201214924 六、發明說明： 【發明所屬之技術領域】 本揭示内容是有關於電力調度控制之裝置，且特別 是有關於一種應用於燃料電池及二次電池上的電力調度 控制裝置。 & 【先前技術】 燃料電池是利用電化學反應將化學能轉變為電能輸 出的一種電池裝置，其工作原理是利用含有氫之燃料與 氧化劑（空氣或是氧氣）分別輸送到電池的陽極與陰極， 陽極將燃料分解成氫離子與電子，氫離子從陽極透過質 子交換膜而至陰極，而與經外電路傳導至陰極之電子與 在陰極注入的氧氣，在陰極發生反應結合成為水。因此， 只要連續不斷地供應燃料與氧化劑，燃料電池就可以不 斷地發電。 燃料電池之供電過程涉及燃料濃度、反應溫度、燃 料的傳送與電子流的移動，因此，其輸出電壓電流受到 燃料電池狀態的影響很大。#動態負载裝置瞬間需要滿 足大電流時，燃料電池的電壓會大幅下降，並產出需要 的電流給負载。然而，在燃料電池中受限於反應物傳輸 的速度’很難在瞬間提供大功率給負載。且燃料電池在 負載變動的過程中，會因為燃料流量的改變而產生暫態 輸出不穩定的現象。 為了避免直接控制燃料電池的輸出；克服解決負載 變動瞬間燃料電池反應所產生電力不穩定的現象；以及 201214924 • 解決在大負載時可能的燃料不足問題，已有習用技術將 燃料電池搭配電谷器或二次電池來因應前述之問題。然 而，習用技術當判斷燃料電池供電不《時，_完全切換 為二次電池供電，如此-來，易使直流匯流排上的電壓 不穩，進而造成燃料電池的損壞。 又有另一種方式是將轉換控制器安裝於燃料電池 =，以控龍料電池的輸出料，然而，此種方式雖理 响上可行’但實務上電路設計複雜，而且燃料電池輸出 鲁功率並無法有效的控制而且造價昂貴，就實務面而言此 種方式並不理想。 综上所述，現今習用技術並無適當的機制來協調燃 料電池及二次電池穩定而且真正達到並聯式的供電。 【發明内容】 因此本揭示内谷之—技術態樣在於提供—種電力調 度控制電路’以克服上述燃料電池難以即時地跟隨負載 鲁變動，以及難與二次電池協調共同出力並聯供電的問題。 依據本揭示内容-實施方式，提出一種搭載於一燃料 電池及-二次電池上之電力調度控制電路，包括一直流匯 流排、-放電轉換器、—充電轉換器及—充電電流控制器。 直流匯流排-端電性連接燃料電池，另一端電性連接一負 載。放電轉換器具有-第一侧及一第二侧，第一側透過直 流匯流排並聯燃料電池，第二側並聯二次電池。充電㈣ ϋ具有帛御J及-第二側，第一側透過直流匯流排並聯 燃料電池’第二侧之一端點同極性連接二次電池。充電電 201214924 流控制器一端電性連接充電轉換器之第二側的另一 充電電流控制器的另一端電性連接二次電池。其中，右 電流控制器於燃料電池提供之電力大於負裁， 制充電轉換器對二次電池充電。 /時，控 本實施方式之電力調度控制電路的二次電池為磷酸鐘 鐵(UFeP04)電池，於系統啟動時使用一啟動電路酸裡 鐵電池來供給燃料電池之週邊設備所需電力 燃料電池’所以無需使用市電來啟動系 實：二之 #電力調度控制電路得以完全獨立供電。本實施方式之 定電壓輸出本式之電力調度控制電路的燃料電池為 控制’而此電壓酸減電池的放電轉換器所 接近其額定功率，】狀況，燃料電池的出力也可 ^燃枓電池的穩定輸出，並有效提昇燃料電池的效率及 •㈣本=調度控制電路更包含-燃料電池控 仑面财Li 監控與資料娜系統及一人機 池控制器用來控制並維持;電池電性連接，且燃料電 系統與二次電池電性以二常的運作。電池管理 二次電池之各項參數值，並】據也=7保護及1 龙很據參數值控制二次電池之充 -電腦L·系，⑽職入式工業 胃統錄料算+㈣力黯會對系 傻產㈣當的_命令，«調燃料電 [S3 6 201214924 人電池出力。人機介面透過RS_485通訊介面與電池 e、統及现控與資料擷取系統連接，做有效的人機溝通。 絲本，示内容之電力調度控制電路利用放電轉換 ^ 換器及充電電流控制器來調控燃料電池及二次 供電時機’不僅可穩定直流匯流排的電壓值，亦5 ，化整體設計電路的複雜度。此外，本揭示内容之電力調 又控電路的欠電池可在啟動時供給燃料電池週邊設備 所需的電力’使系統完全獨立於市電之外。201214924 VI. Description of the Invention: [Technical Field] The present disclosure relates to a device for power dispatch control, and more particularly to a power dispatch control device applied to a fuel cell and a secondary battery. & [Prior Art] A fuel cell is a battery device that uses electrochemical reactions to convert chemical energy into electrical energy. The working principle is to use a fuel containing hydrogen and an oxidant (air or oxygen) to be delivered to the anode and cathode of the battery, respectively. The anode decomposes the fuel into hydrogen ions and electrons. The hydrogen ions pass through the proton exchange membrane from the anode to the cathode, and the electrons that are conducted to the cathode through the external circuit and the oxygen injected at the cathode react with the cathode to form water. Therefore, as long as the fuel and the oxidant are continuously supplied, the fuel cell can continuously generate electricity. The fuel cell power supply process involves fuel concentration, reaction temperature, fuel transport, and electron flow movement. Therefore, its output voltage current is greatly affected by the state of the fuel cell. When the dynamic load device needs to meet a large current in an instant, the voltage of the fuel cell will drop drastically and the required current will be supplied to the load. However, it is difficult to provide high power to the load in an instant in a fuel cell limited by the speed at which the reactants are transported. Moreover, in the process of load change of the fuel cell, the transient output is unstable due to the change of the fuel flow rate. In order to avoid direct control of the output of the fuel cell; overcome the instability