M331839 八、新型說明： 【新型所屬之技術領域】 ’且特別是有關於一種 電路，用以控制飛輪儲 本新型是有關於一種控制電路 適用於飛輪儲能系統之轉換器控制 能系統之儲能與釋能。 【先則技術】 近年來能源危機及環境污染問題越來越受到重視 國皆致力尋找新能源及新的健能方式，目前已知的有太陽 能1力及燃料電池等能源及各式蓄電池健能方法。 太^能、風力等再生能源皆受天候影響造成輸出不穩定， 而畜電池射體積A、壽命短、造成環境污染等缺點。 、1狀，飛輪難系統是以動能的方式儲存能量，故益 π木且哥命長’為現今|賴目之儲能方式。因飛 高能量密度’在重複的充放電循環下，“儲能 I又：太大影響。因此使用年限長，對周遭 響，且體積相較於同功率之化學電池小。 軚'、、、办 飛=是利用高速旋轉之飛輪來館能，係 :至-W即慣性矩!)很大之飛輪，使其轉動進 处 :式儲f能量。加上近年來電力電子技術之發展，推動= ""輪生’而使得飛輪儲能系統成為研究焦點。 r能系統吸收市電電源所提供的電力進 ，，以及適時地在電源斷電時，即時地且可靠地2 負载電力，轉換器控制電路便是一個不可或缺的;:供應 M331839 【新型内容】 41的目的疋在提供—種飛輪餘能线之轉換器 玉電路肖以控制飛輪儲能裝置進行儲能與釋能。 ，依照本新型一較佳實施例，提出-種適用於飛輪儲能 2之轉換器㈣電路，其係可選擇性地切換飛輪儲能裝 電性連接至電源與負載。飛輪儲能系統包含飛輪儲能裝 置以及轉換器之控制電路’並電性連接至一電源以及一負 載之間。當電源可正常供電時，飛輪龍裝置則工作於儲 能模式’接收電源提供的電力能量；當電源無法正常供電 時，飛輪儲能裝置則工作於釋能模式，供電給負載。 轉換器之控制電路係電連接飛輪儲能裝置、電源以及 2載，並包含一第一整流/變頻裝置、—升降壓轉換裝置、 -第二整流/變頻裝置、一第一開關裝置、—第二開關裝 、弟—開關裝置、—第四開關裳置、-第五開關裝置 以及—開關控制裝置。開關控制裝置偵測電源是否供電， 進而控制每一開關裝置動作，使飛輪儲能裝置工作於儲能 模式或釋能模式。 b 其中整流/變頻裝置，分別包含一整流/變頻器與一開 關觸發訊號裝置，開關觸發訊號裝置產生開關觸發訊號給 整流/變頻器，使整流/變頻器工作於變頻模式時，作變 切換。 、 曰第―開關裝置串接於電源與負载之間，用以切換電源 是否對飛輪儲能裝置及負載供電。第二開關裝置與第四開 M331839 ==X控制第一整流/變頻裝置與第二整流/變頻 衣置之料式，使其視飛輪儲能系統之 二=莫:她_式1三開關裝置丄= 李统之心整流/變頻裝置之間，用以改變飛輪儲能 餘能與釋能料擇飛輪儲能裝置之 【實施方式】 請參照第i圖’其綠示為一種飛輪儲能系統之系統架 。飛輪儲能系，统10包含一轉換器控制電路_以及 一飛輪儲能裝置2GG ’並電性連接於—電源綱以及—負 ^ 205轉換讀制電路_係電性連接於飛輪難裝置 。，、中飛輪儲能裝置200包含一原 輪單元202。 ^ -田電源2〇4 JL常供電時，儲能路徑如圖中虛線2〇3所 ^電源204同時供電給負載2〇5，並經由轉換器控制電 * 〇〇驅動飛輪儲能農置200中之原動機2〇1使其到達所 轉速/進而轉動飛輪單元2()2進行儲能。飛輪單元 古、在儲％時係、由原動機2Q1驅動飛輪單元观運轉於 么下X儲存此里於飛輪單元202，其儲存之能量表示 式為： M331839 Ε^-Ιω2 , 2 (1) 其中，I為飛輪之慣量，ω為飛輪轉速。 當電源204供電停止時，釋能路徑如圖中實線2〇6所 不，此時因電源204無法供電給負載2〇5，則由飛輪儲能 裝置200中之飛輪單元2〇2開始釋能進行放電（在本實施 例中，飛輪單元202為一同步機，因此當釋能時，此同步 機作為一同步發電機），以取代電源2〇4供應負載2〇5電 力。 請參照第2圖，其繪示為依照本新型一較佳實施例之 一種飛輪儲能系統轉換器控制電路的示意圖。在此為了簡 化說明，對於飛輪儲能系統丨〇不再贅述（請參見第1圖及 其說明如上所述）。在此僅針對轉換器之控制電路1⑻與轉 換器之控制電路100在控制飛輪儲能裝置2〇〇作儲能與釋 能時的情形加以說明。 ^轉換器之控制電路10〇包含一第一開關裝置110、一 第二開關裝置12〇、一第三開關裝置130、一第四開關裝 置14〇、一第五開關裝置150、一開關控制裝置16〇、一第 一整流/變頻裝置170、-升降壓轉換裝4 180卩及一第二 整流/變頻裝置190。 其中’第一開關裝置11〇串接於電源2〇4與負載2〇5 之間，用以將電源204切離或併入飛輪儲能系統1〇與負 載205。第二開關裝置12〇與第四開關裝置“οM331839 VIII. New description: [New technical field] 'and especially related to a circuit for controlling flywheel storage. The new type is related to a control circuit for the energy storage of the converter control energy system of the flywheel energy storage system. And release energy. [First Technology] In recent years, energy crises and environmental pollution have become more and more important. Countries are striving to find new energy sources and new energy-enhancing methods. Currently, there are solar energy sources such as solar energy and fuel cells, and various battery energy. method. Renewable energy sources such as solar energy and wind power are affected by weather, causing unstable output, while livestock batteries have shortcomings such as volume A, short life, and environmental pollution. , 1 shape, the flywheel is difficult to store energy in the form of kinetic energy, so the benefits of π wood and brother long ‘ is now the energy storage method. Due to the high energy density of fly 'in repeated charge and discharge cycles, 'the energy storage I is too large. Therefore, the service life is long, the sound is loud, and the volume is smaller than the chemical battery of the same power. 軚',,, Flying = using the high-speed rotating flywheel to the museum, the system: to -W is the moment of inertia!) The large flywheel, making it turn into the place: the storage of energy f. In addition to the development of power electronics technology in recent years, promote = """[Rotating] makes the flywheel energy storage system the focus of research. r The system can absorb the power supplied by the mains supply, and timely and reliably load the power when the power is cut off. The control circuit is indispensable; supply M331839 [new content] The purpose of 41 is to provide a flywheel energy line converter jade circuit to control the flywheel energy storage device for energy storage and release. According to a preferred embodiment of the present invention, a converter (four) circuit suitable for flywheel energy