201212476 六、發明說明： . 【發明所屬之技術領域】 • 本發明係提供一種燃料電池之技術領域，尤指其技術上 提供一種藉由輔助裝置與輔助電池系統設計燃料電池之輸 出電力控制方法。 【先前技術】 為因應石油日漸枯竭以及氣候暖化的問題’替代能源 Φ 的研發與應用日益受到各國的重視，而其中又以氫能發展 最為重要。燃料電池因為能量轉換效率高且副產物為乾淨 無污染的水，更是氫能發展之重點目標。燃料電池系統之 供電過程涉及到熱管理、水管理、燃料供應以及電力調節 與控制等次系統之搭配，而燃料電池本身又涉及到反應溫 度、反應物濃度、輸出電壓與輸出電流。由於電力能源的 有效管理，乃能夠提昇用電的電子裝置（例如筆記型電腦 Φ 、行動電話…等）更長的使用時間以及穩定的電力供應。 因此，應用燃料電池時，如何讓燃料電池系統的運作能夠 被有效地管理’使其能夠被控制且一直維持在最佳狀態下 運作，以增加其效能'可靠度與使用壽命，此般技藝至今 尚十分欠缺。 一般而言’燃料電池的 的影響很大，根據燃料電池 提高時，則輸出電壓會降低 輸出電壓與輪出電流受到負載 的極化曲，線，當輸出電流需求 反之，當輪出電流需求降低 201212476 時’則輸出電懕舍蔣古 ,,.. , .會棱问。此外，當燃料電池被應用於動態 負載時，如果負載變動的時間太短，燃料電池受限於反應 機制’很難在瞬間提供足夠的功率給負載，導致電力不足 或電力不穩之現象，且若燃料電池處於低負載情況下操作 輸出電机降低、輸出電壓提高，亦會造成燃料電池過度 反應形成空燒問題。因此，在習知技術中，會在燃料電池 系統中搭配至少一個輔助電池（二次電池）來解決電力不 足或電力不穩之現象。然而，如果操作電壓擺幅過劇或者 I動太頻繁’將會造成燃料電池與輔助電池提早劣化，且 在習知技術中’對於燃料電池處於低負載情況下操作，皆 以停止燃料電池運轉並以辅助電池單獨供電。然而，輔助 電池在長時間的消耗下，對於提供動態高負載能力相對降 低，造成系統供電不足的問題。另外，在控制燃料電池時 會偵測燃料與空氣（氧氣）的流量，藉以控制燃料電池的 輪出功率，此方法會使用到大量的流量感測元件，造成系 統過大，以及成本增加且無法以主動的方式控制燃料電池 的輸出狀態。有鑑於上述習知燃料電池系統的缺失，以及 用於燃料電池系統的電力能源管理的日殷重要性，本發明 人乃亟思發明用於燃料電池系統的控制方法，以及使用該 控制方法的燃料電池系統。 疋以，針對上述習知結構所存在之問題點，如何開發 -種更具理想實用性之創新結構，實是消費者所殷切企盼 201212476 之製造開發 慎評估後， ，亦係相關業者須努力研發突破之目標及方向 有鑑於此，發明人本於多年從事相關產品 與設計經驗，針對上述之目標，詳加設計與審 終得一確具實用性之本發明。 【發明内容】 本發明係智慧型主動控制燃料電池系統，提供—種控 制輸出電壓的方法以及使用該护剎 工 用忑控制方法的燃料電池系统。201212476 VI. Description of the Invention: [Technical Field of the Invention] The present invention provides a technical field of a fuel cell, and more particularly to a method for controlling an output power of a fuel cell by an auxiliary device and an auxiliary battery system. [Prior Art] In order to cope with the depletion of oil and the problem of climate warming, the research and development and application of alternative energy Φ have received increasing attention from various countries, and among them, the development of hydrogen energy is the most important. Fuel cells are the key targets for hydrogen energy development because of their high energy conversion efficiency and by-product clean and non-polluting water. The fuel cell system's power supply process involves the combination of thermal management, water management, fuel supply, and sub-systems such as power conditioning and control. The fuel cell itself involves reaction temperature, reactant concentration, output voltage, and output current. Due to the effective management of electric energy, it is possible to increase the use time of electronic devices (such as notebook computers Φ, mobile phones, etc.) and stable power supply. Therefore, when applying a fuel cell, how to make the operation of the fuel cell system be effectively managed 'to enable it to be controlled and always maintained in an optimal state to increase its performance' reliability and service life. Still very lacking. Generally speaking, the influence of the fuel cell is very large. When the fuel cell is increased, the output voltage will lower the output voltage and the output current is affected by the polarization of the load, and the line, when the output current demand is reversed, when the output current is reduced. At the time of 201212476, the output of the electric 懕 蒋 蒋 Jiang Gu,,.., . In addition, when the fuel cell is applied to a dynamic load, if the load changes for too short a time, the