201101644 六、發明說明： 【發明所屬之技術領域】 本發明係關於系統安定化裝置、方法、及風力發電系 統0 【先前技術】201101644 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a system stabilization apparatus, method, and wind power generation system 0 [Prior Art]
〇 先前’雖於進行系統併聯之風力發電裝置中，存在使用 鼠籠式感應發電機者，但是若因電力系統發生故障等，使 得電力系統侧之電壓產生變動之情形時，感應發電機側會 從系統侧吸收剩餘之無效電力，而無法符合系統併聯規 疋因此，藉由使用鼠籠式感應發電機之風力發電裝置進 行系統併聯之情形時，已知於風力電廠内，另行設置補償 無效電力之裝置等，使其與系統併聯規定一致。 [專利文獻1]日本特開2000-^53^號公報 【發明内容】 但，如前所述於風力電廠内另行設置無效電力補償裝 置，有必要進行土木工程等大規模之工矛呈，故#在對於具 有既存之鼠籠式感應發電機之風力發電系统之環境難以設 置無效電力補償裝置之問題。 本發明係為解決前述問題而完成者，其目的在於提供一 種不需要大規模之玉程，且可供給安定之無效電力之系統 安定化裝置、方法、及風力發電系統。 為解決前述問題，本發明採用以下各部。 本發明之第1態樣m统安定化裝置，其係應用 於發電系統者，該發電系統具備： : 另風•龍式感應發電機 140983.doc 201101644 並利用自然能源發電之發 電裝置，及設於前述發電裝置鱼 “糸統之間以切換該發電裝置與電力系統之連接及非遠 接之連接切換部；該系統妾及非連 其係當前述電力系統之電壓Μ預先Μ之變^ =岐前述發電裝置與前述電力系統成為非連接狀態之 情料，對前述電力系統供給無效電力”戈由前述 統吸收無效電力。 y' 根據如此之構成’若因落雷等造成接地故障或短路而引 起短時間:數秒以下)之電堡降低，從而使電力系統之電璧 滿足預先叹疋之變動條件’ #由連接切換部使發電裝置從 電力系統成為非連接狀態之情形時，從無效電力調整部向 電力系統供給無效電力。 二：’ ®具備用於調整無效電力之專用裝置(無效電力 調盖部），故於電力系統滿足 頂无°又疋之電壓之變動條件 之情形時’可供給安定之無效電力至電力系統，或 系統吸收無效電流。 ％ 7 /於前述系統安定化裝置中’當前述發電裝置與前述電力 糸統成為非連接狀態之情形時，亦可具備經由前述連接切 換部而與前述發電裝置連接之負載。 如此，當發電裝置與電力系統成為非連接狀態之情形 時，因精由連接切換部使發電農置與負載連接，故可使發 電裝置之輪出供給至負冑，而防止發電裝置超轉速。負載 係例如放電電阻。 、 前述系統安定化裝置中’前述無效電力調整部亦可具備 140983.doc 201101644 蓄電裝置與電力轉換器。 如此’在進行無效電力 ☆，一曰 之補償之情形中，因蓄電裝置可 為小谷篁，故無效電力調整 裝置 π正〇卩可小型化。藉此， 安裝於既存之發電系統。又， 器等。 畜電裝置係例如電池、電容 前述系統安定化裝置中，1、+. > 中别述無效電力調整部亦可呈有 用於安裝至前述電力系統之安裝部。 /、芬〇In the past, the squirrel-cage induction generator was used in the wind power generation system in which the system was connected in parallel. However, if the voltage on the power system side changes due to a power system failure, the induction generator side will Absorbing the remaining invalid power from the system side, and failing to comply with the system parallel regulation. Therefore, when the system is connected in parallel by using a wind power generator of a squirrel-cage induction generator, it is known that the wind power plant is separately provided with the compensation invalid power. The device is configured to be in line with the system. [Patent Document 1] Japanese Laid-Open Patent Publication No. 2000-^53 No. [Invention] However, as described above, an invalid power compensation device is separately provided in a wind power plant, and it is necessary to carry out large-scale construction spears such as civil engineering. # It is difficult to set an invalid power compensation device for the environment of a wind power generation system having an existing squirrel cage induction generator. The present invention has been made to solve the aforementioned problems, and an object of the present invention is to provide a system stabilization apparatus, method, and wind power generation system which can supply a stable power without a large scale. In order to solve the aforementioned problems, the present invention employs the following parts. A first aspect of the present invention is a power system for a power generation system, the power generation system comprising:: a wind-powered dragon-type induction generator 140983.doc 201101644 and a power generation device using natural energy power generation, and The connection between the power generation device fish and the connection between the power generation device and the power system and the non-distance connection; the system is not connected to the voltage of the power system; The power generating device and the power system are disconnected, and the power system is supplied with the invalid power. y' According to such a configuration, if the ground fault or short circuit caused by lightning strikes or the like causes a short time: several seconds or less, the electric castle is lowered, so that the power system of the power system satisfies the