JPS596728A - Parallel operation control system for dc power sources - Google Patents
Parallel operation control system for dc power sourcesInfo
- Publication number
- JPS596728A JPS596728A JP57115983A JP11598382A JPS596728A JP S596728 A JPS596728 A JP S596728A JP 57115983 A JP57115983 A JP 57115983A JP 11598382 A JP11598382 A JP 11598382A JP S596728 A JPS596728 A JP S596728A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- slave
- load
- master
- parallel
- 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.)
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Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は直流定電圧装置（以下、ＡＶＲと略称）の標準
化を図るために同一容量の標準ＡＶＲ）ｉ複数組用意し
ＡＶＨの使用出力容量が増加した場合複数個の標準ＡＶ
ＲＹ：並列に接続して使用する場合の直流電源の並列運
転制御方式に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention aims to standardize DC voltage regulators (hereinafter referred to as AVR) by preparing multiple sets of standard AVRs with the same capacity. Standard AV
RY: Relates to a parallel operation control method for DC power supplies when used in parallel connection.
従来より、この種直流電源の並列運転制御方式としては
第１図に示す様な回路方式がとられていた。すなわち、
図において１１はＡＶＲで同一容量の機種が複数個並列
に接続されている。１２は前記、ＡＶＲＫ内蔵されてい
る逆り形過電流垂下保護回路、１０は負荷である。Conventionally, a circuit system as shown in FIG. 1 has been used as a parallel operation control system for this type of DC power supply. That is,
In the figure, reference numeral 11 denotes an AVR, in which a plurality of AVR models having the same capacity are connected in parallel. 12 is the above-mentioned reverse type overcurrent droop protection circuit built into the AVRK, and 10 is a load.
この様に構成された従来の並列電源接続方式において、
運転時の留意点は並列に接続された電源相互間の負荷バ
ランス？取ることで、仮に負荷バランスが崩れた場合に
も定格容量を越えての負荷分担は防止しなければならな
い。そして出力電圧設定値のバラツキや周囲温度の変化
等により各ＡＶＨの出力電圧が僅かでも変動すると負荷
分担の不均衡が生じるため、これｔ補正する目的で過電
流垂下保護回路が使用されていた。また通常の過電流垂
下保護回路は負荷異常時の電源保護、および電源誤動作
時の負荷の２次破損χ防止することにあり、ＡＶＲ負荷
分担の設定値は各定格出力電流の１００〜１４０％の範
囲内に決められている。In the conventional parallel power supply connection system configured in this way,
Is it important to pay attention to load balance between power supplies connected in parallel during operation? By doing so, even if the load balance collapses, it is necessary to prevent load sharing exceeding the rated capacity. If the output voltage of each AVH fluctuates even slightly due to variations in output voltage setting values, changes in ambient temperature, etc., an imbalance in load sharing will occur, so an overcurrent droop protection circuit has been used to compensate for this. In addition, a normal overcurrent droop protection circuit is designed to protect the power supply in the event of a load abnormality and to prevent secondary damage to the load in the event of a power supply malfunction. determined within the range.
電源並列接続時の負荷バランス用に使用する場合（は、
この負荷分担の設定値χすべての電源について、定格出
力電流内に設定しておき他のＡＶＲよりも大きな負荷分
担が起り得る場合にはこれＹ抑えるために過電流垂下保
護回路ン動作させ、その出力電圧ン低下させることによ
って他の電源にも均一な負荷分担ン行わせる様九制御し
ていた。When used for load balancing when power supplies are connected in parallel (
This load sharing setting value χ is set for all power supplies within the rated output current, and if a larger load sharing than other AVRs may occur, the overcurrent droop protection circuit is activated to suppress this. By lowering the output voltage, it was controlled so that the other power supplies would share the load evenly.
