The invention relates to a micro-grid system suitable for an expressway service area and an operation strategy of the micro-grid system. The system comprises a photovoltaic unit, a hydrogen energy unit, a wind power unit, a direct current bus, an AC/DC conversion unit, an alternating current bus and a power grid, and the expressway service area is provided with an inflation pile and a charging pile. The operation strategy comprises the steps of obtaining the generated power of the photovoltaic unit and the wind power unit and the electricity demand of the charging pile in the expressway service area; if it is judged that the photovoltaic unit and the wind power unit meet the electricity demands, executing a first sub-strategy that the redundant electricity is conveyed into the hydrogen energy unit to inflate the inflation pile or charge a fuel cell, and otherwise, executing a second sub-strategy that all energy sources are synthesized to charge the charging pile. Compared with the prior art, the micro-grid system and the operation strategy of the micro-grid system satisfy the power utilization and gas utilization requirements of the new energy automobiles in the expressway service area, the energy conversion of electricity to hydrogen and hydrogen to electricity can be achieved, the energy utilization efficiency is improved, and the environmental pollution and electric energy waste are reduced.
本发明涉及一种适用于高速公路服务区的微电网系统及其运行策略,系统包括光伏单元、氢能单元、风电单元、直流总线、AC/DC转换单元、交流总线和电网,所述高速公路服务区设有充气桩和充电桩;运行策略包括获取光伏单元和风电单元的发电功率以及高速公路服务区中充电桩的用电需求;判断光伏单元和风电单元满足用电需求,则执行将多余的电量输送到氢能单元中为充气桩充气或为燃料电池充电的第一子策略,否则执行综合所有能源为充电桩充电的第二子策略。与现有技术相比,本发明满足高速公路服务区内的新能源汽车用电、用气需求,能够实现电转氢及氢转电的能量转换,提高能源利用效率,减少环境污染和电能的浪费。
Micro-grid system suitable for expressway service area and operation strategy of micro-grid system
一种适用于高速公路服务区的微电网系统及其运行策略
2021-05-18
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen |
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