pre-sighing fluctuation condition. When the power generating device is in a non-connected state, the power generating device supplies the reactive power to the power system from the reactive power adjusting unit. 2: 'The ® has a dedicated device for adjusting the reactive power (invalid power capping unit), so when the power system satisfies the condition of the voltage fluctuation of the top and the voltage, it can supply stable power to the power system. Or the system absorbs invalid current. In the case of the above-described system stabilization device, when the power generation device and the power system are in a non-connected state, a load connected to the power generation device via the connection switching portion may be provided. As described above, when the power generation device and the power system are in a non-connected state, the power generation device is connected to the load by the connection switching unit, so that the power supply device can be supplied to the negative power supply to prevent the power generation device from exceeding the rotational speed. The load is, for example, a discharge resistor. In the system stabilization device, the ineffective power adjustment unit may include a power storage device and a power converter. In the case where the compensation of the invalid electric power ☆ and the electric power is made, the electric power storage device can be small, so the electric power adjustment device π can be miniaturized. Thereby, it is installed in an existing power generation system. Also, etc. The livestock electric device is, for example, a battery or a capacitor. In the system stabilization device described above, 1. +. > The ineffective power adjustment unit may be provided with an attachment portion for mounting to the power system. /, Fen
藉此’可容易地設置於既存之發電系統。 發明之第2態樣係一種風力發電系統，其具備：具有 鼠龍式感應發電機且利用風力能源發電之發電裝置·机於 前述發電裝置與電力系統之間以切換該發電襄置與前=電 力系統之連接及非連接之連接切換部；及，當前述電力系 統之電壓滿足預先設定之變動條件，而使前述發電裝置與 剛述電力系統成為非連接狀態之情形時，向前述電力系統 供給無效電力，或由前述電力系統吸收無效電力之無效電 力調整部。 ^ % 於前述風力發電系統中’當前述發電裝置與前述電力系 統成為非連接狀態之情形時’亦可具備經由前述連接切換 部而與前述發電裝置連接之負載。 於前述風力發電系統中，前述連接切換部於連接前返發 電裝置與前述負載之狀態下’當前述發電裝置側之輪出電 壓較既定之特定值更小之情形時，亦可將前述發電裝置之 輸出端接地。 本發明之第3態樣，係一種系統安定化方法，其係應用 140983.doc 201101644 於發電系統者，該發電系統呈借. 兄具備具有紙龍式感應發電機 且利用自然能源發電之發電裝置；及設於前述發電襄置與 電力系統之間以切換該發電装置與前述電力系統之連接及 非連接之連接切換部；系統安定化方法 裝置另行設置無效電力調整部，其係當前述電力系統之電 壓滿足預先設定之變動條件，而使前述發電裝置與前述電 力糸統成為非連接狀態之情形時，向前述電力系統供給益 效電力，或由前述電力系統吸收無效電力。 根據本發明，將達到不需要大規模之土木卫程，且可供 給安定之無效電力之效果。 【實施方式】 /以下’對本發明之系統安定化裝置、方法、及風力發電 糸統之—實施形態，參照圖式進行說明。 πίΓ〜开Ό ’對應用本發明之系統安定化裝置之風力 發電系統進行今、M ^ 籠式感應發電機。，本貫施形態之發電機’係例如鼠 電表不應用本實施形態之系統安定化裝置之風力發 電糸統1之概略構成之方塊圖。 片Π7轉子，態之風㈣ 切換邻齒輪12、發電機（發電裝置）13、連接 17、發電機側電壓感測器16、系統側電壓感剛器 1 7、發電機側 4 00 置2。 電〜感測器19、控制部18、及系統安定化裝 圖1中，游* t片風車葉片1〇安裝於風車轉子11。於風車 140983.doc 201101644 轉子11之主軸，經由具有特定變速比之齒輪12而連接發電 機13。發電機13係藉由例如3相之電力線與連接切換部μ 連接，而與電力系統i 5之連接與非連接係藉由連接切換部 14進行切換。又，連接切換部14之連接之切換，係藉由控 . 制部1 8進行。 . X电械側电壓感測盗16係計測比連接切換部14較靠近發 •機3側之電壓’ @ §十測結果輸出至控制部1 8。系統側電 〇 ㈣測$ 17係計測比起連接切換部14較靠近電力系統15側 之電® ’將計測結果輸出至控制部1 8。 土又’發電機側電流感冑器19係計測比起連接切換部⑷交 靠近發電機側之電流，將計測結果輸出至無效電力調整 部21。 控制㈣基於發電機側電壓感測器16、及系統側電壓感 m等所檢測出之電壓值，進行連接切換部以之連接之 冬及系統女定化裝置2(詳細如後所述）之控制。 〇 ^發生產生系統故障等使得電力系統15之電力滿足預先 18疋t動條件之情形時，連接切換部14根據來自控制部 動作，將發動機13與電力系統15從連接狀態切 於^連接狀態。具體而言’當藉由系統側電壓感測器17 • 檢測出之電懕.、发^ Α 換㈣將^ 之變動條件之情形時，連接切 電機η淑機U與電力系統15切換至非連接狀態，使發 態下，^° Χ ’ &發電_與負載20連接之狀 雷 Χ $機側電壓感測器16所檢測出之發電機13側之 电竣為低於特定/ 值之情形時，連接切換部14將發電機13與 140983.doc 201101644 負載20切換至非連接狀態，使發電機13之輸出端子接地。 此外，於該狀態下，當達到發電機13側之風速條件，成為 可與電力系統15側併聯之狀態之情形時，連接切換部⑷更 將發電機13與電力系統15切換至連接狀態。 系統安定化裝置2具備負載顺無效電力調整部2卜 、當發電機13與電力系統15轉為非連接狀態之情形時，負 載2〇經由連接切換部14與發電㈣連接。具體而言，負載 2〇係放電電阻，消耗來自發電機13之輸出電力。 當負載20與發電機13經由連接切換㈣為連接狀態 :‘月：時’風車葉片10藉由控制部18或與控制部18分開設 之:制他控制部控制傾斜角’進行降低風車葉片1。之轉數 負=20與發電機13經由連接切換㈣連接之狀態下，可 子^機13與電力系統15剛成為非連接狀態後之風車轉 16产測出數之急速上昇。