storage 2 is provided, which is capable of selectively switching a flywheel energy storage connection to a power source and a load. The flywheel energy storage system includes a flywheel storage system. Energy device The control circuit of the converter is electrically connected to a power source and a load. When the power supply can be normally powered, the flywheel device operates in the energy storage mode to receive the power energy provided by the power source; when the power source cannot be powered normally, The flywheel energy storage device operates in the release mode and supplies power to the load. The control circuit of the converter is electrically connected to the flywheel energy storage device, the power supply and the two loads, and includes a first rectification/frequency conversion device, a buck-boost conversion device, a second rectifying/inverter device, a first switching device, a second switch device, a di-switch device, a fourth switch device, a fifth switch device, and a switch control device. The switch control device detects whether the power supply is powered And controlling the operation of each switch device to operate the flywheel energy storage device in the energy storage mode or the release mode. b wherein the rectifier/inverter device includes a rectifier/inverter and a switch trigger signal device, and the switch trigger signal device is generated. The switch trigger signal is sent to the rectifier/inverter to make the rectifier/inverter work in the inverter mode, and change the switch. Between the power source and the load, it is used to switch whether the power supply supplies power to the flywheel energy storage device and the load. The second switch device and the fourth switch M331839 ==X control the first rectification/frequency conversion device and the second rectification/frequency conversion clothing The material type makes it look like the second part of the flywheel energy storage system = Mo: she _ type 1 three switch device 丄 = Li Tongzhi rectification / frequency conversion device, used to change the energy storage capacity of the flywheel and the energy storage material [Embodiment] Please refer to the i-th diagram, which shows the system frame of a flywheel energy storage system. The flywheel energy storage system 10 includes a converter control circuit _ and a flywheel energy storage device 2GG' The connection between the power supply unit and the - negative 205 conversion read circuit _ is electrically connected to the flywheel rig device. The medium flywheel energy storage device 200 includes a primary wheel unit 202. ^ -Tian Power 2〇4 JL When power is normally supplied, the energy storage path is as shown by the dotted line 2〇3 ^ Power supply 204 is simultaneously supplied to the load 2〇5, and the motor is controlled by the converter* 〇〇 Drives the flywheel energy storage farm 200 The prime mover 2〇1 makes it reach the speed/and thus rotates the flywheel unit 2()2 for energy storage. The flywheel unit is ancient, at the time of storage, and the flywheel unit is driven by the prime mover 2Q1 to operate in the lower X storage. The energy stored in the flywheel unit 202 is expressed as: M331839 Ε^-Ιω2 , 2 (1) I is the inertia of the flywheel, and ω is the flywheel speed. When the power supply 204 is stopped, the energy release path is as shown in the solid line 2〇6. At this time, since the power supply 204 cannot supply power to the load 2〇5, the flywheel unit 2〇2 in the flywheel energy storage device 200 starts to release. The discharge can be performed (in the present embodiment, the flywheel unit 202 is a synchronous machine, so when the energy is released, the synchronous machine acts as a synchronous generator) to supply the load 2〇5 power instead of the power supply 2〇4. Please refer to FIG. 2, which is a schematic diagram of a flywheel energy storage system converter control circuit according to a preferred embodiment of the present invention. For the sake of brevity, the flywheel energy storage system will not be described again (see Figure 1 and its description above). Here, only the case where the control circuit 1 (8) of the converter and the control circuit 100 of the converter control the flywheel energy storage device 2 for energy storage and release will be described. The converter control circuit 10 includes a first switching device 110, a second switching device 12A, a third switching device 130, a fourth switching device 14A, a fifth switching device 150, and a switching control device. 