of the power generated by the fuel cell reaction at the moment of the load change; and 201214924 • Solve the problem of possible fuel shortage at large loads, the conventional technology has used the fuel cell with the electric grid Or a secondary battery to cope with the aforementioned problems. However, when the conventional technology judges that the fuel cell is not powered, _ completely switches to the secondary battery, so that the voltage on the DC busbar is unstable, which causes damage to the fuel cell. Another way is to install the conversion controller on the fuel cell = to control the output of the dragon battery. However, this method is quite feasible. However, the circuit design is complicated in practice, and the fuel cell outputs Lu power. It cannot be effectively controlled and is expensive, which is not ideal in terms of practice. In summary, today's conventional technologies do not have an appropriate mechanism to coordinate the stability of fuel cells and secondary batteries and truly achieve parallel power supply. SUMMARY OF THE INVENTION Therefore, the technical aspect of the present disclosure is to provide a power scheduling control circuit to overcome the problem that the fuel cell is difficult to follow the load fluctuation in real time, and it is difficult to coordinate the secondary battery to co-power the parallel power supply. According to the present disclosure-embodiment, a power dispatch control circuit mounted on a fuel cell and a secondary battery is provided, including a DC bus, a discharge converter, a charge converter, and a charge current controller. The DC bus-end is electrically connected to the fuel cell, and the other end is electrically connected to a load. The discharge converter has a first side and a second side, the first side is connected to the fuel cell in parallel through the DC bus bar, and the second side is connected in parallel with the secondary battery. Charging (4) ϋ has 帛J and - the second side, the first side is connected to the secondary battery through the DC busbar parallel fuel cell. Charging power 201214924 One end of the flow controller is electrically connected to the other end of the charging current controller and the other end of the charging current controller is electrically connected to the secondary battery. Wherein, the right current controller supplies more power to the fuel cell than the negative cut, and the charging converter charges the secondary battery. The secondary battery controlling the power dispatch control circuit of the present embodiment is a phosphoric acid bell iron (UFeP04) battery, and a start-up circuit acid iron battery is used to supply the fuel cell of the fuel cell peripheral device when the system is started. Therefore, it is not necessary to use the mains to start the system: the second power dispatch control circuit can be completely independently powered. The fuel cell of the power dispatch control circuit of the present embodiment is controlled to be 'the fuel cell of the voltage acid-reduced battery is close to its rated power, and the fuel cell output can also burn the battery. Stable output, and effectively improve the efficiency of the fuel cell and (4) this = dispatch control circuit is more included - fuel cell control and Li monitoring and information system and a human-machine pool controller used to control and maintain; battery electrical connection, and The fuel electric system and the secondary battery are operated