又’當藉由發電機側電壓感測器 制使：發電機U側之電屡為低於特定值之情形時，控 13之榦機13與負載Μ之連接轉為非連接，使發電機 之輪出經由連接切換部Η而接地。 ^電力系統15之電屡、、笔tg站Α — 電機㈣電力壓滿足預先设定之變動條件，而使發 敕邱^ 系 為非連接狀體之情形時，盈效電力碉 整部21藉由對電力系統15供給益效電力，周 吸收盔4兩 口…、双电力或從電力系統15 > 包力，而調整無效電力。又， 具備用於安穿於雷士么 …欢^•力調整部21 具體而言二二,統15之安裝部(安裝部)。 ，、、、笔力調整部21具備蓄電裝置2U、電力 140983.doc 201101644 轉換器212、及電力調整控制部213。 電力調整控制部213基於電力系統15側之電壓，決定向 電力糸統1 5供給或從電力系統15吸收之無效電流之量，且 於電力系統15及蓄電裝置211之間調整所決定的流量之無 效電流。 〇Therefore, it can be easily installed in an existing power generation system. A second aspect of the invention is a wind power generation system comprising: a power generating device having a rat-type induction generator and generating electricity by using a wind energy source, and switching between the power generating device and the power system to switch the power generating device and the front= a connection and disconnection connection switching unit of the power system; and when the voltage of the power system satisfies a predetermined fluctuation condition and the power generation device and the power system are in a non-connected state, the power system is supplied to the power system Invalid power, or an invalid power adjustment unit that absorbs invalid power by the aforementioned power system. ^ % In the case of the above-described wind power generation system, when the power generating device and the power system are in a non-connected state, a load connected to the power generating device via the connection switching portion may be provided. In the above-described wind power generation system, when the connection switching unit is in a state where the power generation device and the load are connected before the connection, the power generation device may be smaller when the voltage at the power generation device side is smaller than a predetermined specific value. The output is grounded. A third aspect of the present invention is a system stabilization method, which is applied to a power generation system by using 140983.doc 201101644, which is provided by a power generation device having a paper dragon type induction generator and using natural energy to generate electricity. And a connection switching unit that is connected between the power generation device and the power system to switch the connection and disconnection between the power generation device and the power system; and the system stabilization method device separately provides an invalid power adjustment unit, which is the power system When the voltage satisfies a predetermined fluctuation condition and the power generation device and the power system are in a non-connected state, power is supplied to the power system, or the power system absorbs the power. According to the present invention, it is possible to achieve the effect of not requiring a large-scale civil engineering and providing a stable power for stability. [Embodiment] The following embodiments of the system stabilization apparatus, method, and wind power generation system of the present invention will be described with reference to the drawings. πίΓ~开Ό' The current, M ^ cage induction generator is applied to the wind power generation system to which the system stabilization device of the present invention is applied. The generator of the present embodiment is a block diagram of a schematic configuration of a wind power generation system 1 in which the system stabilization device of the present embodiment is not applied, for example, to a rat meter. The winding of the rotor 7 (4) switches the adjacent gear 12, the generator (power generating device) 13, the connection 17, the generator side voltage sensor 16, the system side voltage senser 1 7, and the generator side 4 00. Electric-to-sensor 19, control unit 18, and system stabilization package In Fig. 