16〇, a first rectifying/inverting device 170, a buck-boost conversion device 4180卩, and a second rectifying/inverting device 190. The first switching device 11 is connected in series between the power source 2〇4 and the load 2〇5 for cutting off or incorporating the power source 204 into the flywheel energy storage system 1〇 and the load 205. The second switching device 12〇 and the fourth switching device “ο
批岳丨丨铱 ± m M 2】第—整流/變頻裝置17〇與第二整流/變頻裝置19〇之 乍模式，使其根據飛輪儲能系統10之工作模式（儲能 M331839 或釋能）而工作於整流模式或變頻器模式。 第三開關裝置130串接於升降壓轉換裝置18〇 =/變頻裝置190之間，用以改變飛輪儲能线之儲 U能的路徑。當飛輪儲能系、统10作儲能時，第二門 關裝置13G將升降㈣換裝置⑽旁路（bypass)掉^ 得第-整流/變頻裝置17G與第二整流/變頻裝置19〇直接 連接’而不需經由升降壓轉換裝m當飛輪儲能系统 1〇作釋能時，第三開關裝置130控制第二整流/變頻穿置 190經由升_換裝置18〇與第一整流/變頻裝置連 接，讓升Μ轉換裝置18G進行升降控制，以提供 定之輸出電壓。 〜 第五開關裝i 150串接於第二整流/變頻裝置19〇與飛 輪儲能裝i 200之間，用以選擇飛輪儲能裝£2〇〇之儲能 與釋能的路徑，可避免飛輪單元2〇2於釋能時，其電力再 回充至原動機201。 開關控制裝置160用以偵測電源2〇4是否可供電，進 而控制每-開關裝置m〜15G動作，完成飛輪儲能系統1〇 之儲能與釋能的工作。 當電源204正常供電時，經由第一整流/變頻裝置17〇 作整流，再經過第二整流/變頻裝置19〇作變頻控制，用以 驅動飛輪儲能裝置200中之原動機2〇1到達所需之轉速 N ’進而帶動飛輪單元202進行儲能。 在本實施例中，原動機201採用感應馬達（Inducti〇n Motor )。因此，其馬達轉速之關係式如式（2 )所述： M331839Batch Yuelu ± m M 2] first-rectifier/inverter 17〇 and second rectification/inverter 19〇 mode, according to the working mode of the flywheel energy storage system 10 (storage energy M331839 or release energy) It works in rectification mode or inverter mode. The third switching device 130 is connected in series between the buck-boost conversion device 18 〇 = / the frequency conversion device 190 to change the path of the U energy storage of the flywheel energy storage line. When the flywheel energy storage system and the system 10 are used for energy storage, the second door closing device 13G bypasses the lifting (four) changing device (10) by the first rectifying/inverting device 17G and the second rectifying/inverting device 19 directly. The connection is not required to be released by the buck-boost energy storage system. When the flywheel energy storage system 1 is released, the third switching device 130 controls the second rectification/frequency conversion device 190 via the lapping device 18 and the first rectification/frequency conversion. The device is connected to allow the lift converter 18G to perform a lift control to provide a constant output voltage. ~ The fifth switch is installed in series between the second rectifying/inverting device 19〇 and the flywheel energy storage device i200 to select the path of energy storage and energy release of the flywheel energy storage device. When the flywheel unit 2〇2 is released, its power is recharged to the prime mover 201. The switch control device 160 is configured to detect whether the power source 2〇4 can be powered, and then control the operation of each of the switch devices m~15G to complete the energy storage and release of the flywheel energy storage system. When the power supply 204 is normally powered, it is rectified by the first rectifying/inverting device 17, and then subjected to variable frequency control by the second rectifying/inverting device 19 for driving the prime mover 2〇1 in the flywheel energy storage device 200 to reach the required The rotational speed N' in turn drives the flywheel unit 202 to store energy. In the present embodiment, the prime mover 201 employs an induction motor (Inducti〇n Motor). Therefore, the relationship between the motor speed is as expressed in equation (2): M331839