fuel cell is limited by the reaction mechanism 'it is difficult to provide sufficient power to the load in an instant, resulting in insufficient power or power instability, and If the fuel cell is operated under a low load, the output motor is lowered and the output voltage is increased, which may cause the fuel cell to overreact to form an air-burning problem. Therefore, in the prior art, at least one auxiliary battery (secondary battery) is provided in the fuel cell system to solve the problem of insufficient power or power instability. However, if the operating voltage swing is too high or the I move too frequently 'will cause the fuel cell and the auxiliary battery to deteriorate prematurely, and in the prior art, 'the fuel cell operates at a low load, the fuel cell is stopped and The auxiliary battery is separately powered. However, under the long-term consumption of the auxiliary battery, the problem of providing a dynamic high load capacity is relatively low, resulting in insufficient system power supply. In addition, when controlling the fuel cell, the flow rate of fuel and air (oxygen) is detected to control the fuel cell's wheeling power. This method uses a large number of flow sensing components, causing the system to be too large, and the cost is increased and cannot be The active mode controls the output state of the fuel cell. In view of the above-described lack of the conventional fuel cell system and the importance of the power energy management for the fuel cell system, the inventors have invented a control method for a fuel cell system, and a fuel using the same. Battery system. In view of the problems in the above-mentioned conventional structure, how to develop an innovative structure with more ideal and practicality is really a consumer's eagerness to look forward to the careful evaluation of the manufacturing development of 201212476, and it is also necessary for the relevant industry to work hard to develop The goal and direction of the breakthrough In view of this, the inventor has been engaged in related products and design experience for many years, and has specifically applied the invention to the above-mentioned objectives. SUMMARY OF THE INVENTION The present invention is a smart active control fuel cell system, a method for controlling an output voltage, and a fuel cell system using the brake control method.
該控制方法係將燃料電池系統的運轉分為數種模式並依 據燃料電池系統中之電壓、電流及溫度訊號決定燃料電： 系統的運轉模式及燃料電池陰極空氣進口量的運轉模式。 此為本發明之主要目的。為達成上述目的，本發明亦提供 可用以實施燃料電池系統控制方法。 有關本發明所採用之技術、手段及其功效，茲舉一較 佳實例並配合圖式詳加說明於后，相信對本發明之目的、 # 構造及特徵’當可由之得一深入而具體的瞭解。 【貫施方式】 本發明係提供一種藉由輔助裝置與輔助電池系統設計 燃料電池之輸出電力控制方法。 參閱第一圖所示’係本發明之系統架構圖，本發明的 燃料電池系統至少包含有：一燃料電池（丨〇 )、一系統輔助 裝置組件（Balance of Plant，BOP)(20)、一能量管理控制 系統（Energy Management System，EMS)(30)、~ 第一電壓 201212476 調整電路（40)、一第二電壓調整電路（50)、一輔助電池 (6 0)(例如錯酸電池、鐘鐵電池、超級電容…等可作為二欠 儲能單元）以及與該輔助電池（60)相並聯之一系統負載 (70) 〇 請參閱第一、二圖所示’係該能量管理控制系統單元 圖’該能量管理控制系統（EMS)( 30)包含：中央處理器單元 (CPU) (31)、偵測單元（32 )與控制策略方法（3 3)。其中中央 處理器單元（CPUK31)至少包含有計時器（311)、記憶體 (313)、邏輯運算單元（314)及輸入/輪出控制單元（I/〇 p〇rt Control Unit)(31 2)。而儈測單元（32)可偵測： (a) 燃料電池的操作溫度、環境溫度及輸出電壓與電流值 (321)。 (b) 系統負載的工作電壓與電流（3 2 2 )。 (c) 輔助電池的工作電壓與電流（323)。 (d) 第一與第二電壓調整電路的輸出電壓與電流（324)。 並將偵測數據提供該系統中央處理單元（31)做輸出控 制判斷，且由控制策略方法（3 3)將燃料電池系統的運轉控 制策略分為數種模式。 