JPH01286745A - Flywheel type uninterruptible power source - Google Patents

Flywheel type uninterruptible power source

Info

Publication number
JPH01286745A
JPH01286745A JP63115695A JP11569588A JPH01286745A JP H01286745 A JPH01286745 A JP H01286745A JP 63115695 A JP63115695 A JP 63115695A JP 11569588 A JP11569588 A JP 11569588A JP H01286745 A JPH01286745 A JP H01286745A
Authority
JP
Japan
Prior art keywords
inverter circuit
flywheel
circuit
uninterruptible power
signal lines
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
JP63115695A
Other languages
Japanese (ja)
Inventor
Isao Takahashi
勲 高橋
Kazuhiko Tanaka
一彦 田中
Iwao Asada
浅田 岩男
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP63115695A priority Critical patent/JPH01286745A/en
Publication of JPH01286745A publication Critical patent/JPH01286745A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To reduce in weight and size a flywheel type uninterruptible power source by integrating a driving inverter circuit with a flywheel unit, and mechanically and electrically applying and connecting them. CONSTITUTION:In an uninterruptible power source, a converter circuit 2 is integrated with an inverter circuit 3, it is structurally isolated from a driving inverter circuit 5, the inverter circuit 5 is mechanically integrated with a flywheel unit 6, and an electric communication of both is conducted only by a line of DC power. Accordingly, a vibration sensor 10 is connected to the inverter circuit 5 by two signal lines 21, a displacement sensor 8 is connected to the inverter circuit 5 by four signal lines 22, connected to the counter 7 by four signal lines 23, and connected to a bearing temperature sensor 9 by two signal lines 24. Thus, since the mechanical sections of both are so composed as to become the case of its housing as it is, it can be reduced in size and number of components.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、電力エネルギーを運動エネルギーとして貯
蔵し、必要に応じて電力エネルギーに変換し供給するフ
ライホイール式エネルギー貯蔵装置によって、停電発生
時に停電補償を行なうフライホイール式無停電電源装置
に係り、特に装置全体の組立構成の改良に関するもので
ある。
Detailed Description of the Invention [Industrial Application Field] This invention stores electrical energy as kinetic energy, converts it into electrical energy as needed, and supplies it to the user using a flywheel type energy storage device that can be used to prevent power outages in the event of a power outage. The present invention relates to a flywheel type uninterruptible power supply device that performs compensation, and particularly relates to an improvement in the assembly configuration of the entire device.

〔従来の技術〕[Conventional technology]

第6図は一般的な無停電電S装置の回路構成図を示すも
ので、ムC入力電力(1)は、コンバータ回路(2)と
接続され電力を整流するようになっている。
FIG. 6 shows a circuit configuration diagram of a general uninterruptible power supply S device, in which input power (1) of the mu C is connected to a converter circuit (2) to rectify the power.

またコンバータ回路(2)は、インバータ回路(3)を
介して負荷(4)と接続されている。さらに、コンバー
タ回路(2)およびインバータ回路(3)との間には、
駆動イJバータ1m 路(5)を介してフライホイール
am(6)が接続されている。フライホイール装置(6
)からの交流入力を、駆動インバータ回路(5)によっ
て直フライホイール* t (6)に内蔵されr:回転
数カウンタで、フライホイールの回転数および回転位1
Kを検出するものである。(8)は同じくフライホイー
ル装置(6)に内蔵された変位センサーで、ロータの振
れを検出するものである。(9)は同じ、くフライホイ
ール装置<6)に内蔵された温度検出センサで、フライ
ホイールの軸受部の温度を検出するものである。
Further, the converter circuit (2) is connected to a load (4) via an inverter circuit (3). Furthermore, between the converter circuit (2) and the inverter circuit (3),
A flywheel am (6) is connected to the drive converter 1m via a path (5). Flywheel device (6
) is input by the drive inverter circuit (5) to the direct flywheel * t (6).
This is to detect K. (8) is a displacement sensor also built into the flywheel device (6), which detects the vibration of the rotor. (9) is a temperature detection sensor built into the flywheel device <6), which detects the temperature of the bearing portion of the flywheel.