‘V 一 120/M P (2) 其中’ N為感應馬達之轉子轉速，p為感應馬達之極數，^ 為電源頻率，S為轉差率。在本實施例中，則是藉由第二 整流/變頻裝置190之變頻控制，控制式（2)中之f，使得 原動機201達到所需的轉速。 于 當電源204供電停止時，^輪儲能裝£雇經由第二 整流/變頻裝置190將所釋出之交流電作整流，#經由升; 壓轉換裝置180將整流後之電壓控制成定值輸出給第一整 流/變頻裝置170,經由第一整流/變頻裝置⑺作變頻控 制，將其轉換成負載205所需電壓之振幅及頻率的交流 電，以取代電源204供應負載205電力。在本實施例中， 負載2G5所需之交流電源的電壓值為彻v，而頻率為 60Hz。 ' ’、 請參照第3圖，其乃依照第2圖中之飛輪儲能系統之 轉換器控制電路所繪示的模擬電路圖。在本實施例中，採 用PSIM電力電子模擬軟體進行模擬。圖中每—開關元件 上之三角形符號為此模擬軟體中，小訊號控制大訊號開關 時之隔離表示法。電源204為三相6〇Hz、48〇v之交流電 源，而負載205為三相平衡γ接R_L負載，各相負载包含 一電阻（R=1.25Q )與一電感（ι^2·65ηιίΙ)之串聯。 第一開關裝置110包含複數個開關元件，每一開關元 件刀別串接於對應電源204之每一線上。在本實施例中， 當第一開關裝f 110截止（0FF)時，用以模擬電源2〇4 無法正常供電之情況。一般來說，也可視為在系統定期維 M331839 護測試時，將電源204切離系 此、，此& 先’讓飛輪儲能裝置200雜 能以對負载205供電。在本實 置200釋 三個。 ，中，開關讀之數量為 第二開關裝置120與第四閲關⑭ …… 開關裝置140分別包含-第 一開關早幻21，⑷以及—第二開關單元 弟 整流/變頻裝置m與第二整流/變頻裝置19〇工作模= 選擇，係藉由分別切換第二開„置120 關$ 14"之第-開關單元⑵，141以及第二 關= 142來完成。 第二：關裝置:2〇的第一開關單丨121與第四開關裝 140的第二開關單元142受控於開關控制裝置_之同 -觸發訊號而同時導通或截止；第二開關裝置12〇的第二 開關單元122與第四開關裝置14〇的第一開關單元⑷受 控於開關控制裝置160之同一觸發訊號而同時導通或截 止。 因此第一開關裝置120的第一開關單元2 21與第二 開關皁το 122為互補式動作；第四開關裝置14〇的第一開 關單元141與第二開關單元142為互補式動作。 請參照第4圖，其繪示依照第3圖中之整流/變頻裝置 之進一步放大的模擬電路圖。每一整流/變頻裝置丨7〇, i9〇 分別包含一整流/變頻器171，191以及開關觸發訊號裝置 172, 192。每一整流/變頻器171，191包含複數的開關元件 (Si〜sj，在本實施例中，整流/變頻器171，191中之開關 元件為絕緣閘極雙接面電晶體（IGBT )。其中開關觸發訊 11 M331839 號裝置172，192分別包含一三相正弦參考信號源21〇, 410、一三角載波信號源220, 420以及一比較器23〇, 43〇。‘V a 120/M P (2) where 'N is the rotor speed of the induction motor, p is the number of poles of the induction motor, ^ is the power frequency, and S is the slip. In the present embodiment, f is controlled by the second rectifying/inverting device 190, and f in the formula (2) is controlled so that the prime mover 201 reaches the required rotational speed. When the power supply 204 is stopped, the stored energy is rectified by the second rectifying/inverting device 190, and the voltage is controlled to a constant value by the voltage converting device 180. The first rectifying/inverting device 170 is subjected to variable frequency control via the first rectifying/inverting device (7), and converted into an alternating current of the amplitude and frequency of the voltage required by the load 205 to supply the load 205 power instead of the power source 204. In this embodiment, the voltage value of the AC power source required for the load 2G5 is completely v, and the frequency is 60 Hz. '', please refer to Fig. 3, which is an analog circuit diagram shown in the converter control circuit of the flywheel energy storage system in Fig. 2. In this embodiment, the simulation is performed using the PSIM power electronics simulation software. The triangle symbol on each switch element in the figure is the isolated representation of the small signal in the analog software. The power supply 204 is a three-phase 6 〇 Hz, 48 〇 ν AC power supply, and the load 205 is a three-phase balanced γ connected R_L load, and each phase load includes a resistor (R=1.25Q) and an inductor (ι^2·65ηιίΙ). The series. The first switching device 110 includes a plurality of switching elements, each of which is connected in series to each of the corresponding power sources 204. In this embodiment, when the first switch device f 110 is turned off (0FF), it is used to simulate that the power source 2〇4 cannot be normally powered. In general, it can also be considered that when the system periodically maintains the M331839 protection test, the power supply 204 is cut off, and this & first allows the flywheel energy storage device 200 to supply power to the load 205. In this implementation, 200 is released. In the middle, the number of switch reads is the second switching device 120 and the fourth switching device 14... The switching device 140 includes - the first switch early illusion 21, (4) and - the second switch unit rectifier / frequency conversion device m and the second The rectification/inverter device 19 〇 working mode = selection is completed by switching the second switching unit (2), 141 and the second switching unit 142, respectively. Second: closing device: 2 The first switch unit 121 of the second switch unit and the second switch unit 142 of the fourth switch