1, the wind turbine blade 1 is mounted on the windmill rotor 11. The wind turbine 140983.doc 201101644 The main shaft of the rotor 11 is connected to the generator 13 via a gear 12 having a specific gear ratio. The generator 13 is connected to the connection switching unit μ by, for example, a three-phase power line, and the connection and disconnection with the power system i 5 are switched by the connection switching unit 14. Further, the switching of the connection of the connection switching unit 14 is performed by the control unit 18. The X-electromechanical side voltage sensing thief 16 system measures the voltage closer to the transmitter 3 side than the connection switching unit 14 @ § The result of the measurement is output to the control unit 18. System side power 四 (4) The measurement of the $17 system is compared with the power of the connection switching unit 14 closer to the power system 15 side, and the measurement result is output to the control unit 18. The earth-side generator-side current sensor 19 measures the current closer to the generator side than the connection switching unit (4), and outputs the measurement result to the reactive power adjustment unit 21. Control (4) Based on the voltage value detected by the generator side voltage sensor 16 and the system side voltage sense m, etc., the connection switching unit is connected to the winter and the system female standardizing device 2 (described in detail later). control. When a system failure or the like occurs so that the power of the power system 15 satisfies the predetermined condition, the connection switching unit 14 switches the engine 13 and the power system 15 from the connected state to the connected state in accordance with the operation from the control unit. Specifically, when the condition of the change of the power is detected by the system side voltage sensor 17 and the power is detected, the connection motor is switched to the power system 15 and the power system 15 is switched to the non-power system 15 Connected state, in the state of the state, ^ ° Χ ' & power generation _ connected with the load 20 Thunder $ machine side voltage sensor 16 detected on the generator 13 side of the power is lower than the specific / value In the case, the connection switching unit 14 switches the generator 13 and the 140983.doc 201101644 load 20 to the non-connected state, and grounds the output terminal of the generator 13. Further, in this state, when the wind speed condition on the side of the generator 13 reaches the state in which it can be connected in parallel with the power system 15 side, the connection switching unit (4) further switches the generator 13 and the power system 15 to the connected state. The system stabilization device 2 includes a load-supplement-ineffective power adjustment unit 2, and when the generator 13 and the power system 15 are in a non-connected state, the load 2 is connected to the power generation (4) via the connection switching unit 14. Specifically, the load is a discharge resistor that consumes output power from the generator 13. When the load 20 and the generator 13 are switched via the connection (4) to the connected state: the 'month: hour' wind turbine blade 10 is opened by the control unit 18 or the control unit 18: the control unit controls the tilt angle to reduce the wind turbine blade 1 . When the number of revolutions is negative and the generator 13 is connected to the generator 13 via the connection (four), the number of revolutions of the wind turbine can be increased immediately after the power unit 13 and the power system 15 are in the non-connected state. In addition, when the generator side voltage sensor is used to make the power of the U side of