JPH04156237A - Battery charging/discharging circuit for uninterruptible power supply - Google Patents
Battery charging/discharging circuit for uninterruptible power supplyInfo
- Publication number
- JPH04156237A JPH04156237A JP2278446A JP27844690A JPH04156237A JP H04156237 A JPH04156237 A JP H04156237A JP 2278446 A JP2278446 A JP 2278446A JP 27844690 A JP27844690 A JP 27844690A JP H04156237 A JPH04156237 A JP H04156237A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- contactor
- charging
- power
- power supply
- 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
- 238000007599 discharging Methods 0.000 title claims abstract description 12
- 230000005856 abnormality Effects 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Stand-By Power Supply Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は直流回路にバッテリを設け、浮動充電しつつ負
荷に安定交流電力を供給する無停電電源装置のバッテリ
充放電回路に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a battery charging/discharging circuit for an uninterruptible power supply device that includes a battery in a DC circuit and supplies stable AC power to a load while performing floating charging.
〔従来の技術］
第２図は従来の浮動充電形の無停電装置のバッテリ充放
電回路を示したもので、図中上は無停電電源装置、Ａは
商用電源、Ｂは負荷、Ｃは順変換器、Ｄは逆変換器、３
は接触器、４はバッテリである。 無停電電源装置上は
商用電ｆＩＡから順変換器Ｃを通して得る直流電力を逆
変換器りによって、交流に変換し負荷Ｂに電力を供給す
るが、無停電化のためのバッテリ４を途中に設け、浮動
充電を行い不測の停電時にもこのバッテリの電力により
逆変換器りに電力の供給を可能な様に構成されている場
合が多い。[Prior Art] Figure 2 shows a battery charging/discharging circuit of a conventional floating charging type uninterruptible device. converter, D is inverse converter, 3
is a contactor, and 4 is a battery. On the uninterruptible power supply, the DC power obtained from the commercial power source FIA through the forward converter C is converted to AC by the reverse converter and supplied to the load B, but a battery 4 is installed in the middle for uninterruptible power supply. In many cases, the battery is configured to perform floating charging so that even in the event of an unexpected power outage, the battery power can be used to supply power to the inverter.
この浮動充電方式において、バッテリ４が異常（異常温
度上昇等）となった場合は、順変換器Ｃを制御して充電
ｔｆＬを制御する方式、若しくは接触器３でバッテリ４
の充電を切り動ずことにより保護が行われてきた。In this floating charging method, if the battery 4 becomes abnormal (abnormal temperature rise, etc.), the charge tfL is controlled by controlling the forward converter C, or the contactor 3
Protection has been achieved by turning off the battery's charge.
しかし、これには複雑な順変換器Ｃの出力のバッテリ充
電電流の監視や抑制する回路が必要があり、またバッテ
リ４を切離してしまうと、浮動充電を行っているため、
停電時に放電不能となる場合があった。However, this requires a complicated circuit to monitor and suppress the battery charging current output from the forward converter C, and if the battery 4 is disconnected, floating charging is performed.
There were cases where discharge became impossible during a power outage.
Ｃｆ１１Ｍを解決するための手段〕
本発明は上述した点に鑑みてなされたもので、バッテリ
充電方向にはダイオードと接触器を直りに接続し、更に
前記ダイオードと並列に停電検矢時の即時放電用サイリ
スタを設ける。Means for Solving Cf11M] The present invention has been made in view of the above-mentioned points, and it connects a diode and a contactor directly in the battery charging direction, and further connects the diode in parallel with an immediate discharge device at the time of a power outage inspection. A thyristor is provided for this purpose.
一方バッテリ放電方向には逆阻止用ダイオードと接触器
を直列に接続する構成となす。On the other hand, in the battery discharging direction, a reverse blocking diode and a contactor are connected in series.
〔作用］
バッテリが正常時には、充電用接触器が投入されている
ので浮動充電状態を継続し、バッテリ異常を検知した場
合は、放電用接触器を投入すると共に、充電用接触器を
開放するよう動作し、停電時に際しても無停電で逆変換
器に直流電力を供給することが可能となる。[Function] When the battery is normal, the charging contactor is turned on, so the floating charging state continues, and if a battery abnormality is detected, the discharging contactor is turned on and the charging contactor is opened. This makes it possible to supply DC power to the inverter without interruption even during a power outage.
第１図は本発明の一実施例を示す浮動充電形の無停電装
置のバッテリ充放電回路の構成図である図中１．５はダ
イオード、２は停電時に動作するサイリスタ、６は３と
逆に回路を切り換える接触器であり、第２図と同一符号
は同じ機能を示す第１図において、正常時には接触器３
は投入されており順変換器より
η ダイオード１→接触器３→バツテリ４】
の経路で浮動充電される。Figure 1 is a configuration diagram of a battery charging/discharging circuit of a floating charging type uninterruptible device showing an embodiment of the present invention. In the figure, 1.5 is a diode, 2 is a thyristor that operates during a power outage, and 6 is the opposite of 3. It is a contactor that switches the circuit to
is turned on, and from the forward converter η diode 1 → contactor 3 → battery 4]
is charged floatingly along the path of
停電時には、サイリスタ２にゲート信号を与えバッテリ
４→接触器３→サイリスタ２
の経路で即時にバッテリ４の直流電力が供給されると共
に、０．１〜０．５秒後に接触器６が投入されバッテリ
４→接触器６→ダイオード５
の経路に放電経路が変わり、接触器３を開放する。In the event of a power outage, a gate signal is given to the thyristor 2, and direct current power from the battery 4 is immediately supplied via the route of the battery 4 → contactor 3 → thyristor 2, and the contactor 6 is turned on after 0.1 to 0.5 seconds. The discharge path changes to the path of battery 4 → contactor 6 → diode 5, and contactor 3 is opened.