in an ordinary manner. Battery management secondary battery parameters, and] according to also = 7 protection and 1 dragon is very dependent on the parameter value to control the secondary battery charge - computer L · system, (10) employment into the industrial stomach recording material calculation + (four) force黯 黯 系 ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( The human-machine interface is connected to the battery e, system and the current control and data acquisition system through the RS_485 communication interface for effective human-machine communication. Wire-based, the power dispatch control circuit of the content uses the discharge converter and the charge current controller to regulate the fuel cell and the secondary power supply timing' not only stabilizes the voltage value of the DC bus, but also 5, the complexity of the overall design circuit degree. In addition, the under-battery of the power regulation and control circuit of the present disclosure can supply the power required by the fuel cell peripherals at startup to make the system completely independent of the mains.
【實施方式】[Embodiment]
立燃料電池因具備能量轉換效率高與零污染排放、低聲 :等特點’被世界寄予厚望足以取代傳統燃油發電產生廢 ，的動力機。因此，本案發明人基於實務經驗及多年研究， =出一種電力調度控制電路，以促成產業之進步。具體内 容請參考第1圖，第丨圖繪示本揭示内容一實施方式之電 力調度控制電路的示意圖。如圖所示，本實施方式之電力 調度控制電路100配合搭載於一燃料電池110及一二次電 池120上’電力調度控制電路100包括一直流匯流排130、 一放電轉換器140、一充電轉換器150及一充電電流控制 器16〇 ’用以調控燃料電池110及二次電池120的供電時 機’不僅可穩定直流匯流排130的電壓值，亦可簡化整體 设计電路的複雜度。 在具體實作上，本實施方式以質子交換膜燃料電池實 現第1圖中的燃料電池110，其所使用的固態電解質薄膜 具有常溫操作及啟動迅速的優勢。此外，本實施方式中的 201214924 燃料電池110操作在額定電壓，其最大額定功率為300W。 直流匯流排130 —端電性連接燃料電池110，另一端 電性連接一負載170。為了避免燃料電池110於反應的暫 態不穩定現象所產生之電力供應不穩定，或因負載170變 動需要有瞬間大電力輸出，造成負載170無法接收對應電 力的狀況，本實施方式之電力調度控制電路100除了使用 燃料電池110供應負載170外，另搭配二次電池120來烘 應當負載170超出燃料電池110最大功率負荷時的電力需 求；其中，可作為二次電池120使用的電池種類頗多，例 如構酸裡鐵(LiFeP〇4)電池。 放電轉換器140具有一第一侧141及一第二側142， 第一侧141透過直流匯流排130並聯燃料電池110，第二 側142並聯二次電池120。換言之，燃料電池110透過直 流匯流排130經由放電轉換器140與二次電池120並聯相 接。另一方面，充電轉換器150具有一第一側151及一第 二側152，第一侧151透過直流匯流排130並聯燃料電池 110，第二側152之一端點同極性連接二次電池120。充電 電流控制器160—端電性連接充電轉換器150之第二侧152 的另一端點，充電電流控制器160的另一端電性連接二次 電池120。 在本實施方式中燃料電池110為系統的主要電力，二 次電池120為辅助電力。當負載170需求較低時，燃料電 池110 —方面供應負載170需求，另一方面經由充電轉換 器150及充電電流控制器160共同限制充電電流，使燃料 電池110被精準的維持在穩定的輸出電壓並對二次電池 201214924 120充電，故本設計之燃料電池為定電壓輸出，其保持預 設的燃料電池額定電壓，且讓燃料電池以定電壓操作得以 延長燃料電池的使用壽命；當負載170需求超過燃料電池 110能力時，二次電池120經由放電轉換器140來提供超 出燃料電池110負载的電力，使得直流匯流排130的電壓 維持在燃料電池11〇的額定電壓。 值得一提的是，二次電池120可供給燃料電池11〇之 週邊β又備所需電力，藉以令系統獨立化，如此一來，本實 • 施方式之電力調度控制電路100無需使用市電來啟動系統 並可完全獨立供電。 第2圖繪示第1圖之電力調度控制電路充電電流控制 器的内部控制電路圖。如圖所示，為了控制二次電池12〇 的充電電流使得直流匯流排得以維持固定電壓，充電轉換 器150連接的充電電流控制器ι6〇使用M〇SFET切換電路 161來實現充電電流大小控制，MOSFETIRF2804為主要閘 道它能精準控制電流流過，當錳銅線流經分流器產生的回 φ 授電麗小於參考電壓時，比較器LM311N將會送出符合期 望電流的工作週期（duty cycle)到MOSFETIRF2804上。 第3圖繪示本揭示内容另一實施方式之電力調度控制 電路的示意圖。如圖所示，本實施方式之電力調度控制電 路200與前述實施方式大致相同，在此不予贅述，然，本 實施方式除了前述實施方式之元件外，更包含一燃料電池 控制器210、一電池管理系統220、一監控與資料擷取系統 230及一人機介面。 燃料電池控制器210與燃料電池11〇電性連接，燃料 201214924 電池控制器210用來控制並維持燃料電池no正常的運作。 理备^理系統22G與—次電池120電性連接，電池管 理系、先22G用以保護及量測二次電池m之各項參數 參數值控制二次電池⑽之充放電流大小。本實施 方式，池管理系統22〇主要是由微控㈣、電& ^殘餘電量估測電路所建構而成，本實施方式選用8顆 串聯的碟酸賴電池為二次電池，將電 獅鐵電池的二端’以量測每一顆電池的電^ = 電流和電池溫度等參數。當“中發生操作條件 異常情況的發生時，包括過充電、過放電、過溫度、過電 流和短路時均會啟動自動保護機制，將磷酸鋰鐵^池用繼 電器221切離直流匯流排電壓迴路，以保護碟酸鐘鐵電池。 監控與資料擷取系統230透過一類比數位轉換器231 與直流匯流排130電性連接，並藉由嵌入式工業電腦擷取 系統多個參數，電力調度邏輯會對系统錄做計算判段後 產生適當的控制命令，來協調燃料電池110與二次電池12〇 出力。 - 轉=介面2料過- RS_485通訊介面241與電池管理 ί L I及監控與=#料練系統230連接。第4圖繪示第 人^入電力調度控制電路人機介面的示意圖。如圖所示， =面240上的物理顯示值和實際感測器欲顯示及置放 二韓：1目同’而燃料電池的電壓、電流、功率和效率、放 器、充電轉換器、充電電流控制器和負㈣雷力數 值，於人機介面240上，且本實施方== 轉，此將所有㈣的數據依時間順序記錄下來，以每秒為 201214924 一個單位紀錄，根據日期建立檔案名稱，存放於IPC主機 的Compact Flash硬碟内，運轉參數的趨勢圖同樣能夠藉由 人機介面240上的標籤按鈕按出而獲得。 