unit 140 are controlled to be simultaneously turned on or off by the same control signal of the switch control device _; the second switch unit 122 of the second switch device 12 〇 The first switching unit (4) of the fourth switching device 14 is controlled to be turned on or off simultaneously by the same trigger signal of the switching control device 160. Therefore, the first switching unit 21 and the second switching soap το 122 of the first switching device 120 The complementary operation is performed; the first switching unit 141 and the second switching unit 142 of the fourth switching device 14 are complementary. Referring to FIG. 4, the rectifying/inverting device according to FIG. 3 is further enlarged. Analog circuit diagram. Each rectifying/inverting device 丨7〇, i9〇 includes a rectifying/inverting converter 171, 191 and a switch triggering signal device 172, 192. Each rectifying/inverting converter 171, 191 includes a plurality of switching elements (Si~sj, In this embodiment, the switching elements in the rectifying/inverting converters 171, 191 are insulated gate double junction transistors (IGBTs), wherein the switch triggering signal 11 M331839 devices 172, 192 respectively comprise a three-phase sinusoidal reference signal source 21〇, 410, a triangular carrier signal source 220, 420 and a comparator 23〇, 43〇.
當整流/變頻器171，191工作在變頻器模式時，係利用 三相正弦參考信號源210，410與三角載波信號源220, 420 ’透過比較器230，430之比較結果進行正弦脈寬調變 (SPWM)控制整流/變頻器171，191中之開關元件（Si〜S6) 之導通與否，以產生所需頻率的訊號。當比較器23〇, 43〇 之輸出為高電位（High)時，絕緣閘極雙接面電晶體觸發； 當比較器230, 430之輸出為低電位（L〇w)日寺，絕緣問極 雙接面電晶體不觸發。 第二開關裝置120與第四開關裝置14〇分別電性連接 於整流/變頻器171，191與開關觸發訊號裝置172, 192之 間’用以切換整流/變頻裝£ 17G，刚之工作模以整流或 變頻之選擇）。 其:，第二開關裝置12〇與第四開關裝置140中之每 —1關單7G 121，122, 141，142分別包含複數個開關元件， 母開關疋件分別對應連接於每一整流/變頻器171 191 開關7L件數量與每一答、、ώ ^ 量相同垂 仙·’交頻态171，191之開關元件數 只施例中數量為六個。每-開關單元121，122, ，i42中之開關元件為同時導通或截止。 置之進1::5圖：其繪示依照第3圖中之升降壓轉換裝 入雷段山V A的杈擬電路圖。升降壓轉換裝置180之輸 ^(1)1和b2,)與第二整流/變頻裝置190電性連接! 12 M331839 輸出電壓端（1^和bd與第一整流/變頻裝置17〇電性連 接。升降壓轉換裝置180包含一回授電壓比較器31〇、一 升壓控制裝置320、一降壓控制裝置330、一升壓控制開 關340以及一降壓控制開關350。 其中回授電壓比較器3 10包含一電壓檢測器3丨丨以及 一電壓比較器312。電壓檢測器311擷取升降壓轉換裝置 180之輸出電壓作為一回授電壓，此回授電壓與一設定電 壓313經過電壓比較器3 12後，輸出觸發訊號控制升壓控 制開關340與降壓控制開關350之動作。 當回授電壓大於設定電壓313 ( 800V)時，則電壓比 較器312輸出為低電位（Low )，使升壓控制開關340與降 壓控制開關350截止（OFF )，此時升降壓轉換裝置ig〇工 作於降壓模式（Buck Mode )，其輸出電壓之定壓控制係藉 由降壓控制裝置330控制送至開關元件（IGBT_a)之觸發 訊號的責任週期（Duty Cycle)，以控制升降壓棒換裝置18〇 之輸出電壓維持在設定電壓313( 8〇〇v)。且此時因升壓控 制開關340截止（OFF)，所以升壓控制裝置320無作用。 反之，當回授電壓小於設定電壓313 ( 800V)時，則 電左比較器312輸出為南電位（High )，使升壓控制開關 340與降壓控制開關350導通（ON )，所以降壓控制裝置 330無作用，而升降壓轉換裝置18〇輸出電壓之定壓控制 係藉由升壓控制裝置32〇控制送至開關元件（IG]BT-b )之 觸發訊號的責任週期（Duty Cycle )，以控制升降壓轉換裝 置180之輸出電壓維持在設定電壓313( 800 V)。此時升降 13 M331839 壓轉換裝置180工作於升壓模式（B00st Mode)。 請參照第6圖，其繪示為第5圖中的升降壓轉換裝置 之輸入電壓與輸出電壓之波形圖。由上述升降壓轉換裝置 180之工作原理得知，當在電源204無法供電（停電）時， 由飛輪儲能裝置200釋放能量供電過程中，其釋出之電壓 準位，也就是升降壓轉換裝置180之輸入電壓51〇隨時= 在下降，但仍可透過升降壓轉換裝置18〇,使其直流鏈輸 出電壓520維持在預設的設定電壓313 ( 8〇〇v)。 請參照第3圖，第三開關裝置13〇包含一第一開關 以及:第二開關132，兩者為互補式動作，用以控制飛輪 儲能系統10儲能或釋能時是否經過升降壓轉換裝置180。 在本實施例中，飛輪储能裝置之原動機加以感 應馬達來進行模擬，飛輪單元202以同步發電機來進行模 擬。第五開關裝置150包含一第一開關單元151以及一第 二開關單元152。當飛輪健能裝置扇處於儲能模式時， 第-開關單元⑸導通（0N)且第二開關單元152截止 飛輪儲能裝置200處於释能模式時，第1關 早元151截止（off )且望- μ - )且弟一開關早兀152導通（⑽）， 如此可避免飛輪儲能裝置綱於釋能過程中輸出 :應馬達。因此’第一開關單元151與第二開關 早心2為互補式動作。在本實施例中， 以及第二開關單…別包含三個開關元件， 几件分別串接於所對應的電源線上。 汗員 開關控制裝置16〇包含一電屋 …匕“ 161，係作為偵 14 M331839 測電源204是否可正常供電，用以控制每一開關裝置 110〜150之啟閉，以模擬飛輪儲能系統1〇為儲能模式（電 源204供電）或釋能模式（電源2〇4斷電）。在本實施例 中，每一開關裝置11 〇〜15〇之啟閉可整理歸納如表}所示。 __一開關裝置之啟When the rectifier/inverter 171, 191 is operating in the inverter mode, the sinusoidal pulse width modulation is performed by comparing the results of the comparison of the three-phase sinusoidal reference signal source 210, 410 with the triangular carrier signal source 220, 420' through the comparators 230, 430. (SPWM) controls whether the switching elements (Si to S6) in the rectifier/inverter 171, 191 are turned on or off to generate a signal of a desired frequency. When the output of the comparator 23〇, 43〇 is high (High), the insulated gate double junction transistor is triggered; when the output