しかし、第１図に示す様な従来の直流電源並列運転制御
方式では出力電圧および過電流垂下回路の設定値の不均
衡、または垂下特性がシャープでないこと、あるいは周
囲温度の変化を考慮したとき等に過負荷領域での使用Ｚ
垂下保護回路の設定点、すなわち、出力容量値ン定格容
量値の７０〜８０俤に限定して使用せざるン得ず、各々
の電源の合計容量まで側底使用することが困難であると
いう欠点があった。また、負荷が変動する様な軽負荷で
の使用状態では、負荷バランスが取りにくく最悪の場合
、複数個のＡＶＨのうち、あるものは過電流垂下特性の
設定点で動作しているものもあれば、他は無負荷の状態
で動作するといった運転状態が発生した。However, with the conventional DC power supply parallel operation control method as shown in Figure 1, there may be problems such as an imbalance in the set values of the output voltage and overcurrent droop circuit, or when the droop characteristics are not sharp, or when taking into account changes in the ambient temperature. Use in overload area Z
The disadvantage is that it has to be used only at the set point of the droop protection circuit, that is, between 70 and 80 of the output capacitance value and the rated capacity value, and that it is difficult to use the bottom of the circuit up to the total capacity of each power supply. was there. In addition, under light load conditions where the load fluctuates, it is difficult to maintain load balance, and in the worst case, some of the multiple AVHs may operate at the set point of the overcurrent droop characteristic. For example, an operating condition occurred in which the other devices were operating under no-load conditions.
本発明は上記のような従来の欠点χ除去するためになさ
れたもので、並列電源の相互間に負荷電流バランサー回
路？夫々挿入し、その過電流バランサー回路によって夫
々のＡＶＨの定格容量値までは少くとも使用可能とし、
仮に負荷変動が発生した時にもＡＶＲ相互の負荷分担を
直ちに均−九制御して高効率の電源使用ン可能とした直
流電源並列運転制御方式？提供するととｔ目的とする。The present invention was made to eliminate the above-mentioned drawbacks of the conventional technology, and is a load current balancer circuit between parallel power supplies. The overcurrent balancer circuit allows each AVH to be used at least up to its rated capacity value.
Even if load fluctuations occur, the DC power supply parallel operation control method immediately controls the mutual load sharing between AVRs evenly and enables high-efficiency power supply usage. The purpose is to provide.
以下、本発明の一実施例を図について説明する。Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
図中、第１図と同一の部分は同一の符号乞以って図示し
た第２図において、１，２．５は並列に接続された電源
装置（ＡＶＲ）で、このうち１は基準のＡＶＲとなるマ
スターＡＶＲ，２はスレーブＡ −Ａ Ｖ Ｒ、５ハス
ｖ −ｊ Ｂ −Ａ Ｖ Ｒ、４〜６ ハ各ＡＶＨの出
力電流を検出する検出抵抗、７はマスターＡＶＲ１と、
Ｘ、Ｖ−７”Ａ−ＡＶＨ２の出力電流χ比較する比較器
、８はマスターＡＶＲ１とスレーブＢ−ＡＶＲ５の出力
電流比較器、９はスレーブＡ−ＡＶＲ２に内蔵する出力
電圧安定化制御回路である。In FIG. 2, the same parts as in FIG. 1 are given the same reference numerals. In FIG. The master AVR, 2 is the slave A-A VR, 5 is the detection resistor for detecting the output current of each AVH, 7 is the master AVR1,
X, V-7" Comparator for comparing the output current χ of A-AVH2, 8 is the output current comparator of master AVR1 and slave B-AVR5, and 9 is the output voltage stabilization control circuit built in slave A-AVR2. .
この様な構成からなる本発明忙おいて、回路動作を以下
説明する。すなわち、本発明の特徴は複数個のＡＶＨの
うち１ｍをマスターＡＶＲとし他ｔスレーブＡＶＲとす
るものでマスターＡＶＲ１に流れる負荷電流１１とスレ
ーブＡＶＲ２及び５に流れる負荷電流１２．１３ｙａ−
夫々比較しその比較結果が常に等しくなるように負荷電
流バランス用閉ループ制御回路ｔスレーブ側の各々のＡ
ＶＨ２及び５の出力電圧安定化用閉ループ制御回路に付
加したものである。例えばマスターＡＶＲ１より負荷１
０に流れる電流１１がスレーブＡ−ＡＶＲ２より負荷に
流れる電流１２より大で負荷電流バランスがくずれてい
るとすると、図示の負荷電流バランス用閉ループ制御回
路は負荷電流比較器７によりマスターＡＶＲ１の負荷電
流１１に対して、スレーブＡ−ＡＶＲ２の負荷電流が少
ないととン検出し比較器７の出力電圧レベルを低下させ
スレーブＡ−ＡＶＲ２の出力電圧安定化用の閉ループ制
御回路に加える。この入力信号によりスレーブＡ−ＡＶ
Ｒ２の出力電圧安定化用の閉ループ制御回路はスレーブ
Ａ−ＡＶＲ２の出力電圧が低いことｔ検出し、出力電圧
を上げるようＶＣ動作する。これによりスレーブＡ−ｋ
ＶＲ２の負荷電流１２は増加する。スレーブＡ−ＡＶＲ
Ｚ側に流れる負荷電流１２が大きい場合には前記とは逆
の動作りして出力電圧を下げ負荷電流１２′％：低減さ
せる。従って負荷電流バランス用閉ループ制御回路ン加
えたスレーブＡ−ＡＶＲ２の出力電圧安定化閉ループ制
御回路としては常圧マスターＡＶＲ１の負荷電流１１ス
レーブＡ−人ＶＲ２の負荷電流１２が等しくなるように
スレーブＡ−ＡＶＲ２の出力電圧を調整する。また並列
接続するＡＶＨの個数乞増す場合には、スレーブ側の電