the generator repeatedly lower than a specific value, the connection between the dryer 13 of the control 13 and the load port is turned into a non-connection, so that the generator The wheel is grounded via the connection switching unit. ^Electric power system 15 power repeatedly, pen tg station Α - motor (4) power voltage meets the pre-set fluctuation conditions, and when the hair is made into a non-connected body, the profit power 碉 whole part 21 borrows By supplying the power efficiency to the power system 15, the weekly absorption helmet 4, ... dual power or the power system 15 > In addition, it is provided with a mounting portion (mounting portion) for the safety of the NVC. The power supply adjustment unit 21 includes a power storage device 2U, a power supply 140983.doc 201101644 converter 212, and a power adjustment control unit 213. The power adjustment control unit 213 determines the amount of the reactive current supplied to the power system 15 or absorbed from the power system 15 based on the voltage on the power system 15 side, and adjusts the determined flow rate between the power system 15 and the power storage device 211. Invalid current. 〇
更具體而言，電力調整控制部213保有將電力系統15之 電壓與無效電流相對應之資訊，基於該資訊，根據系統側 電壓感測器17所檢測出之電力系統15側之電壓，而決定所 要調整之無效電流。又，電力調整控制部213會隨著電力 系統15之電壓接近通常時之基準電壓值，進行降低向電力 系統15供給或從電力系統15吸收之無效電流之量之控制。 電力轉換器212係轉換交流與直流之交流直流轉換器， 例如’若要將以電力調整控制部213決定之流量之無效電 流向電力系統15供給時，將蓄電裝置211所蓄之直流電力 轉換成交流電力，然後將轉換後之交流電力輸出至電力系 統⑴又，若要從電力系統15吸收無效電流，冑力轉換哭 212將從電力系統15取得之交流電力轉換成直流電力然 後將轉換後之電力輸出至蓄電裝置2ΐι。 人“電機U與電力系統15為連接狀態’從發電_ 輸出之f力發生變動之情形時’電力調整控制部213亦可 藉由使對應於該變動之電力量從蓄電裝置2U放電，或蓄 電於蓄電裳置叫，而使發電機13之輸出均等化。^ 如：？效電力供給部21藉由使發電機13之輸出均等 "字女定之電力供給至電力系統15。 140983.doc 201101644 下面’對本實施形態 運轉之情形與停電等時 明。 之風力發電系統1之作用 電力系統產生異常之情形 按通常 依次說 首先，對通常運轉之情形，使用圖2進行說明。 =電機側電厂竭器16對發電機⑶則之電壓以特定 計測，將該計縣輸出至無效電力調整部^ 於’,、、效電力調整部21之電力調整控制部213，判定藉 一 戊測β 16所计測之電壓值於預先決定之 =圍:（例如’相對於基準電壓±跳㈣至up叫是否 一基準電壓有所變動（步驟SA1)。 其結果’若藉由發電機側電壓感測器16所計測之電塵值 於第1電屋範圍内有所變動之情形時，為使其變動部分均 專化’進行從蓄電裝置211放電或蓄電裝置2ΐι之充電（步 驟SA2)。例如，因未達到風速條件，風力弱等理由，㈣ 根據藉由發電機側電遷感測器16及發電機側電流感測⑽ 計測之電U流所計算出之有效電力比設定值低之情形 時’電力轉換器212為補償低於設定值的部分之有效電 力，會將蓄電於蓄電裝置211之電力藉由電力轉換器212進 行直流交流轉換，而將轉換後之電力供給至電力系㈣。 又’因風力強等理由’使得根據藉由發電機側電麗感測 器16及發電機側電流感測㈣計測之電壓、電流所計算出 之有效電力上升高於設定值之情形時，電力轉換器212會 將上升高於設定值的部分之過剩之有效電力，藉由電力轉 換益2 1 2進行直流交流轉換，並將轉換後之電力蓄電於蓄 140983.doc 201101644 電裝置211。 然後，電力調整控制部213判定發電機側電壓感測器Μ 之輸出电壓是否安定，如為安定之情形則返回至步驟 SA1 ’繼續監視發電機側電壓感測ti 16之輸出電壓之變 ， 動。若發電機側電壓感測器16之輸出電壓不安定，則返回 * 至V驟SA2，繼續進行前述放電或充電，直到發電機之輸 出變動安定為止（步驟SA3)。 0 如此，藉由電力調整控制部213監視來自發電機13所供 D之輸出電力，控制蓄電裝置211之充電及放電，進行來 自發電機13所輸出之電力之均等化。 下面’對電力系統15發生異常之情形，使用圖3進行說 明。 精由系統側電壓感測器17計測電力系統15之電壓，將計 測結果通知控制部18。在電力系統15中，H统故障造成 T力系統15之電壓滿足以其變動量與時間之組合所規定之 ❹’變動條件之情形時，藉由控制部18檢測出電力系統15之電 壓之變動(步驟SB1)。又’變動條件係指以下設定，例 相對於電力系統i 5之作為基準之電麼+2〇%之狀態持 續150毫秒以上時；比基準電麼+1G%之狀態持續3秒以上 時，或-10%之狀態持續4〇毫秒以上時等。 *田藉由控制部18檢測出電力系統15之電壓滿足變動條件 ^，控制部18控制連接切換部14，使發電機13與電力系統 15轉為非連接狀態’並使發電機13與負載20連接。藉此， 可緩和發電機13與電力系統15剛成為非連接狀態後之風車 140983.doc 201101644 轉子η之轉數之急速上昇，可防止風子 (步驟SB2)。 1疋超轉4 之二Γ制風車轉子11之轉數而於翼片側控制風車苹片 ^斜角，使發電機13之輸出逐漸降低。又，當發電機13 ::出下降至低於特定值之情形時，控制部 換部Μ之連接對象，使 奐連接切 (步驟SB3)。 電油紅由連接切換部Η接地 又，進行如前所述之控制之同時，於電㈣、統 =側電屬感測器17計測電力系統]5之電虔，將該相 身伴右^力調整控制部2U。電力調整控制部213基於自 2之設定表，決定對應於藉由系統側電屡感測 仏測出之電廢之無效電流。電力調整控制部213為向電力 糸統15供給所決定之無效電流而從蓄電 :所放電之直流電力藉由電力轉換器212進行交流^轉 換，並輸出至電力系統15(步驟SB2)。 ^後’當達到使發電機13側之風車轉子u迴轉之風速條 且電力系統1 5之電壓接近基準電壓(步驟SB4)時， 藉由控制部18控制連接切換部14，使發電機13與電力系統 15連接，使發電機13成為系統併聯狀態（步驟SB5)。 此®電力系統1 5之電壓滿足預先設定之變動條件之 情形時，使發電機13與電力系統15轉為非連接狀態，且藉 由用於調整無效電力之專用裝置（無效電力調整部2)調整無 效電力’故可將安定之無效電力向電力系㈣供給，或從 電力系統15吸收。 140983.doc -12· 201101644 根據本發明之系統安定化裝置2、方法、万 風力發電系統1，係於因系 及 m箱杰一 ，、充文障寺使件電力系統15之電 昼滿足預先§又疋之變動條件之情形時，㈣ 糸㈣藉由連接切換部14轉為非連接狀態而載= 接，而於電力系統15側，1m /、貞載20連 接料供給減電力之專用裝 置（無效電力調整部21)。 衣 =此’ S $力糸統15之電壓滿足變動條件，而將發電機 Ο Ο I電力錢15轉為非連接之情料，藉由 調整部21可將安定之盔效 <’、、’黾力 ^ ^ '.，、效電力向電力糸統15供給，或從雷 力系統15吸收。