αOはフライホイール装#(6)の近傍に配設された1
lli震器で、地震発生時または大きな衝撃発生時、装
置全体への保護のためにフライホイール装置t(6)の
運転を停止するためのものである。、a5は停電または
瞬停の発生を検出する停電信号線で、入力(1)側が停
電または調停が発生したときに入力電圧降下を検出しフ
ライホイールfi t (6)のもつ回転エネルギーを
電力として放電し駆動インバータ回路(5)によって交
流から直流に逆変換させる。なお、回転数カウンタ(7
)、変位センサ(8)、温度検出センサ(9)。
αO is 1 located near flywheel equipment #(6)
This is to stop the operation of the flywheel device t(6) in order to protect the entire device in the event of an earthquake or a large shock in the lli earthquake. , a5 is a power outage signal line that detects the occurrence of a power outage or instantaneous power outage, and the input (1) side detects an input voltage drop when a power outage or arbitration occurs, and uses the rotational energy of the flywheel (6) as electric power. It is discharged and reversely converted from alternating current to direct current by the drive inverter circuit (5). In addition, the rotation number counter (7
), displacement sensor (8), and temperature detection sensor (9).

感震器αG、停電信号線Iはそれぞれ全て直流−交流変
換器(5)に接続されている。■はフライホイール装置
(6)を真空状態に保つTコめの真空ポンプ、口は真空
ポンプ■とフライホイール*tIt(6)とを結合する
真空用ホース、α4はフライホイール1it(6)の真
空状況を検出する真空測定子、(至)は真空測定子α4
によって真空ポンプ■の運転を制御するリレーである。
The seismic sensor αG and the power outage signal line I are all connected to a DC-AC converter (5). ■ is a T-shaped vacuum pump that keeps the flywheel device (6) in a vacuum state, the mouth is a vacuum hose that connects the vacuum pump ■ and the flywheel*tIt (6), and α4 is the one for the flywheel 1it (6). Vacuum sensor to detect vacuum status, (to) vacuum sensor α4
This is a relay that controls the operation of the vacuum pump ■.

次に装置全体の構成について、第7図の全体構成図によ
って詳述する。
Next, the configuration of the entire apparatus will be explained in detail with reference to the overall configuration diagram of FIG. 7.

従来装置は、コンバータ回路(2)、インバータ回路(
3)および駆動インバータ回路(5)を制御部として構
造的にまとめ、フライホイール装置(6)および真空ポ
ンプυを機械部分として構造的にまとめ、両者との電気
的なやりとりを多くの信号線、動力線を通じて行なわれ
ている。すなわち感震器aOと駆動インバータ回路(5
)との間は信号線(至)は2本、変位センサ(8)と駆
動インバータ回路(5)との間の信号練りは4本、カウ
ンタ(7)と駆動インパーク回路(5)との信号線(2
)は4本、軸受温度センサ(9)と駆動インバータ回路
(5)との間の信号線(至)は2本、フライホイール装
置(6)と駆動インバータ回路(5)との動力線(至)
の8本、真空測定子α尋と駆動インバータ回路(5)内
に内蔵されたリレー(至)との信号l1lI(ホ)は4
本が制御部と機械部との間に接続されている。
The conventional device has a converter circuit (2) and an inverter circuit (
3) and the drive inverter circuit (5) are structurally combined as a control unit, the flywheel device (6) and the vacuum pump υ are structurally combined as a mechanical part, and electrical communication between them is performed using many signal lines, This is done through power lines. In other words, the vibration sensor aO and the drive inverter circuit (5
), there are two signal lines (to), four signal lines between the displacement sensor (8) and the drive inverter circuit (5), and a line between the counter (7) and the drive impark circuit (5). Signal line (2
) are 4, signal lines (to) between the bearing temperature sensor (9) and the drive inverter circuit (5) are 2, and power lines (to) between the flywheel device (6) and the drive inverter circuit (5) are 4. )
The signal l1lI (e) between the vacuum measuring head α and the relay (to) built in the drive inverter circuit (5) is 4.
A book is connected between the control part and the mechanical part.