在混合電力人機介面之頁面中也安裝了控制用的兩種 電子負載切換面板，此安排能讓負載改變的同時觀察到電 力潮流，實驗結果在完整的人機介面上以即時的方式呈現。 舉例來說，本實施方式可使用博計公司的3330可程式 電子負載及自行組裝的電子式負載來做負載變動的模擬， 可程式電子負載能夠模擬定電流或定電壓的負載，換句話 說電子式負載能夠藉由整合在SCADA系統中且經由 RS-485作通訊。 以下將揭露本揭示内容之實驗結果，藉此說明本揭示 内容上述實施方式之電力調度控制電路，確實具有所需要 的物理特性。應瞭解到，在以下敘述中，已經在上述實施 方式中提到的要件將不再重複贅述，僅就需進一步界定者 加以補充。 以下提出兩種加載方式來測試本揭示内容之電力調度 控制電路。第一種加載方式為不斷持續加載，直到系統達 到最大的輸出功率為止；第二種加載方式為脈衝式加載， 來測試電力調度控制電路在負載變動時的供電能力。這兩 種加載方式，係採用質子交換膜燃料電池及磷酸鋰鐵電池 為供電源。 接下來以第5-7圖來說明第一種加載方式。請參照第5 圖，第5圖繪示第一種加載方式之電力調度控制電路的電 流趨勢圖。如圖所示，内部負載所需電流約0.5A，質子交 201214924 池之輸出功率達最;^值二增加子s質子，膜燃料電 子交換膜燃料電二電定力的最大輸出功率為質 纖池經過電力轉換器後功的的=率與鱗酸 料電池以定電壓的條件輸出功率的:;赶=;換:燃 功率的負載或電流皆由雜鐵電池出 應，以維持直流匯流排的電壓=過電力轉換器來供 壓』圖6圖i會=一種加载方式之電力調度控制電路的電 -料電池的電壓與電流趨勢圖。如圖所 ;交換】制電路中直流匯流排的電壓值會賴 的變化而變化，除τ在質子交換膜燃料 壓值幾乎維^穩定=匯流排或質子交換膜燃料電池的電 8圖接^以第Μ〇圖來說明第二種加載方式。請參考第 電法趨熱HI圖繪不第一種加載方式之電力調度控制電路的 如圖所示，本實施例利用範圍為25,至5〇〇w 的脈衝式加載，且持續2分鐘(8個週期)來進行測&若把 之:力::。在内，本電力調度控制電路之 ㈣2圖繪示第二種加載方式之電力調度控制電路的電 ，趨勢圖。如圖所示，質子交換膜燃料電池持續以額定功 率300W(14A@22V)輸出’當外部負載達5〇〇w的高負載 12 201214924 時，罐酸鐘鐵電池 協助質子交換膜燃電功率約250W(12A@22 V)的電力來 3〇〇W以下的低'負電池一起供應負載；當外部負載處於 载並對磷酸鋰鐵電池涛’質子交換膜燃料電池可獨立供應負 下次高負載時能有進行充電的動作，讓磷酸鋰鐵電池在 一起供應負載所需電，的電力來協助質子交換膜燃料電池 第1 〇圖、纟會示笛_ 質子交換_%1· 種加㈣紅電力調度控制電路中 子交換膜“壓與功率趨勢圖°如圖所示，質 負載中也能正酸賴綱輔助下’於脈衝式的 制電知，_本揭μ容之電力調度控 峪無5"疋在外部負載持續增加或脈衝式負載的情況 ，，由放電轉換器、充電轉換器及充電電流控制器二調 二，直流匯流排的電壓值維持穩定，且此種調控方式大 簡化整體設計電路的複雜度。又本揭示内容之電力調度抑 制電路的二次電池可供給燃料電池週邊設備所需的電=二 鲁使系統獨立化而無需使用市電。 雖然本揭示内容已以諸實施方式揭露如上，然其並非 用以限定本揭示内容，任何熟習此技藝者，在不脫離本揭 不内容之精神和範圍内，當可作各種之更動與潤飾，因此 本揭示内容之保護範圍當視後附之申請專利範圍所界定者 【圖式簡單說明】 第1圖繪示本揭示内容一實施方式之電力調度控制電 m 13 201214924 路的示意圖； 。第2圖繪示第1圖之電力調度控制電路充電電流控制 器的内部控制電路圖； 第3圖繪示本揭示内容另一實施方式之電力調度控制 電路的示意圖； 第4圖繪示第3圖之電力調度控制電路人機介面的示 意圖； 第5圖繪示第一種加載方式之電力調度控制電路的電 流趨勢圖； • 也c 一 第6圖繪示第一種加載方式之電力調度控制電路的電 壓趨勢圖； 第7圖繪示第一種加載方式之電力調度控制電路中質 子交換膜燃料電池的電壓與電流趨勢圖； 第8圖繪示第二種加載方式之電力調度控制電路的電 流趨勢圖； 第9圖繪示第二種加載方式之電力調度控制電路的電 壓趨勢圖； 鲁 第圖繪示第二種加載方式之電力調度控制電路中 質子交換膜燃料電池的電壓與功率趨勢圖。 【主要元件符號說明】 201214924 100 電力調度控制電路 110 :燃料電池 120 二次電池 130 :直流匯流排 140 放電轉換器 141 :第一側 142 第二側 150 :充電轉換器 151 第一側 152 :第二側 160 充電電流控制器 161 : MOSFET切換電路 170 負載 200 :電力調度控制電路 210 燃料電池控制器 220 :電池管理系統 221 繼電器 230 :監控與資料擷取系統 231 類比數位轉換器 240 :人機介面 241 RS-485通訊介面The fuel cell has the characteristics of high energy conversion efficiency, zero pollution emission, low sound, etc., which has been highly hoped by the world to replace the traditional fuel-fired power generation. Therefore, the inventor of this case based on practical experience and years of research, = a power dispatch control circuit to promote the progress of the industry. For details, please refer to FIG. 1 , which is a schematic diagram of a power dispatch control circuit according to an embodiment of the present disclosure. As shown in the figure, the power dispatch control circuit 100 of the present embodiment is mounted on a fuel cell 110 and a secondary battery 120. The power dispatch control circuit 100 includes a DC bus 130, a discharge converter 140, and a charge conversion. The device 150 and a charging current controller 16'' for regulating the power supply timing of the fuel cell 110 and the secondary battery 120' not only stabilize the voltage value of the DC bus 130, but also simplify the complexity of the overall design circuit. In a specific implementation, the present embodiment implements the fuel cell 110 of Fig. 1 in a proton exchange membrane fuel cell, and the solid electrolyte membrane used therein has the advantages of normal temperature operation and rapid startup. Further, the 201214924 fuel cell 