of the comparator 230, 430 is low (L〇w), the insulation pole The double junction transistor does not trigger. The second switching device 120 and the fourth switching device 14 are electrically connected between the rectifier/inverter 171, 191 and the switch triggering signal device 172, 192 respectively to switch the rectification/frequency conversion device to 17 GG, and the working mode is just Rectification or frequency conversion options). It is: each of the second switching device 12A and the fourth switching device 140, 7G 121, 122, 141, 142 respectively comprise a plurality of switching elements, and the female switching elements are respectively connected to each rectifying/converting 171 191 The number of switches 7L is the same as the number of each answer, ώ ^ 垂 · ' ' 交 交 171 191, 191 number of switching elements only six in the example. The switching elements in each of the switching units 121, 122, and i42 are simultaneously turned on or off. Into the 1::5 picture: it shows the analog circuit diagram of the loading section of the thunder section V A according to the buck-boost conversion in Fig. 3. The power supply (1)1 and b2, of the buck-boost conversion device 180 are electrically connected to the second rectifying/inverting device 190! 12 M331839 The output voltage terminal (1^ and bd are electrically connected to the first rectifying/inverting device 17) The buck-boost conversion device 180 includes a feedback voltage comparator 31, a boost control device 320, a buck control device 330, a boost control switch 340, and a buck control switch 350. The feedback voltage comparator 3 10 includes a voltage detector 3A and a voltage comparator 312. The voltage detector 311 captures the output voltage of the buck-boost conversion device 180 as a feedback voltage, and the feedback voltage and a set voltage 313 pass through the voltage comparator. After 3 12, the output trigger signal controls the action of the boost control switch 340 and the buck control switch 350. When the feedback voltage is greater than the set voltage 313 (800V), the voltage comparator 312 outputs a low potential (Low), causing the rise. The pressure control switch 340 and the step-down control switch 350 are turned off (OFF). At this time, the step-up and step-down switching device ig 〇 operates in a buck mode, and the constant voltage control of the output voltage is controlled by the step-down control device 330. To switch The duty cycle of the trigger signal of the device (IGBT_a) is controlled to maintain the output voltage of the step-up and step-down device 18〇 at the set voltage 313 (8〇〇v), and at this time, the boost control switch 340 is turned off ( OFF), so the boost control device 320 has no effect. Conversely, when the feedback voltage is less than the set voltage 313 (800V), the left output comparator 312 outputs a south potential (High), causing the boost control switch 340 and the buck. The control switch 350 is turned on (ON), so the step-down control device 330 has no effect, and the constant voltage control of the buck-boost conversion device 18 〇 output voltage is controlled by the boost control device 32 送 to the switching element (IG) BT-b The duty cycle of the trigger signal (Duty Cycle) is controlled to maintain the output voltage of the buck-boost converter 180 at the set voltage 313 (800 V). At this time, the 13 M331839 pressure conversion device 180 operates in the boost mode (B00st Mode). Please refer to FIG. 6 , which is a waveform diagram of input voltage and output voltage of the buck-boost conversion device in FIG. 5. It is known from the working principle of the buck-boost conversion device 180 that when the power supply 204 cannot supply power ( stop When the flywheel energy storage device 200 releases the energy supply process, the released voltage level, that is, the input voltage 51 of the buck-boost conversion device 180, is at any time = falling, but still can pass through the buck-boost conversion device 