以上のよりに構成された無停電mIMi童は、第8図に
示すごとく筐体内に収納されている。第8図は無停電電
源装置が筐体内に収納され1こ状態を示す斜視図で、(
至)は鋼板によって箱形に構成されたフレームで、この
フレーム翰の箱部分には仕切板−が設けられ上、下の2
つの室に仕切られている。(至)はフレーム(至)の前
面を覆り前扉で、フレーム(至)の前面側端に開閉自在
に取付けられている。
The uninterruptible mIMi device configured as described above is housed in a housing as shown in FIG. Figure 8 is a perspective view showing the uninterruptible power supply in a single state when it is housed in the housing.
(to) is a box-shaped frame made of steel plates, and a partition plate is installed in the box part of this frame to separate the top and bottom two.
It is divided into two rooms. (to) is a front door that covers the front of the frame (to), and is attached to the front end of the frame (to) so that it can be opened and closed.

そしてこのフレーム(至)内には、上述したコンパ−9
IH1路(2)、インバータ回路(3)などを構成する
半導体、抵抗などが板金、タイカストなどによって骨格
が構成される筐体に取付けられ電気部分−を構成【、・
て、上記フレーム■内に収納されている。ま7:同様に
してフライホイール装置(6)、真空ポンプυなどが板
金、ダイカストなどlζよって骨格が構成される筐体に
収納され機mm分(至)を構成【・て上記フレーム(至
)の他方の室に収納されている。
And within this frame (to) is the comparator 9 mentioned above.
Semiconductors, resistors, etc. that make up the IH1 path (2), inverter circuit (3), etc. are attached to a casing whose skeleton is made of sheet metal, tie-casting, etc., forming the electrical part.
It is housed in the frame ■ above. 7: In the same way, the flywheel device (6), vacuum pump υ, etc. are housed in a casing whose skeleton is made of sheet metal, die-casting, etc. to form the machine mm (to). It is stored in the other room.

〔発甲が解決しよう亡する課題〕[Issues that Hakko will try to solve]

上記のようなフライホイール式無停電電Il[si置で
は、電気部分−がコンバータ回路(2)、インバータ回
路(3)などを構成する半導体、抵抗などを板金。
In the above-mentioned flywheel type uninterruptible power supply system, the electrical parts include semiconductors, resistors, etc. that constitute the converter circuit (2), inverter circuit (3), etc., and are made of sheet metal.

ダイカストなどによって構成されたものが筐体内に収納
取付けられ機械部分(至)のフライホイール装置(6)
、真空ポンプ■などが板金などによって構成された筐体
内に収納取付けられて構成され、さらに電気部分−0槻
械部分(至)が板金からなろフレーム(至)内に収納さ
れてそれぞれ電気部分−と機械部分■とが電気的に接続
されているので、装置自体が大きくなりさらに3を鳳も
重くなるとともに構成部品も多くコスト高となるなどの
課題があった。
Flywheel device (6), which is a mechanical part (toward) that is constructed of die-casting etc. and is housed and installed inside the housing.
, a vacuum pump, etc. are housed and installed in a case made of sheet metal, etc., and the electrical parts are housed in a frame made of sheet metal, and the electrical parts are housed inside a frame made of sheet metal. Since the and mechanical parts (2) are electrically connected, there are problems in that the device itself becomes large and heavy, and there are many component parts, resulting in high costs.

この発明は、かかる課題を解決するためになさ   ゛
れ1こもので、am自体を小型化するとともに重量を軽
くしたフライホイール式無停電1[装置を得ろことを目
的とする、 〔課題を解決するための手段〕 この発明に係るフライホイール式無停電竜源装置は、イ
ンバータを構成する機構部分をそのまま筐体のケースと
なる様構成されπ主回路インバータ部と、同様に駆動イ
ンバータの機構部分がそのまま筐体のケースとなる椋褌
成された駆動用イ:/バータ部とを備え、この駆動用イ
ンバータ部にフライホイール装置を内蔵[・、かつt記
主回路インバータ部と駆動用インバータ部とは機械的に
接合し、さらに電気的に接合されたものである。
This invention was made in order to solve these problems, and the object is to obtain a flywheel-type uninterruptible device 1 that reduces the size and weight of the AM itself. [Means for achieving this] The flywheel-type uninterruptible power source device according to the present invention is configured such that the mechanical part constituting the inverter serves as the case of the casing, and the mechanical part of the drive inverter is similar to the main circuit inverter part. The main circuit inverter section and the drive inverter section are equipped with a flywheel device built into the drive inverter section. are mechanically bonded and further electrically bonded.