藉此，可直 ％ ^ 機之風力發電裝置，且可你 乳籠式感應發電 可使系統故障時之無效電力安定 化。 〜 ^ 與電力系統15轉為非連接 時，將發電機U與負載20(例如 "之輸出向放電電阻"L電阻)連接而使發電機 ^ 輸出，藉由放電電阻進行電力消耗。 直Γ緩和發電機13與電力系統15剛成為非連接狀態後 轉^車轉子u之轉數之急速上昇，可防止風車轉子^之超 雪：Μ系苑女疋化裝置2因具備負載2〇、f電裝置2U、及 電力轉換器212等而槿# ιλ ^ 構成，故可設置於具備既存之鼠蘢式 感應發電機之風力發電系統内，可容易地進行設置。 以上’雖對本發明者 月之只轭形態參照圖式進行了詳知說 具體性構成並不局限於該實施形態，亦包含不脫離 本表明之主旨之範圍之設計變更等。 I40983.doc 201101644 【圖式簡單說明】 圖1係表示應用本發明之一實施形態之系統安定化裝置 之風力發電系統之一例之方塊圖； 圖2係表示本發明之系統安定化裝置之通常運轉時之動 作流程之圖；及 圖3係表示本發明之系統安定化裝置之系統電壓降低之 情形之動作流程之圖。 【主要元件符號說明】 1 風力發電糸統 2 系統安定化裝置 13 發電機 14 連接切換部 15 電力系統 16 發電機側電壓感測器 17 系統側電壓感測器 18 控制部 20 負載 21 無效電力調整部 211 蓄電裝置 212 交流直流轉換器 213 電力調整控制部 140983.doc -14-More specifically, the power adjustment control unit 213 holds information that associates the voltage of the power system 15 with the reactive current, and based on the information, determines the voltage on the power system 15 side detected by the system side voltage sensor 17. The invalid current to be adjusted. Further, the power adjustment control unit 213 controls the amount of the reactive current that is supplied to the power system 15 or absorbed from the power system 15 as the voltage of the power system 15 approaches the normal reference voltage value. The power converter 212 is an AC-DC converter that converts AC and DC. For example, when the reactive current of the flow rate determined by the power adjustment control unit 213 is supplied to the power system 15, the DC power stored in the power storage device 211 is converted into AC power, and then the converted AC power is output to the power system (1). In order to absorb the reactive current from the power system 15, the power conversion switch 212 converts the AC power obtained from the power system 15 into DC power and then converts it. The power is output to the power storage device 2ΐ. When the electric motor U and the electric power system 15 are in a connected state, the electric power adjustment control unit 213 may discharge the electric power corresponding to the fluctuation from the electric storage device 2U or store electricity. The output of the generator 13 is equalized. The power supply unit 21 supplies power to the power system 15 by equalizing the output of the generator 13 to the power system 15. 140983.doc 201101644 The following is a description of the operation of the present embodiment and the power failure, etc. The operation of the wind power generation system 1 causes an abnormality in the power system. First, the normal operation is first described with reference to Fig. 2. The voltage of the generator (3) is measured by a specific measurement, and the count is output to the power-regulating control unit 213 of the power-saving power adjustment unit 21, and the power metering control unit 213 determines the basis of the measurement. The measured voltage value is determined in advance = (for example, 'relative to the reference voltage ± hop (four) to up is a change in the reference voltage (step SA1). The result 'if the generator side When the electric dust value measured by the pressure sensor 16 is changed within the range of the first electric house, the charging portion is exclusively discharged to perform charging from the electric storage device 211 or the electric storage device 2 is charged (step SA2). For example, because the wind speed condition is not reached, the wind is weak, and the like, (4) the effective power calculated from the electric U flow measured by the generator side electromigration sensor 16 and the generator side current sense (10) is lower than the set value. In the case where the power converter 212 compensates for the effective power of the portion lower than the set value, the power stored in the power storage device 211 is DC-converted by the power converter 