另外’§亥燃料電池系統中的第一電壓調整電路（4 〇)， 係將燃料電池（1〇)輸出電壓調整至輔助電池（6〇)與系統負 載（7〇)可使用之電壓；而第二電壓調整電路（50)，乃使該 輔助電池（60)之電力電壓經由該第二電壓調整電路（5〇)轉 201212476 換後，供應系統辅助裝置組件（2〇) (B〇p)之運作 • 其中第一電壓調整電路（40)與第- 興弟—電壓調整電路（50) - 功能可包含： (a) 升壓功能 (b) 降壓功能 (c )穩壓功能 (d)控制輸出電流 φ (e)功率控制功能 (f)輸出迴路切換（〇n/〇ff) 參閱第二、三圖所示，在系統輔助裝置組件（20) (B0P) 上’至少包含單元如下： (a) 燃料供應運轉 得之、，且件（21)，例如燃料泵（Fuei Feed Pump)等相關組件。 (b) 空氣供應運轉之組件(22)，例如空氣泵(Air Pump) I 及循環泵（Circulation Pump)等。 政”、、系統（23)，例如風扇（Fan)及冷凝器（Condenser)等 〇 (d)陰極與陽極輸入輸出組件（24)。 )·‘”：料儲存系統（25),例如氫氣瓶、燃料罐及燃料混 合儲存罐（Mixing Tank)等。 在控制策略方法（33)上，控制方法將燃料電池系統的運 轉分為四稽；(:宣4、 , 偶式’包括啟動調整模式（331)、充電調整模式 201212476 (332)、全載調整模式（333)及輕載調整模式（334)，以下配合 其工作流程（流程圖請參閱第四〜七圖所示），將此四種運^ 模式說明如下： ⑷啟動調整模式（331):起始動作，其係將燃料電池系統開機之 切換裝置啟動，使系統處於全開的狀態，SW1設定為〇ff而 SW2設定為〇n，在啟動時首先判斷負載是否在操作運行中， 當負載工作電流（/|Md)小於負載最小工作電流時，則進 入充電調整模式（332)(燃料電池（1〇)對輔助電池(6〇)充電）；當負 載工作電流（〇大於燃料電池（10)之工作電流（/rc)且負載工 作電流大於第一電壓調整電路所輸出之電流（〇時則進 入全載調整模式（333);當負載工作電流（仏j小於燃料電池（1〇) 之工作電流（/fc)及第一電壓調整電路所輸出之電流（〇，且該 第一電壓調整電路輸出值（〇大於輔助電池（6〇)之電壓放電 目標設定值（〇 ’則進入輕載調整模式（334)。本啟動調整 模式流程圖可參閱第四圖。 (b)充電調整模式（332):進入充電調整模式（332)後，SW1改為 On而SW2為Off ’且能量管理控制系統（3〇)(EMs)持續量測 (D、（K)、（/FC)及（G)，使輔助電池(60)得到燃料電池（10)的能 量（原輔助電池（60)電力在非飽和狀態）；當（心）小於燃料電池 (10)之電流設定值（/sys)，且（〇大於輔助電池（6〇)之充電電壓 目標設定值（L,in)，則宣告輔助電池（60)充電完成；若上述有任 一條件未成立’則燃料電池（1 〇)處於繼續對輔助電池(6 〇)充電狀 201212476 先、，若（/,Md)大於（/min)則燃料電池（1 〇)進入全載調整模式（333); 若在Uead)小於（/_)下，而（〇小於u或（/FC)小於u>s)時，則 能量管理控制系統（3〇)(EMS)控制第二電壓調整電路輸出值（Μ ，使其能適當調整系統輔助裝置組件（2〇)(Β〇ρ)，達到燃料電池 (10)陰極側的空氣（氧氣）輸入量減縮至適當值，進而適當降低燃 料電池（ίο)對輔助電池（60)的充電電量；若在（J_)小於（kn) 下’而（K)大於（rsetin)且（/rc)大於（/s，s)則燃料電池系統進入輕載 調整模式（334)。本充電調整模式流程圖可參閱第五圖。 (c)全載5周整模式（333):在此模式下SW1為Off，sW2則為 〇n，而燃料電池（1〇)乃將其所產生之電力全部供應給負載使用 ，不足的部份則由輔助電池（60)提供，此時能量管理控制系統 (30)(EMS)控制第二電壓調整電路輸出值（〇使其調至最大值 從而此3周整系統輔助裝置組件（2 〇) (B 〇 P )，達到燃料電池 (1 〇)陰極側的空氣（氧氣）輸入量增加至最大值；於此模式中，能 量管理控制系統(30)(EMS)持續量測（〇、⑻、（/。,）及化）；若 (〇不等於（〇，或在（〇等於（〇下而（〇小於（^)則能量管理 控制系統（30)(EMS)控制第一電壓調整電路之輸出值使其 調至適當值以配合燃料電池（1〇)之輸出（Fi)共同輸出至負 載；若（〇等於（G)，（〇大於（/min)且（〇大於（D時，則系統 進入充電調整模式（332)(燃料電池（1 〇)對輔助電池(6〇)充電”若 (β)專於（G )，（ /⑽,）大於（/_)而（〇小於（rsys)時，則燃料電池系統 仍維持全載調整模式（333)。本全載調整模式流程圖可參閱第六 201212476 圖。 (d)輕載調整模式（334):在此模式下SW1為〇n，SW2則為 Of f，因負載使用電力較低，故燃料電池（10)之電力可供系統輔 助裝置組件（20)(BOP)運轉及較低負載使用；此時能量管理_制 系統(30)(EMS)持續運作，其電力由輔助電池(6〇)提供，並且不 斷量測uMd)、w、⑹及⑻；若（/|。」小於（/min)則系統進入充 電調整模式（332)(燃料電池（1〇)對輔助電池（6〇)充電）；若（/^) 大於（D而（Ο大於（)時，則能量管理控制系統（3〇)(EMS)控 制第二電壓調整電路之輸出值（，使其能適當調整系統輔助裝 置組件（20)(BOP)，達到燃料電池（10)陰極側的空氣（氧氣)輸入 量減縮至適g值，若（/_)大於〇而（γ)小於（^)時，則燃料電 池系統進入全載5周整模式（333)。本輕載調整模式流程圖可參閱 第七圖。 系統開機啟動後就在上述四種操作模式之間變遷轉換，其變 遷轉換圖可參閱第人圖，若系統欲關機則將關機之切換裝置執行 關閉動作即可。 前文係針對本發明之技術特徵進行具體之說明實例； 惟’熟悉此項技術之人士當可在不脫離本發明之精神與原 則I對本發料行變更與修改，而料變更與修改，皆應 涵蓋於如下申請專利範圍所界定之範疇中。 【圖式簡單說明】 第圖.係本發明之系統架構圖。 201212476 第二圖：係本發明之能量管理控制系統單元圖。 •第三圖：係本發明之系統輔助裝置組件之系、统架構圖。 - 第四圖：係本發明之啟動調整模式流程圖。 第五圖：係本發明之充電調整模式流程圖。 第六圖：係本發明之全載調整模式流程圖。 第七圖：係本發明之輕載調整模式流程圖。 第八圖：係本發明之操作模式變遷轉換圖。 