18 The DC link output voltage 520 is maintained at a preset set voltage 313 (8〇〇v). Referring to FIG. 3, the third switching device 13A includes a first switch and a second switch 132, both of which are The complementary action is used to control whether the flywheel energy storage system 10 passes through the buck-boost conversion device 180 when it stores or releases energy. In the present embodiment, the prime mover of the flywheel energy storage device is simulated by the induction motor, and the flywheel unit 202 is simulated by the synchronous generator. The fifth switching device 150 includes a first switching unit 151 and a second switching unit 152. When the flywheel energy device fan is in the energy storage mode, when the first switch unit (5) is turned on (0N) and the second switch unit 152 is off the flywheel energy storage device 200 in the release mode, the first switch early element 151 is turned off (off) and Hope - μ - ) and the younger one switch is earlier than 152 ((10)), so that the output of the flywheel energy storage device can be avoided during the release process: the motor should be used. Therefore, the first switching unit 151 and the second switch are in a complementary action. In this embodiment, and the second switch unit ... includes three switching elements, and several pieces are respectively connected in series to the corresponding power lines. The sweat switch control device 16A includes an electric house ... 匕 "161, whether the test power supply 204 can be normally powered as a detection 14 M331839, for controlling the opening and closing of each switch device 110~150 to simulate the flywheel energy storage system 1 〇 is the energy storage mode (power supply 204 power supply) or release mode (power supply 2 〇 4 power off). In this embodiment, each of the switching devices 11 〇 15 15 启 can be organized and summarized as shown in the table. __A switch device
請參照第7圖和第8圖，其繚示分別為飛輪儲能系統 儲能與釋能過程之轉速變化波形圖與能量變化波形圖。由 圖中可看出飛輪裝置在5秒時，其轉速6〇〇達到59〇〇r卿 在此期間内飛輪裝置儲存動能，其所儲存之能4 為 3741仟焦耳（kJ)。當時間在3〇秒時，電源系統斷電，此時 飛輪慣量帶動馬達使其變成發電機，故能量逐漸釋出，約 經10秒後轉速下降至0啊，釋出之能量也下降至〇隹耳。 請參照第9圖和第1G圖，其㈣分別為電源正常供 電時與飛輪儲能系統供電時（電源停電）之負載端電壓波 形圖。由第9圖中可觀得當電源正常供電時， 商用電源供電’故其正常電源供電時之負載電壓波形_ 15 M331839 為弦波由第1 〇圖中可觀得♦雷湃齡f ^ -整流/變《置#電，=；^，負載改由第 ，、電其如負载電壓波形900所示。 雖然本新型已以一較者命 以限定本新型，任何孰二：二％ 然其並非用 7，、、'1此技藝者，在不脫離本新型之精 神和祀圍内’當可作各種之更動與潤飾，因此 護範圍當視後附之中請專利範圍所界定者為準。 【圖式簡單說明】 為讓本新型之上述和其他目的、特徵、優點與實施例 能更明顯m所關式之詳細說明如下： 第1圖係繪示為一種飛輪儲能系統之系統架構圖。 /第2圖料示依照本新型—較佳實施例之—種飛輪儲 能系統的轉換器控制電路示意圖。Please refer to Fig. 7 and Fig. 8 for the waveform diagram of the change of the speed and the waveform of the energy change of the energy storage and release process of the flywheel energy storage system. It can be seen from the figure that the flywheel device reaches the speed of 6 〇〇 at 5 seconds. During this period, the flywheel device stores kinetic energy, and its stored energy 4 is 3741 仟 joules (kJ). When the time is 3 seconds, the power system is powered off. At this time, the flywheel inertia drives the motor to become a generator, so the energy is gradually released. After about 10 seconds, the speed drops to 0, and the released energy also drops to 〇. Ears. Please refer to Figure 9 and Figure 1G. (4) The load voltage waveform diagram of the power supply when the power supply is normally supplied and when the flywheel energy storage system is powered (power supply blackout). It can be seen from Fig. 9 that when the power supply is normally supplied, the commercial power supply is supplied. Therefore, the load voltage waveform of the normal power supply is _ 15 M331839. The sine wave is visible from the first figure. ♦ Thunder age f ^ - Rectification / change "Set #电, =; ^, the load is changed to the first, and the electric is as shown in the load voltage waveform 900. Although this new type has been defined by a more serious life, any 孰 2: 2% does not use 7,, '1 this artist, without departing from the spirit and scope of this new type The change and retouching, therefore, the scope of protection is subject to the scope defined by the patent scope. BRIEF DESCRIPTION OF THE DRAWINGS In order to make the above and other objects, features, advantages and embodiments of the present invention more obvious, the detailed description is as follows: FIG. 1 is a system architecture diagram of a flywheel energy storage system. . / Figure 2 is a schematic diagram of a converter control circuit for a flywheel energy storage system in accordance with the present invention, which is a preferred embodiment.