212, and the converted power is supplied to the power system. (4) Further, when the effective electric power calculated by the voltage and current measured by the generator side electric current sensor 16 and the generator side current sensing (4) is higher than the set value due to reasons such as strong wind force The power converter 212 converts the excess effective power of the portion higher than the set value by DC conversion by the power conversion benefit 2 1 2, and stores the converted power in the storage 140983.doc 20110164 4. The electric device 211. Then, the power adjustment control unit 213 determines whether the output voltage of the generator side voltage sensor Μ is stable, and if it is stable, returns to step SA1 to continue monitoring the output of the generator side voltage sensing ti 16 If the output voltage of the generator side voltage sensor 16 is not stable, return * to V to SA2, and continue the above discharge or charging until the output of the generator changes stably (step SA3). In this way, the power adjustment control unit 213 monitors the output power from the D supplied from the power generator 13 to control the charging and discharging of the power storage device 211, and equalizes the power output from the power generator 13. The following description of the occurrence of an abnormality in the power system 15 will be described using FIG. The voltage of the power system 15 is measured by the system side voltage sensor 17, and the measurement result is notified to the control unit 18. In the power system 15, when the voltage of the T system 15 satisfies the condition of the ❹ 'variation condition defined by the combination of the variation amount and the time, the control unit 18 detects the change of the voltage of the power system 15. (Step SB1). Further, the 'variation condition' is the following setting, for example, when the state of the electric power system i 5 as the reference power is +2〇% for 150 m or more; when the state of the reference electric power is +1 G% for 3 seconds or more, or -10% of the state lasts for more than 4 milliseconds. * The field control unit 18 detects that the voltage of the power system 15 satisfies the fluctuation condition ^, and the control unit 18 controls the connection switching unit 14 to turn the generator 13 and the power system 15 into the non-connected state 'to make the generator 13 and the load 20 connection. Thereby, the wind turbine after the generator 13 and the electric power system 15 are immediately disconnected can be alleviated. 140983.doc 201101644 The number of revolutions of the rotor η is rapidly increased, and the wind can be prevented (step SB2). 1疋 The number of revolutions of the wind turbine rotor 11 is changed to 4, and the windmill is controlled on the airfoil side to make the output of the generator 13 gradually decrease. Further, when the generator 13 :: is lowered to a value lower than a specific value, the control unit changes the connection target of the unit , to connect the 奂 (step SB3). The electric oil red is grounded by the connection switching unit, and the control is performed as described above, and the electric power is measured by the electric (four), the system=side electric sensor 17 and the electric body is accompanied by the right ^ The force adjustment control unit 2U. The power adjustment control unit 213 determines the reactive current corresponding to the electrical waste measured by the system side power sensing based on the setting table of 2. The power adjustment control unit 213 supplies the determined reactive current to the power system 15 from the power storage: the discharged DC power is AC-switched by the power converter 212, and is output