φ 【主要元件符號說明】 (〇燃料電池之工作電壓 (〇第一電壓調整電路之輸出電屋 (W第二電壓調整電路之輸出電壓 (t)燃料電池之電壓設定值 (〇輔助電池之電壓放電目標設定值 (U輔助電池之充電電壓目標設定值 φ ( 4c)燃料電池之工作電流 (/_)負載工作電流 (/min)負載最小工作電流 (/sys)燃料電池之電流設定值 (〇輔助電池經第一電壓調整雷 正冤路所輸出之電流 (swi)燃料電池供電至第 (SW2)輔助電池供電至第 二電壓調整電路之開關 二電屢調整電路之開關 (10)燃料電池 201212476 (20) 系統輔助裝置組件 (21) 燃料供應運轉之組件 (22) 空氣供應運轉之組件 (23) 散熱系統 (24) 陰極與陽極輸入輸出組件 (25) 燃料儲存系統 (30) 能量管理控制系統 (31) 中央處理器單元 (3 11)計時器 (3 12)輸入/輸出控制單元 (3 13)記憶體 (314)邏輯運算單元 (32) 偵測單元 (321)燃料電池的操作溫度、環境溫度及輸出電壓與電流值 (3 22)系統負載的工作電壓與電流 (323)輔助電池的工作電壓與電流 (3 24)第一與第二電壓調整電路的輸出電壓與電流 (33) 控制策略方法 (331) 啟動調整模式 (332) 充電調整模式 (333) 全載調整模式 (334) 輕載調整模式 12 201212476 整電路 整電路 (40)第一電壓 • (50)第二電壓 . (60)輔助電池 (70)系統負載The control method divides the operation of the fuel cell system into several modes and determines the fuel power according to the voltage, current and temperature signals in the fuel cell system: the operating mode of the system and the operating mode of the cathode air inlet of the fuel cell. This is the main purpose of the invention. To achieve the above object, the present invention also provides a method of controlling a fuel cell system that can be implemented. With regard to the techniques, means and functions of the present invention, a preferred embodiment will be described in detail with reference to the drawings, and it is believed that the purpose, the structure and the features of the present invention can be obtained from an in-depth and specific understanding. . [Complex Mode] The present invention provides an output power control method for designing a fuel cell by an auxiliary device and an auxiliary battery system. Referring to the first embodiment of the system architecture diagram of the present invention, the fuel cell system of the present invention comprises at least: a fuel cell (丨〇), a System of Plant (BOP) (20), a Energy Management System (EMS) (30), ~ first voltage 201212476 adjustment circuit (40), a second voltage adjustment circuit (50), an auxiliary battery (60) (such as a wrong acid battery, clock Iron battery, super capacitor, etc. can be used as a two-under-storage unit) and one system load (70) in parallel with the auxiliary battery (60). Please refer to the first and second figures for the energy management control system unit. The energy management control system (EMS) (30) includes a central processing unit (CPU) (31), a detection unit (32), and a control strategy method (33). The central processing unit (CPUK31) includes at least a timer (311), a memory (313), a logical operation unit (314), and an input/round control unit (I/〇p〇rt Control Unit) (31 2). . The detection unit (32) can detect: (a) the operating temperature of the fuel cell, the ambient temperature, and the output voltage and current values (321). (b) Operating voltage and current of the system load (3 2 2 ). (c) Auxiliary battery operating voltage and current (323). (d) The output voltage and current of the first and second voltage regulating circuits (324). The detection data is provided to the central processing unit (31) of the system for output control judgment, and the control strategy method (3 3) divides the operation control strategy of the fuel cell system into several modes. In addition, the first voltage adjustment circuit (4 〇) in the fuel cell system adjusts the output voltage of the fuel cell (1〇) to the voltage that can be used by the auxiliary battery (6〇) and the system load (7〇); The second voltage adjusting circuit (50) is configured to supply the system auxiliary device component (2〇) (B〇p) after the power voltage of the auxiliary battery (60) is changed to the 201212476 by the second voltage adjusting circuit (5〇). Operation • The first voltage adjustment circuit (40) and the first - Xingdi-voltage adjustment circuit (50) - functions can include: (a) boost function (b) buck function (c) voltage regulation function (d) Control output current φ (e) Power control function (f) Output circuit switching (〇n/〇ff) Referring to the second and third figures, at least the unit is included in the system auxiliary device component (20) (B0P) as follows: (a) The fuel supply is operated, and the component (21), such as a fuel pump (Fuei Feed Pump) and other related components. (b) Air supply operation components (22), such as Air Pump I and Circulation Pump.政,, system (23), such as fan (Fan) and condenser (Condenser), etc. (d) cathode and anode input and output components (24).)·'": material storage system (25), such as hydrogen cylinder , fuel tanks and fuel mixing tanks (Mixing Tank). In the control strategy method (33), the control method divides the operation of the fuel cell system into four groups; (: Xuan 4, , even type includes start adjustment mode (331), charge adjustment mode 201212476 (332), full load adjustment Mode (333) and light load adjustment mode (334), the following is in line with its workflow (see flowcharts 4 to 7). The four modes are described as follows: (4) Start adjustment mode (331): The initial action is to start the switching device of the fuel cell system to start, so that the system is in the fully open state, SW1 is set to 〇ff and SW2 is set to 〇n, and it is first determined whether the load is in operation or not when starting, when the load is working When the current (/|Md) is less than the minimum operating current of the load, it enters the charging adjustment mode (332) (the fuel cell (1〇) charges the auxiliary battery (6〇)); when the load operates (〇 is greater than the fuel cell (10) The working current (/rc) and the load operating current is greater than the current output by the first voltage regulating circuit (when it enters the full load adjustment mode (333); when the load operating current (仏j is less than the fuel cell (1〇)) Current (/fc) and the current output by the first voltage adjustment circuit (〇, and the output value of the first voltage adjustment circuit (〇 is greater than the voltage discharge target setting value of the auxiliary battery (6〇) (〇' enters the light load adjustment mode) (334) The flowchart of the startup adjustment mode can be referred to the fourth diagram. (b) Charging adjustment mode (332): After entering the charging adjustment mode (332), SW1 is changed to On and SW2 is Off' and the energy management control system ( 3〇) (EMs) continuous measurement (D, (K), (/FC) and (G), so that the auxiliary battery (60) gets the energy of the fuel cell (10) (the original auxiliary battery (60) power is not saturated State); when (heart) is less than the current setting value of the fuel cell (10) (/sys), and (〇 is greater than the charging voltage target setting value (L, in) of the auxiliary battery (6〇), the auxiliary battery is declared (60) ) Charging is completed; if any of the above conditions are not met, then the fuel cell (1 〇) is continuing to charge the auxiliary battery (6 〇) 201212476 first, if (/, Md) is