源がスレー７’Ａ−ＡＹ Ｒ１スＶ−７’Ｂ−ＡＶＲ−
＠＊ｅ＊等増スことになり、マスターＡＶＲとスレーブ
Ａ−ＡＹＲ１マスターＡＶＲとスレーブＢ−ＡＶＲ・・
・曾・の負荷電流χ夫々比較し常にバランスが保たれる
ようにスレーブ側のＡＶＨの出力電圧を各々に調整し、
ＡＶＲ全体として負荷電流のバランスがとれるように動
作する。The circuit operation of the present invention having such a configuration will be explained below. That is, the feature of the present invention is that 1 m of the plurality of AVHs is the master AVR and the others are slave AVRs, and the load current 11 flowing to the master AVR 1 and the load current 12.13 ya- flowing to the slave AVRs 2 and 5
Closed loop control circuit for load current balance t Each A on the slave side
This is added to the closed loop control circuit for stabilizing the output voltage of VH2 and VH5. For example, load 1 from master AVR1
Assuming that the current 11 flowing to the slave A-AVR 2 is larger than the current 12 flowing to the load from the slave A-AVR 2 and the load current balance is out of balance, the illustrated closed-loop control circuit for load current balance uses the load current comparator 7 to adjust the load current of the master AVR 1. 11, when the load current of the slave A-AVR2 is low, it is detected that the output voltage level of the comparator 7 is lowered and applied to the closed loop control circuit for stabilizing the output voltage of the slave A-AVR2. This input signal causes slave A-AV
The closed loop control circuit for stabilizing the output voltage of R2 detects that the output voltage of slave A-AVR2 is low and performs a VC operation to increase the output voltage. This allows slave A-k
The load current 12 of VR2 increases. Slave A-AVR
When the load current 12 flowing to the Z side is large, the operation is opposite to that described above to lower the output voltage and reduce the load current by 12'%. Therefore, as a closed loop control circuit for stabilizing the output voltage of slave A-AVR2, which has been added to the closed loop control circuit for load current balance, the load current 11 of normal pressure master AVR1 is adjusted so that the load current 12 of slave A - person VR2 is equal. Adjust the output voltage of AVR2. Also, if the number of AVHs connected in parallel increases, the power supply on the slave side should be
@*e* etc. will be increased, master AVR and slave A-AYR1 master AVR and slave B-AVR...
・Compare the load currents χ and adjust the output voltage of the AVH on the slave side so that the balance is always maintained.
The AVR operates so that the load current is balanced as a whole.
従って、本発明によれば並列運転方式のＡＶＨの負荷電
流が夫々、マスターとスレーブＡＶＨの出力電流との比
較によって帰還制御されて常に均等に分割されるため、
各々のＡＶＨの定格容量一杯まで使用＝Ｉ能になり、ま
た負荷電流が変イしした場合にも常に速やかに出力追従
し、負荷電流の均等分割がなされるため信頼性の高い直
流電源の並列運転制御方式χ提供できる効果がある。Therefore, according to the present invention, the load currents of the parallel operation type AVHs are feedback-controlled by comparing the output currents of the master and slave AVHs and are always divided equally.
Each AVH can be used up to its rated capacity = I function, and even if the load current changes, the output always follows quickly, and the load current is divided evenly, making it possible to connect highly reliable DC power supplies in parallel. The operation control method χ has the effect that it can provide.
更に、本発明は標準設定機種を極力限定した電源装置の
標準化７図ることができるため、同一品種のＡＶＨの量
産化が可能となり経済的な効果が極めて大きい。Furthermore, since the present invention allows standardization of power supply devices with as few standard models as possible, it is possible to mass-produce AVHs of the same type, which has an extremely large economical effect.