復電検知時には、接触器３を投入すると共に接触器６を
開放することにより、正常状態に戻りバッテリ４は浮動
充電状態となる。When power restoration is detected, the contactor 3 is turned on and the contactor 6 is opened, thereby returning to the normal state and putting the battery 4 in a floating charging state.
また、充電状態でバッテリ異常を検知した場合は、接触
器６を投入すると共に接触器３を開放しバッテリ４の充
電を停止する様動作する。バッチ・ リ４の異常が復
旧すると、自動的に接触器３が投入され、接触器６を開
放し、浮動充電状態に復帰する欅動作し、常に逆変換器
への直流電力供給を・ 休止する事のない無停電電源
装置を構成する。Further, if a battery abnormality is detected in the charging state, the contactor 6 is turned on, the contactor 3 is opened, and charging of the battery 4 is stopped. When the abnormality in Batch Li 4 is restored, contactor 3 is automatically turned on, contactor 6 is opened, and the keystone operation returns to the floating charging state, and the DC power supply to the inverter is always stopped. Configure a trouble-free uninterruptible power supply.
以上説明した如く本発明によれば、バッテリの正常時は
勿論異常時においても複雑な制御の介入なしにバッテリ
の切離しが出来るので、無停電電源装置を構成すること
が可能で極めて有用な装置である。As explained above, according to the present invention, the battery can be disconnected without complicated control intervention not only when the battery is normal but also when it is abnormal, so it is possible to configure an uninterruptible power supply and is an extremely useful device. be.
第１図は本発明による無停電電源ＩＩのバッテリ充放電
回路の一実施例を示す構成図、！２図は従来の無停電電
源装置のバッテリ充放電回路の一例を示す構成図である
。
土−・・・・無停電電ｍ装置、Ａ −−−−商用ｔ ｆ
ｉ、Ｂ−・・−・負荷、Ｃ−−−−順変換器、Ｄ−・・
・・逆変換器１ 、 ５−−−−−−ダイオード、２・
・・−サイリスタ、３．６−−−−一接触器、４−−バ
ッテリ。FIG. 1 is a configuration diagram showing an embodiment of the battery charging/discharging circuit of the uninterruptible power supply II according to the present invention. FIG. 2 is a configuration diagram showing an example of a battery charging/discharging circuit of a conventional uninterruptible power supply. Soil: Uninterruptible power supply equipment, A---Commercial tf
i, B---load, C---forward converter, D---
・・Inverse converter 1, 5---diode, 2・
...-thyristor, 3.6--one contactor, 4--battery.
Claims (1)
随する浮動充電形バッテリ充放電回路において、前記順
変換器とバッテリの間に充電用接触器と放電用接触器を
設け、常時は充電用接触器を投入し、停電時やバッテリ
保護機能動作時には放電用接触器を投入すると共に充電
用接触器を開放し、バッテリの保護を行うことを特長と
する無停電電源装置のバッテリ充放電回路。1. In a floating charging type battery charging/discharging circuit attached to a forward converter that supplies DC power of an uninterruptible power supply, a charging contactor and a discharging contactor are provided between the forward converter and the battery, and charging is normally performed. A battery charging/discharging circuit for an uninterruptible power supply that protects the battery by turning on a contactor for charging and opening a contactor for charging at the time of a power outage or when the battery protection function is activated. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2278446A JPH04156237A (en) | 1990-10-17 | 1990-10-17 | Battery charging/discharging circuit for uninterruptible power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2278446A JPH04156237A (en) | 1990-10-17 | 1990-10-17 | Battery charging/discharging circuit for uninterruptible power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04156237A true JPH04156237A (en) | 1992-05-28 |
Family
ID=17597454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2278446A Pending JPH04156237A (en) | 1990-10-17 | 1990-10-17 | Battery charging/discharging circuit for uninterruptible power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04156237A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011199929A (en) * | 2010-03-17 | 2011-10-06 | Ntt Facilities Inc | Dc power feeding system |
| CN105974322A (en) * | 2016-05-09 | 2016-09-28 | 上海海事大学 | Hybrid power ship testing device based on self-configuration power battery |
-
1990
- 1990-10-17 JP JP2278446A patent/JPH04156237A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011199929A (en) * | 2010-03-17 | 2011-10-06 | Ntt Facilities Inc | Dc power feeding system |
| CN105974322A (en) * | 2016-05-09 | 2016-09-28 | 上海海事大学 | Hybrid power ship testing device based on self-configuration power battery |
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