greater than (/min) then the fuel cell ( 1 〇) enter full load adjustment mode (333); if Uead) is less than (/_), and (〇 is less than u or (/FC) is less than u >s), then the energy management control system (3) (EMS) controls the output value of the second voltage regulating circuit (Μ, so that it can properly adjust the system auxiliary device component (2〇) (Β〇ρ) to reach the fuel The air (oxygen) input on the cathode side of the battery (10) is reduced to an appropriate value, thereby appropriately reducing the charge amount of the fuel cell (60) to the auxiliary battery (60); if (J_) is less than (kn)' (K ) is greater than (rsetin) and (/rc) is greater than (/s, s) and the fuel cell system enters the light load adjustment mode (334). Refer to the fifth figure for the flow chart of this charging adjustment mode. (c) Full-load 5-week full mode (333): In this mode, SW1 is Off, sW2 is 〇n, and the fuel cell (1〇) supplies all the power generated by it to the load. The part is provided by the auxiliary battery (60), at which time the energy management control system (30) (EMS) controls the output value of the second voltage regulating circuit (〇m to the maximum value so that the 3-week system auxiliary device component (2 〇) (B 〇P ), the air (oxygen) input to the cathode side of the fuel cell (1 〇) is increased to the maximum value; in this mode, the energy management control system (30) (EMS) is continuously measured (〇, (8) , (/.,) and (); if (〇 does not equal (〇, or (〇 is equal to (〇(而) (〇 is less than (^) then the energy management control system (30) (EMS) controls the first voltage adjustment circuit The output value is adjusted to an appropriate value to output to the load together with the output (Fi) of the fuel cell (1〇); if (〇 is equal to (G), (〇 is greater than (/min) and (〇 is greater than (D) Then the system enters the charging adjustment mode (332) (the fuel cell (1 〇) charges the auxiliary battery (6〇) if (β) is dedicated to (G), ( / (10), If it is greater than (/_) and (〇 is less than (rsys), then the fuel cell system maintains the full load adjustment mode (333). This full load adjustment mode flow chart can refer to the sixth 201212476 diagram. (d) Light load adjustment mode ( 334): In this mode, SW1 is 〇n, and SW2 is Of f. Because the load uses less power, the fuel cell (10) can be operated by the system auxiliary device component (20) (BOP) and the lower load. Use; at this time, the energy management system (30) (EMS) continues to operate, its power is provided by the auxiliary battery (6〇), and continuously measures uMd), w, (6) and (8); if (/|. /min) The system enters the charging adjustment mode (332) (the fuel cell (1〇) charges the auxiliary battery (6〇)); if (/^) is greater than (D and (Ο is greater than (), then the energy management control system (3〇) (EMS) controls the output value of the second voltage adjustment circuit (so that it can properly adjust the system auxiliary device component (20) (BOP) to reduce the air (oxygen) input on the cathode side of the fuel cell (10) Appropriate g value, if (/_) is greater than 〇 and (γ) is less than (^), then the fuel cell system enters full-load 5-week full mode (33 3) The flow chart of