〔作用〕[Effect]

この発明においては、主回路インバータ部と駆動用イン
バータ部のそれぞれ機構部分がそのまま0体のケースと
なる様構成されており、各々が機械的に接合し、さらに
電気的に接合される。
In this invention, the mechanical parts of the main circuit inverter part and the drive inverter part are constructed so as to function as a zero-body case as they are, and are connected mechanically and further electrically.

〔発明の実施例〕[Embodiments of the invention]

紀1図はこの発駅の一男施例番ζよる無停w1.電源装
置の全体構成図で、コンバータ回路(2)、インバータ
回路(3ンとが一体化され、この一体化されたコンバー
タ回路(2)、インバータ回路(3)と駆動インバータ
回路(5)tを栖造的に分離し、駆動インバータ回路(
5)とフライホイール1fili(6)とを機械的に一
体化し両者の電気的なや+1とりを直流電力線のみによ
って行う。
Figure 1 shows the non-stop service w1 from Kazuo's regular number ζ at this departure station. In the overall configuration diagram of the power supply device, a converter circuit (2), an inverter circuit (3) are integrated, and the integrated converter circuit (2), inverter circuit (3), and drive inverter circuit (5) are integrated. The drive inverter circuit (
5) and the flywheel 1fili (6) are mechanically integrated, and the electrical difference between the two is performed only by a DC power line.

すなわち、感震器αOと駆動インバータ回路(5)との
間の信号*cynは2本、変位センサ(8)と駆動イン
バータ回路(5)との信号線@は4本、カウンタ(7)
と駆動インバータ回路(5)との信号線翰は4本、軸受
mKセンサ(9)と駆動インバータ回路(5)との信号
線(至)は2本、g動インバータ回路(5)とコンバー
タ回1M(2)、インバータ回路(3)との直流動力線
(7)は2本、真空ポンプ@とリレー四との動力線OD
は2本、真空測定子α弔と駆動インバータ回路(5)と
の信号n(至)は4本で接続されている。さらにフライ
ホイール装置(6)と駆動インバータ回路との動力線の
接続は短く内部インバータに接続ξれている。tlこ信
号線(支)、翰、(至)、(2)は至で短<LP板の内
にコネクターを介して接続され、入出力信号のやりと會
)を行なう乙さができる。
That is, there are two signal lines *cyn between the vibration sensor αO and the drive inverter circuit (5), four signal lines @ between the displacement sensor (8) and the drive inverter circuit (5), and a counter (7).
There are four signal lines between the bearing mK sensor (9) and the drive inverter circuit (5), two signal lines between the bearing mK sensor (9) and the drive inverter circuit (5), and a signal line between the g-motion inverter circuit (5) and the converter circuit. 1M (2), 2 DC power lines (7) with inverter circuit (3), power line OD between vacuum pump @ and relay 4
is connected by two wires, and the signal n (to) between the vacuum measuring head α and the drive inverter circuit (5) is connected by four wires. Furthermore, the power line connection between the flywheel device (6) and the drive inverter circuit is short and connected to the internal inverter. The signal lines (branches), wires, (to), and (2) are connected to the LP board via connectors, allowing input/output signals to be exchanged.

次にフライホイール* * (6)と駆動インバータ回
路(6)との一体化のr4成の一実施例を第2図によっ
て説明する。
Next, an embodiment of the r4 configuration in which the flywheel * * (6) and the drive inverter circuit (6) are integrated will be described with reference to FIG.

フライホイール装置(6)はベースαGに設置すtt、
、このフライホイール装置(6)の底部に駆動インバー
タ回路(57が直接装着されている。そし、て駆動イン
バータ回路(5)は上記第1図にて説明し、fこコンバ
ータ回路(2)、インバータ回路(3)に直流の2本の
動力線(至)によ−て接続されている。
The flywheel device (6) is installed on the base αG,
A drive inverter circuit (57) is directly attached to the bottom of this flywheel device (6).The drive inverter circuit (5) is explained in FIG. 1 above, and the converter circuit (2), It is connected to the inverter circuit (3) by two DC power lines.

