supply equipment

Country Status (1)

Country Link
JP (1) JPH0449823A (en)

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