第3圖係繪示依照第2圖中之飛輪儲能系統的轉換器 控制電路模擬電路圖。 'W 第4圖係繪示依照第3圖中之整流/變頻裝置進一步放 大的模擬電路圖。 第5圖係繪示依照第3圖中之升降壓轉換裝置進一步 放大的模擬電路圖。 第6圖係繪示依照第4圖中之升降壓轉換裝置輸入電 壓與輸出電壓的波形圖。 第7圖係繪示為飛輪儲能系統儲能與釋能過程之轉速 變化的模擬波形圖。 第8圖係繪示為飛輪儲能系統儲能與釋能過程之能量 16 M331839 變化的模擬波形圖。 第 波形圖 圖係繪示為電源正常供電時之 負栽端電壓的模擬 第ίο圖係繪示為飛輪儲能系統供 之負載端電壓的模擬波形圖。 電時（電源停電 ) 【主要元件符號說明】 10 :飛輪儲能系統 110〜150 :開關裝置 122 :第二開關單元 132 :第二開關 142 :第二開關單元 152 :第二開關單元 161 :電壓比較器 171 :整流/變頻器 180:升降壓轉換裝置 191 :整流/變頻器 200 :飛輪儲能裝置 202 :飛輪單元 204 :電源 2〇6 :實線（釋能路徑） 220 ··三角載波信號源 310 :回授電壓比較器 3 12 :電壓比較器 100 :轉換器控制電路 121 :第一開關單元 13 1 :第一開關 14i :第一開關單元 15 1 :第一開關單元 16 0 ·開關控制裝置 170 ·第一整流/變頻裝置 172 :開關觸發訊號裝置 19 0 ·弟一整流/變頻裝置 19 2 ·開關觸發訊號裳置 201 :原動機 203 ·虛線（儲能路經） 205 :負載 21〇:三相正弦參考信號源 230 :比較器 3 11 :電壓檢測器 313 :設定電壓 17 M331839 320 :升壓控制裝置 340 :升壓控制開關 410 :三相正弦參考信號源 430 :比較器 520 :輸出電壓 700 :能量 900 :正常電源停電時負載 壓波形 330 :降壓控制裝置 350 :降壓控制開關 420 :三角載波信號源 510 :輸入電壓 600 :轉速 800:正常電源供電時負載電 壓波形Fig. 3 is a circuit diagram showing the converter control circuit of the flywheel energy storage system according to Fig. 2. 'W Fig. 4 shows an analog circuit diagram further enlarged in accordance with the rectifying/inverting device of Fig. 3. Fig. 5 is a schematic diagram showing an analog circuit which is further enlarged in accordance with the step-up and step-down converter of Fig. 3. Fig. 6 is a waveform diagram showing input voltage and output voltage of the buck-boost converter according to Fig. 4. Figure 7 is a simulated waveform diagram showing the change in the rotational speed of the energy storage and release process of the flywheel energy storage system. Figure 8 is a simulated waveform diagram showing the variation of energy 16 M331839 for the energy storage and release process of the flywheel energy storage system. The first waveform diagram shows the simulation of the voltage at the load terminal when the power supply is normally supplied. The figure is an analog waveform diagram of the load terminal voltage supplied by the flywheel energy storage system. Electric time (power failure) [Main component symbol description] 10: Flywheel energy storage system 110~150: Switching device 122: Second switching unit 132: Second switch 142: Second switching unit 152: Second switching unit 161: Voltage Comparator 171: rectification/inverter 180: buck-boost conversion device 191: rectification/inverter 200: flywheel energy storage device 202: flywheel unit 204: power supply 2〇6: solid line (release path) 220 ··triangular carrier signal Source 310: feedback voltage comparator 3 12 : voltage comparator 100 : converter control circuit 121 : first switching unit 13 1 : first switch 14i : first switching unit 15 1 : first switching unit 16 0 · switching control Device 170 · First rectification/inverter device 172 : Switch trigger signal device 19 0 · Dior - rectification / frequency conversion device 19 2 · Switch trigger signal skirt 201 : prime mover 203 · Dotted line (storage path) 205 : Load 21〇: Three-phase sinusoidal reference signal source 230: Comparator 3 11 : Voltage detector 313 : Set voltage 17 M331839 320 : Boost control device 340 : Boost control switch 410 : Three-phase sinusoidal reference signal source 430 : Comparator 520 : Output voltage 700: Can Volume 900: Load voltage waveform during normal power failure 330 : Buck control device 350 : Step-down control switch 420 : Triangle carrier signal source 510 : Input voltage 600 : Speed 800 : Load voltage waveform during normal power supply
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