to the power system 15 (step SB2). ^ After 'when the wind speed bar for turning the wind turbine rotor u on the generator 13 side is reached and the voltage of the power system 15 is close to the reference voltage (step SB4), the control unit 18 controls the connection switching unit 14 to cause the generator 13 to The power system 15 is connected such that the generator 13 is in a system parallel state (step SB5). When the voltage of the power system 1 5 satisfies a predetermined fluctuation condition, the generator 13 and the power system 15 are brought into a non-connected state, and the dedicated device for adjusting the reactive power (the invalid power adjustment unit 2) By adjusting the invalid power, it is possible to supply the stabilized invalid power to the power system (4) or to the power system 15. 140983.doc -12· 201101644 The system stabilization device 2, the method, and the 10,000 wind power generation system 1 according to the present invention are based on the system and the m-box Jie Yi, and the electric power system 15 of the charging body of the temple is satisfied in advance. § In the case of a change condition, (4) 四 (4) The connection switching unit 14 is switched to the non-connected state and the load is connected, and on the power system 15 side, 1 m /, the load 20 is supplied to the dedicated device for reducing power. (Invalid power adjustment unit 21). Clothing = the voltage of this 'S $ force system 15 meets the changing conditions, and the generator Ο Ο I power money 15 is converted into a non-connected situation, and the adjustment unit 21 can be used to stabilize the helmet<', '黾力^ ^ '., the power is supplied to the power system 15 or absorbed from the lightning system 15. In this way, the wind power generation unit can be directly operated, and your milk-cage induction power generation can stabilize the invalid power in the event of system failure. ~ ^ When the power system 15 is disconnected, the generator U is connected to the load 20 (for example, the output of the " to the discharge resistor "L resistor) to cause the generator to output, and the power is consumed by the discharge resistor. Immediately after the generator 13 and the power system 15 are in a non-connected state, the number of revolutions of the rotor u is rapidly increased, and the wind turbine rotor can be prevented from being super-snow: the system is equipped with a load 2 Since the f-electric device 2U, the power converter 212, and the like are configured as ι# ιλ ^, it can be installed in a wind power generation system including an existing squirrel-type induction generator, and can be easily installed. The present invention has been described with reference to the drawings, and the specific configuration of the present invention is not limited to the embodiment, and design changes and the like without departing from the gist of the present invention are also included. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an example of a wind power generation system to which a system stabilization device according to an embodiment of the present invention is applied. FIG. 2 is a view showing a normal operation of the system stabilization device of the present invention. FIG. 3 is a diagram showing an operational flow of a system voltage reduction of the system stabilization device of the present invention. [Main component symbol description] 1 Wind power generation system 2 System stabilization device 13 Generator 14 Connection switching unit 15 Power system 16 Generator side voltage sensor 17 System side voltage sensor 18 Control unit 20 Load 21 Invalid power adjustment Portion 211 Power storage device 212 AC/DC converter 213 Power adjustment control unit 140983.doc -14-