車載燃料電池發(fā)動(dòng)機(jī)交流阻抗測量系統(tǒng)設(shè)計(jì)及應(yīng)用*
2023年電子技術(shù)應(yīng)用第8期
王海平，趙興旺，李飛強(qiáng)
（北京億華通科技股份有限公司，北京 100192）
摘要： 為解決車載質(zhì)子交換膜燃料電池發(fā)動(dòng)機(jī)在-30℃低溫冷儲(chǔ)存及冷啟動(dòng)問題，提出了一種測量車載燃料電池發(fā)動(dòng)機(jī)單片交流阻抗的測量系統(tǒng)，單片電流電壓信號(hào)通過帶通濾波電路處理后，進(jìn)行快速傅里葉變換計(jì)算出單片阻抗；在采集阻抗時(shí)，通過另外一個(gè)控制核心采集單片電壓，實(shí)現(xiàn)了單片電壓及阻抗的同步雙采集。在系統(tǒng)關(guān)機(jī)策略中，將單片阻抗作為關(guān)機(jī)判據(jù)，在其達(dá)到低溫儲(chǔ)存及冷啟動(dòng)的閾值點(diǎn)后，系統(tǒng)停止吹掃完成關(guān)機(jī)。系統(tǒng)能夠在-30℃低溫儲(chǔ)存及冷啟動(dòng)，并最終在北京2022冬奧會(huì)實(shí)車批量應(yīng)用。
中圖分類號(hào)：TP29 文獻(xiàn)標(biāo)志碼：A DOI: 10.16157/j.issn.0258-7998.233706
中文引用格式： 王海平，趙興旺，李飛強(qiáng). 車載燃料電池發(fā)動(dòng)機(jī)交流阻抗測量系統(tǒng)設(shè)計(jì)及應(yīng)用[J]. 電子技術(shù)應(yīng)用，2023，49(8)：70-75.
英文引用格式： Wang Haiping，Zhao Xingwang，Li Feiqiang. Design and application of AC impedance measurement system for vehicle fuel cell engine[J]. Application of Electronic Technique，2023，49(8)：70-75.
中文引用格式： 王海平，趙興旺，李飛強(qiáng). 車載燃料電池發(fā)動(dòng)機(jī)交流阻抗測量系統(tǒng)設(shè)計(jì)及應(yīng)用[J]. 電子技術(shù)應(yīng)用，2023，49(8)：70-75.
英文引用格式： Wang Haiping，Zhao Xingwang，Li Feiqiang. Design and application of AC impedance measurement system for vehicle fuel cell engine[J]. Application of Electronic Technique，2023，49(8)：70-75.
Design and application of AC impedance measurement system for vehicle fuel cell engine
Wang Haiping，Zhao Xingwang，Li Feiqiang
(Beijing Sinohytec Co.，Ltd.，Beijing 100192， China)
Abstract： In order to solve the problem of low-temperature cold storage and cold start of vehicle-mounted proton exchange membrane fuel cell engine at -30°C, this paper proposes a measurement system for measuring the monolithic AC impedance of on-board fuel cell engine. The monolithic current and voltage signals are processed by a band-pass filter circuit, and the monolithic impedance is calculated by a fast Fourier transform. When collecting impedance, the monolithic voltage is collected through another control core, realizing simultaneous dual collection of monolithic voltage and impedance.In the system shutdown strategy, the monolithic impedance is used as the shutdown criterion, and after it reaches the threshold point of low temperature storage and cold start, the system stops purging and completes shutdown. The system can be stored at -30°C and cold started, and finally used in batch applications at the Beijing 2022 Olympic Winter Games.
Key words : fuel cell engine；AC impedance；cold start；bandpass filter；fast Fourier transform
0 引言
目前燃料電池交流阻抗測量主要應(yīng)用在實(shí)驗(yàn)室內(nèi)，商用電化學(xué)工作站常用來測量燃料電池內(nèi)阻。菊水電化學(xué)工作站KFM2150控制電子負(fù)載施加電流激勵(lì)信號(hào)給燃料電池，控制2151采集燃料電池單片電壓，電子負(fù)載和KFM2151聯(lián)合實(shí)現(xiàn)電壓和電流同步測量和阻抗計(jì)算。電化學(xué)工作站體積大，無法應(yīng)用在整車上。
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作者信息：
王海平，趙興旺，李飛強(qiáng)
（北京億華通科技股份有限公司，北京 100192）
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