110 in the present embodiment operates at a rated voltage, and its maximum rated power is 300W. The DC bus bar 130 is electrically connected to the fuel cell 110, and the other end is electrically connected to a load 170. In order to prevent the power supply of the fuel cell 110 from being unstable due to the transient instability of the reaction, or the instantaneous large power output due to the fluctuation of the load 170, the load 170 cannot receive the corresponding power, and the power dispatch control of the present embodiment In addition to using the fuel cell 110 to supply the load 170, the circuit 100 is further equipped with the secondary battery 120 to bake the power demand when the load 170 exceeds the maximum power load of the fuel cell 110; among them, there are many types of batteries that can be used as the secondary battery 120. For example, a lithium iron (LiFeP〇4) battery. The discharge converter 140 has a first side 141 and a second side 142. The first side 141 is connected to the fuel cell 110 via the DC busbar 130, and the second side 142 is connected to the secondary battery 120. In other words, the fuel cell 110 is connected in parallel to the secondary battery 120 via the discharge converter 140 through the DC bus 130. On the other hand, the charging converter 150 has a first side 151 and a second side 152. The first side 151 is connected to the fuel cell 110 via the DC bus bar 130, and one end of the second side 152 is connected to the secondary battery 120 in the same polarity. The charging current controller 160 is electrically connected to the other end of the second side 152 of the charging converter 150, and the other end of the charging current controller 160 is electrically connected to the secondary battery 120. In the present embodiment, the fuel cell 110 is the main power of the system, and the secondary battery 120 is the auxiliary power. When the demand of the load 170 is low, the fuel cell 110 supplies the load 170 demand, and on the other hand, the charging current is limited by the charging converter 150 and the charging current controller 160, so that the fuel cell 110 is accurately maintained at a stable output voltage. The secondary battery 201214924 120 is charged, so the fuel cell of the design is a constant voltage output, which maintains the preset fuel cell rated voltage, and allows the fuel cell to operate at a constant voltage to prolong the life of the fuel cell; when the load 170 is required When the capacity of the fuel cell 110 is exceeded, the secondary battery 120 provides power exceeding the load of the fuel cell 110 via the discharge converter 140 such that the voltage of the DC bus 130 is maintained at the rated voltage of the fuel cell 11A. It is worth mentioning that the secondary battery 120 can supply the required power to the periphery of the fuel cell 11 to make the system independent, so that the power dispatch control circuit 100 of the present embodiment does not need to use the commercial power. Start the system and supply it completely independently. Fig. 2 is a diagram showing the internal control circuit of the charge current controller of the power dispatch control circuit of Fig. 1. As shown in the figure, in order to control the charging current of the secondary battery 12〇 so that the DC bus is maintained at a fixed voltage, the charging current controller connected to the charging converter 150 uses the M〇SFET switching circuit 161 to realize the