The invention provides an online fuel cell energy management method. The method comprises the following steps: S1, predicting an SoC lower bound value and an SoC upper bound value of a power cell at a moment k + s based on an SoC value of the power cell at a current moment k; s2, discretizing the feasible electric quantity intervals of all moments, obtaining discrete SoC state points of all moments in the feasible electric quantity intervals, and putting the discrete SoC state points into discrete electric quantity sequences of the corresponding moments; s3, calculating the transfer cost of each discrete SoC state point at the previous moment to each discrete SoC state point at the next moment and the corresponding fuel cell output power, and further calculating the total transfer cost of all transfer paths from the moment k + s to the moment k and the corresponding fuel cell output power sequence; and S4, outputting a fuel cell output power sequence corresponding to the minimum total transfer cost, and controlling the fuel cell to perform power output according to a power value at a corresponding moment in the fuel cell output power sequence so as to realize on-line management of the energy of the fuel cell.
本发明提供一种在线燃料电池能量管理方法,体包括如下步骤:S1、基于动力电池当前时刻k的SoC值预测动力电池在时刻k+s的SoC下界值及SoC上界值;S2、对所有时刻的可行电量区间进行离散,获取所有时刻在可行电量区间内的离散SoC状态点,并放入对应时刻的离散电量序列;S3、计算上一时刻的各个离散SoC状态点转移到下一时刻各个离散SoC状态点的转移成本及其对应的燃料电池输出功率,进而计算出从时刻k+s到时刻k所有转移路径的总转移成本及其对应燃料电池输出功率序列;S4、输出最小总转移成本对应的燃料电池输出功率序列,控制燃料电池以该燃料电池输出功率序列中对应时刻的功率值进行功率输出,实现燃料电池能量的在线管理。
Online fuel cell energy management method and system and automobile
一种在线燃料电池能量管理方法、系统及汽车
2022-11-01
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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