第8図、第4図はこの発明の一実施例による主回路イン
バータ部と、駆動用インバータ部との4成を示す斜視図
で、第8図は主回路インバータ部の構成を示す部分破断
斜視図である。(至)は板金。
8 and 4 are perspective views showing four components of a main circuit inverter section and a driving inverter section according to an embodiment of the present invention, and FIG. 8 is a partially cutaway perspective view showing the structure of the main circuit inverter section. It is a diagram. (to) is sheet metal.

ダイカストなどによって形成されり筐体のケースで、こ
のケース0内6ζは抵抗、コンデンサ、リアクトル、ト
ランジスタモジ、−ルなどのコンバータ回路(2)、イ
ンバータ回路(3)が一体に収納装着されて、主回路イ
ンバータ回路が構成されている。
This is a housing case made of die-casting, etc., and the converter circuit (2) and inverter circuit (3), such as resistors, capacitors, reactors, transistor modules, etc., are integrally housed and installed in the 6ζ inside the case. A main circuit inverter circuit is configured.

第4図は駆動用インバータ部の構成を示す部分破断斜視
図であり、(7)は板金、ダイカストなどによって形成
された筐体のケースで、このケース(7)円Cζは上記
と同様に抵抗、コンデンサ、リアクトル、トランジスタ
モジュールなど駆動インバータ回路(5)が収納′@曹
されろとともに、フライホイール装置(6)がケース(
至)の上部に載置されて駆動用インバータf!I6(至
)を構成している。
FIG. 4 is a partially cutaway perspective view showing the configuration of the drive inverter section, and (7) is a case of a housing made of sheet metal, die-casting, etc. In this case (7), the circle Cζ is a resistance similar to the above. The drive inverter circuit (5), including capacitors, reactors, and transistor modules, is housed in the case (5), and the flywheel device (6) is housed in the case (5).
) is placed on top of the drive inverter f! It constitutes I6 (to).

そして第5図に示すように駆動用インバータ邸(至)に
主回路インバータ部(至)が載置され、主回路インバー
タ部−と駆動用インバータ部側とがボルトなどの結合部
材によってそれぞれ機械的に接合固定されるとともに直
流電力線によりて電気的に接続されている。
Then, as shown in Fig. 5, the main circuit inverter section (toward) is placed on the drive inverter section, and the main circuit inverter section and the drive inverter section are connected mechanically by connecting members such as bolts. It is bonded and fixed to and electrically connected by a DC power line.

なお、上記実施例では駆動インバータ回路(5)はフラ
イホイール装置(6)の底部に設置した場合について説
明したが、底部に限定するものではないことは言うまで
もない。
In addition, although the drive inverter circuit (5) was installed at the bottom of the flywheel device (6) in the above embodiment, it goes without saying that the drive inverter circuit (5) is not limited to the bottom.

〔発明の効果〕〔Effect of the invention〕

この発明は以上説明したとおり、駆動インバータ回路と
フライホイール装置とを一体化し、機構部分をそのまま
筐体のケースとなる様構成された主回路インバータ部と
、同様に機構部分かそのまま筐体のケースとなる様構成
され1こ駆動用インバータ部上を機構的、*気的に接合
、接続したので、装置自体、従来お比べ軽量、小型化を
図ることができ、さらにコストにおいても部品点数が少
なくなり、安価で生産性にも優れたフライホイール式無
停電電源装置を得ることができる。
As explained above, this invention integrates a drive inverter circuit and a flywheel device, and includes a main circuit inverter section configured so that the mechanical part is used as a housing case, and a main circuit inverter section that is configured so that the mechanical part is used as a housing case. Since the drive inverter is mechanically and mechanically connected, the device itself can be made lighter and smaller than conventional products, and the number of parts is also reduced in terms of cost. Therefore, a flywheel type uninterruptible power supply device that is inexpensive and has excellent productivity can be obtained.