第１図は従来の直流電源並列運転制御方式のブロック構
成図、第２図は本発明の一実施例を示す同上図である。
１０、、、負荷、１１ ・１ａｆｆｉｉｉ源（ＡＹ Ｒ
）、１２・・・逆り形過電流垂下保護回路、１・・・マ
スターＡＶＲ，２，５・・・スレーブＡＶＲ，４〜６・
・・負荷電流検出抵抗、７〜８・・・比較器、９・・・
スレーブ出力電圧安定化制御回路。
なお、図中同一符号は同−又は相当部分ケ示す。
代理人 葛野信−（ほか１名）
１１！１図
２
第 ２ 図FIG. 1 is a block diagram of a conventional DC power supply parallel operation control system, and FIG. 2 is a diagram showing an embodiment of the present invention. 10, Load, 11 ・1affiii source (AY R
), 12... Reverse overcurrent droop protection circuit, 1... Master AVR, 2, 5... Slave AVR, 4-6.
...Load current detection resistor, 7-8...Comparator, 9...
Slave output voltage stabilization control circuit. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent Makoto Kuzuno (and 1 other person) 11!1 Figure 2 Figure 2
Claims (1)
スター電源と、前記マスター電源以外の並列電源をスレ
ーブとするスレーブ電源と、前記マスター電源に流れる
負荷電流とストレープ電源に流れる負荷電流とを夫々比
較する出力電流比較回路とｔ備え、前記電流比較回路の
出力信号ンスレープ側電源の出力電圧安定化回路に夫々
加え、スレーブ側電源の出力電圧を調整し並列電源負荷
電流の均一的に制御することｔ特徴とする直流電源の並
列運転制御方式。A master power supply in which one of the DC power supplies connected in parallel is a master, a slave power supply in which a parallel power supply other than the master power supply is a slave, a load current flowing to the master power supply, and a load current flowing to the striped power supply, respectively. An output current comparison circuit for comparison is provided, and the output signal of the current comparison circuit is added to the output voltage stabilizing circuit of the slave side power supply, respectively, and the output voltage of the slave side power supply is adjusted to uniformly control the parallel power supply load current. tCharacteristic parallel operation control method for DC power supplies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57115983A JPS596728A (en) | 1982-07-01 | 1982-07-01 | Parallel operation control system for dc power sources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57115983A JPS596728A (en) | 1982-07-01 | 1982-07-01 | Parallel operation control system for dc power sources |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS596728A true JPS596728A (en) | 1984-01-13 |
Family
ID=14675966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57115983A Pending JPS596728A (en) | 1982-07-01 | 1982-07-01 | Parallel operation control system for dc power sources |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS596728A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63301002A (en) * | 1987-05-30 | 1988-12-08 | Tokai Rika Co Ltd | Prism nonglaring mirror |
| JPS6440241U (en) * | 1987-09-04 | 1989-03-10 | ||
| JPH01129718A (en) * | 1987-11-04 | 1989-05-23 | Internatl Business Mach Corp <Ibm> | Dc stabilized source |
| JP2007221958A (en) * | 2006-02-20 | 2007-08-30 | Power System:Kk | Charging device for capacitor storage power supply |
| JP2007259648A (en) * | 2006-03-24 | 2007-10-04 | Power System:Kk | Charger for capacitor storage power supply |
| JP2020058161A (en) * | 2018-10-03 | 2020-04-09 | 株式会社日立パワーソリューションズ | Power demand-supply system |
-
1982
- 1982-07-01 JP JP57115983A patent/JPS596728A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63301002A (en) * | 1987-05-30 | 1988-12-08 | Tokai Rika Co Ltd | Prism nonglaring mirror |
| JPS6440241U (en) * | 1987-09-04 | 1989-03-10 | ||
| JPH01129718A (en) * | 1987-11-04 | 1989-05-23 | Internatl Business Mach Corp <Ibm> | Dc stabilized source |
| JP2007221958A (en) * | 2006-02-20 | 2007-08-30 | Power System:Kk | Charging device for capacitor storage power supply |
| JP2007259648A (en) * | 2006-03-24 | 2007-10-04 | Power System:Kk | Charger for capacitor storage power supply |
| JP2020058161A (en) * | 2018-10-03 | 2020-04-09 | 株式会社日立パワーソリューションズ | Power demand-supply system |
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