this light load adjustment mode can be referred to the seventh figure. After the system is started up, it will change between the above four operation modes. The transition diagram can be referred to the first figure. If the system wants to shut down, it will be shut down. The switching device performs the closing action. The foregoing is a specific description of the technical features of the present invention; however, those skilled in the art can change and modify the present invention without departing from the spirit and principle of the present invention. Changes and modifications to the materials shall be covered by the scope of the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS Fig. is a system architecture diagram of the present invention. 201212476 Second figure: is a unit diagram of the energy management control system of the present invention. • Third Diagram: A diagram showing the system architecture of the system auxiliary device components of the present invention. - Fourth figure: is a flow chart of the startup adjustment mode of the present invention. Fig. 5 is a flow chart showing the charging adjustment mode of the present invention. Figure 6 is a flow chart of the full load adjustment mode of the present invention. Figure 7 is a flow chart of the light load adjustment mode of the present invention. Figure 8 is a transition diagram of the operation mode transition of the present invention. Φ [Description of main component symbols] (〇The operating voltage of the fuel cell (〇 The output of the first voltage adjustment circuit (W) The output voltage of the second voltage adjustment circuit (t) The voltage setting of the fuel cell (〇 The voltage of the auxiliary battery Discharge target setting value (U auxiliary battery charging voltage target setting value φ ( 4c) Fuel cell operating current (/_) load operating current (/min) load minimum operating current (/sys) fuel cell current setting value (〇 The auxiliary battery is regulated by the first voltage to adjust the current output by the lightning positive circuit (swi), the fuel cell is supplied to the (SW2) auxiliary battery, and the second voltage regulating circuit is switched to the second electrical adjustment circuit switch (10) fuel cell 201212476 (20) System Auxiliary Components (21) Fuel Supply Operation Components (22) Air Supply Operation Components (23) Heat Dissipation System (24) Cathode and Anode Input and Output Components (25) Fuel Storage System (30) Energy Management Control System (31) Central processing unit (3 11) timer (3 12) input/output control unit (3 13) memory (314) logic operation unit (32) detection unit (321) operating temperature of the fuel cell, Ambient temperature and output voltage and current value (3 22) system load operating voltage and current (323) auxiliary battery operating voltage and current (3 24) first and second voltage regulating circuit output voltage and current (33) control Strategy Method (331) Start Adjustment Mode (332) Charge Adjustment Mode (333) Full Load Adjustment Mode (334) Light Load Adjustment Mode 12 201212476 Full Circuit Complete Circuit (40) First Voltage • (50) Second Voltage. (60 Auxiliary battery (70) system load