charging current size control. MOSFETIRF2804 is the main gate. It can accurately control the current flow. When the manganese copper wire flows through the shunt and the return φ is less than the reference voltage, the comparator LM311N will send the duty cycle to the desired current. On the MOSFET IRF2804. FIG. 3 is a schematic diagram of a power dispatch control circuit according to another embodiment of the present disclosure. As shown in the figure, the power dispatch control circuit 200 of the present embodiment is substantially the same as the above-described embodiment, and details are not described herein. However, the present embodiment further includes a fuel cell controller 210 and a unit in addition to the components of the foregoing embodiments. The battery management system 220, a monitoring and data capture system 230, and a human machine interface. The fuel cell controller 210 is electrically connected to the fuel cell 11 and the fuel 201214924 is used to control and maintain the normal operation of the fuel cell no. The control system 22G is electrically connected to the secondary battery 120. The battery management system and the first 22G are used to protect and measure the parameters of the secondary battery m. The parameter value controls the charge and discharge current of the secondary battery (10). In this embodiment, the pool management system 22 is mainly constructed by a micro-control (four), electric & ^ residual electric quantity estimation circuit. In this embodiment, eight serial-disc batteries are used as secondary batteries, and the electric lion is used. The two ends of the iron battery are used to measure the electrical current and battery temperature of each battery. When the occurrence of an abnormal operating condition occurs, including overcharging, overdischarging, overtemperature, overcurrent, and short circuit, an automatic protection mechanism is activated to cut the lithium iron phosphate pool relay 221 away from the DC bus voltage loop. To protect the disc acid clock battery. The monitoring and data acquisition system 230 is electrically connected to the DC bus 130 through an analog-to-digital converter 231, and the embedded industrial computer captures multiple parameters of the system, and the power dispatch logic After the system is recorded, the appropriate control commands are generated to coordinate the fuel cell 110 and the secondary battery 12. - Turn = interface 2 material - RS_485 communication interface 241 and battery management ί LI and monitoring and = #料The training system 230 is connected. Fig. 4 is a schematic diagram showing the human interface of the first person into the power dispatch control circuit. As shown in the figure, the physical display value on the face 240 and the actual sensor are to be displayed and placed in the second Han: 1) Same as 'the voltage, current, power and efficiency of the fuel cell, the discharger, the charge converter, the charge current controller and the negative (four) lightning force value on the human-machine interface 240, and the present embodiment == turn This records all (4) data in chronological order, with a unit record of 201214924 per second. The file name is created according to the date and stored in the Compact Flash hard disk of the IPC host. The trend graph of the operating parameters can also be accessed through the human-machine interface. The label button on the 240 is obtained. The two electronic load switching