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

第1図〜第5図はこの発明の一実施例のフライホイール
式無停電電源装置に係り、第1図は無停電電源装置の全
体構成図、第2図はフライホイール装置と駆動インバー
タ回路上が一体に構成された状態を示す状H図、1M8
図は主回路インバータ部の部分破断斜視図、第4図は駆
動用インバータ部の部分破断斜視図、第5図は無停電電
源装置の組立状態を示す斜視図、第6因は一般的な無停
電電源装置の回路構成図、第7図、第8図は従来のフラ
イホイール式無停電電源装置に係り、第7図は無停電電
源装置の全体構成図、第8図は無停電W源装置の和文状
態を示す斜視図である。 図において、 (2)はコンバータ回路、(3)はイン
バータ回路、(5)は駆動インバータ回路、(6)はフ
ライホイール装置、((3(至)はケース、(至)は主
回路インバータ部、(至)は駆動用インバータ部である
。 なお、各図中同一符号は同一、または相当部分を示す。
Figures 1 to 5 relate to a flywheel type uninterruptible power supply according to an embodiment of the present invention, in which Figure 1 is an overall configuration diagram of the uninterruptible power supply, and Figure 2 is a diagram showing the flywheel device and drive inverter circuit. Figure H, 1M8 showing the state in which the
The figure is a partially cutaway perspective view of the main circuit inverter section, Figure 4 is a partially cutaway perspective view of the drive inverter section, Figure 5 is a perspective view showing the assembled state of the uninterruptible power supply, and the sixth cause is a general The circuit configuration diagram of the uninterruptible power supply, Figures 7 and 8 relate to the conventional flywheel type uninterruptible power supply, Figure 7 is the overall configuration diagram of the uninterruptible power supply, and Figure 8 is the uninterruptible double power supply. FIG. In the figure, (2) is the converter circuit, (3) is the inverter circuit, (5) is the drive inverter circuit, (6) is the flywheel device, ((3 (to) is the case, (to) is the main circuit inverter section. , (to) is a driving inverter section. Note that the same reference numerals in each figure indicate the same or equivalent parts.

Claims (1)

【特許請求の範囲】[Claims] インバータを構成する機構部分をそのまま筐体のケース
となる様構成された主回路インバータ部と、同様に駆動
インバータの機構部分がそのまま筐体のケースとなる様
構成された駆動用インバータ部とを備え、この駆動用イ
ンバータ部にフライホィール装置を内蔵し、かつ上記主
回路インバータ部と駆動用インバータ部とは機械的に接
合し、さらに電気的に接続されてなるフライホィール式
無停電電源装置。
It includes a main circuit inverter section configured so that the mechanical parts that make up the inverter can be used as a case for the housing, and a drive inverter section that is similarly configured so that the mechanical parts of the drive inverter can be used as a case for the housing. A flywheel type uninterruptible power supply device in which a flywheel device is built into the driving inverter section, and the main circuit inverter section and the driving inverter section are mechanically joined and electrically connected.
JP63115695A 1988-05-12 1988-05-12 Flywheel type uninterruptible power source Pending JPH01286745A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63115695A JPH01286745A (en) 1988-05-12 1988-05-12 Flywheel type uninterruptible power source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63115695A JPH01286745A (en) 1988-05-12 1988-05-12 Flywheel type uninterruptible power source

Publications (1)

Publication Number Publication Date
JPH01286745A true JPH01286745A (en) 1989-11-17

Family

ID=14668951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63115695A Pending JPH01286745A (en) 1988-05-12 1988-05-12 Flywheel type uninterruptible power source

Country Status (1)

Country Link
JP (1) JPH01286745A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6657320B1 (en) * 1999-11-03 2003-12-02 Active Power, Inc. Integrated flywheel uninterruptible power supply system
JP2009136060A (en) * 2007-11-29 2009-06-18 Ihi Corp Flywheel-type uninterruptible power supply device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6657320B1 (en) * 1999-11-03 2003-12-02 Active Power, Inc. Integrated flywheel uninterruptible power supply system
JP2009201351A (en) * 1999-11-03 2009-09-03 Active Power Inc Integrated flywheel uninterruptible power supply system
JP2009136060A (en) * 2007-11-29 2009-06-18 Ihi Corp Flywheel-type uninterruptible power supply device

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