panels for control are also installed on the page of the hybrid power man-machine interface. This arrangement allows the load to be changed while observing the power flow. The experimental results are complete. The human-machine interface is presented in an instant manner. For example, in this embodiment, the 3330 programmable electronic load of the company and the self-assembled electronic load can be used to simulate the load variation, and the programmable electronic load can simulate the constant current. Or a constant voltage load, in other words, an electronic load can be integrated in the SCADA system and communicate via RS-485. The experimental results of the present disclosure will be disclosed below, thereby illustrating the power dispatching of the above embodiment of the present disclosure. The control circuit does have the required physical properties. It should be understood that in the following description The requirements that have been mentioned in the above embodiments will not be repeated, and will only be supplemented if further definition is required. Two types of loading methods are proposed to test the power dispatch control circuit of the present disclosure. The first loading mode is continuous Loaded until the system reaches the maximum output power; the second loading mode is pulsed loading to test the power supply capability of the power dispatch control circuit when the load changes. These two loading methods use proton exchange membrane fuel cells and phosphoric acid. The lithium iron battery is the power supply. Next, the first loading method will be described with reference to Figure 5-7. Please refer to Figure 5, which shows the current trend graph of the power dispatch control circuit of the first loading mode. As shown in the figure, the current required for the internal load is about 0.5A, the output power of the proton exchange 201214924 is the highest; the value of the second is increased by the proton s proton, and the maximum output power of the membrane fuel electronic exchange membrane fuel electric two constant force is the quality fiber pool. The power output of the power converter and the output power of the scale acid battery with a constant voltage:; rush =; change: the load or current of the fuel power is The hybrid iron battery is used to maintain the voltage of the DC busbar = the overvoltage converter supplies the voltage. Figure 6 Figure i will be a load-mode power dispatch control circuit for the voltage and current trend of the battery. As shown in the figure; exchange] the voltage value of the DC bus in the circuit will vary depending on the change, except for the τ in the proton exchange membrane fuel pressure value is almost stable ^ stability = bus bar or proton exchange membrane fuel cell battery 8 The second loading method is illustrated in the figure. Please refer to the electric current heating HI diagram to draw the power dispatch control circuit of the first type of loading. As shown in the figure, this embodiment utilizes a pulsed loading range of 25 to 5 〇〇w for 2 minutes ( 8 cycles) to test & if it is: force::. In the figure, (4) 2 of the power dispatch control circuit shows the power and trend graph of the power dispatch control circuit of the second loading mode. As shown in the figure, the proton exchange membrane fuel cell continues to output at a rated power of 300W (14A@22V). When the external load reaches 5〇〇w of high load 12 201214924, the tank acid iron battery assists the proton exchange membrane power consumption of about 250W. (12A@22 V) power supply to the low 'negative battery below 3 〇〇W to supply the load; when the external load is loaded and the lithium iron phosphate battery 'proton exchange membrane fuel cell can be independently supplied negative negative next high load It is possible to carry out the charging action, let the lithium iron phosphate battery supply the electric power required by the load together, and assist the proton exchange membrane fuel cell. The first diagram, the 纟 will show the flute _ proton exchange _%1 · species plus (four) red power In the dispatching control circuit, the sub-exchange membrane "pressure and power trend graph ° as shown in the figure, the mass load can also be assisted by the acid-assisted schematic" in the pulse-type power generation, _ the disclosure of the capacity of the power dispatch control 5"疋In the case of continuous increase of external load or pulsed load, the voltage value of the DC busbar remains stable by the discharge converter, the charge converter and the charge current controller, and the control mode greatly simplifies the whole Assume The complexity of the circuit. The secondary battery of the power dispatch suppression circuit of the present disclosure can supply the power required by the fuel cell peripheral device to make the system independent without using the commercial power. Although the present disclosure has been implemented in various embodiments. The above disclosure is not intended to limit the disclosure, and any person skilled in the art can make various changes and refinements without departing from the spirit and scope of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS [FIG. 1] FIG. 1 is a schematic diagram of a power dispatch control electric m 13 201214924 road according to an embodiment of the present disclosure; FIG. 2 is a power dispatch diagram of FIG. FIG. 3 is a schematic diagram of a power dispatch control circuit of another embodiment of the present disclosure; FIG. 4 is a schematic diagram of a human machine interface of the power dispatch control circuit of FIG. 3; Figure 5 is a diagram showing the current trend of the power dispatch control circuit of the first loading mode; • also a sixth figure showing the first loading side The voltage trend graph of the power dispatch control circuit of the type; FIG. 7 is a graph showing the voltage and current trend of the proton exchange membrane fuel cell in the power dispatch control circuit of the first loading mode; FIG. 8 illustrates the second loading mode The current trend graph of the power dispatch control circuit; FIG. 9 illustrates the voltage trend graph of the power dispatch control circuit of the second loading mode; and the Ludi diagram shows the proton exchange membrane fuel cell of the power dispatch control circuit of the second loading mode Voltage and power trend graph [Main component symbol description] 201214924 100 Power dispatch control circuit 110: Fuel cell 120 Secondary battery 130: DC bus 140 Discharge converter 141: First side 142 Second side 150: Charging converter 151 first side 152: second side 160 charging current controller 161: MOSFET switching circuit 170 load 200: power dispatch control circuit 210 fuel cell controller 220: battery management system 221 relay 230: monitoring and data acquisition system 231 analog digital Converter 240: Human Machine Interface 241 RS-485 Communication Interface