The invention discloses an optical storage and charging direct-current micro-grid coordination control method, and an equipment layer of a direct-current micro-grid comprises at least two energy storage bidirectional Buck-Boost direct-current converter interfaces, a photovoltaic unit Boost direct-current converter interface and an automobile charging Buck direct-current converter interface, and each interface converter is interconnected through a direct-current bus. Each unit controller adopts a novel control strategy provided by the invention, and then carries out control mode switching based on the DC bus voltage information, thereby improving the DC bus voltage stability performance of the optical storage and charging DC micro-grid, and optimizing the SOC balance index between the energy storage units and the load response characteristic of the charging unit at the same time. According to the method, the voltage stability performance of the direct-current bus of the optical storage and charging direct-current micro-grid is improved, and meanwhile, the SOC balance index between the energy storage units and the load response characteristic of the charging unit are effectively optimized.
本发明公开了一种光储充直流微网协调控制方法,其中的直流微网的设备层包括:至少两个储能双向Buck‑Boost直流变换器接口、一个光伏单元Boost直流变换器接口、一个汽车充电Buck直流变换器接口,各接口变换器采用直流母线进行互联,各单元控制器分别采用本发明提出的新型控制策略,然后基于直流母线电压信息进行控制模式切换,从而改善光储充直流微网的直流母线电压稳定性能,同时优化储能单元之间的SOC均衡指标以及充电单元的负荷响应特性。该方法改善光储充直流微网的直流母线电压稳定性能,同时有效优化储能单元之间的SOC均衡指标以及充电单元的负荷响应特性。
Coordinated control method for optical storage and charging direct-current micro-grid
一种光储充直流微网协调控制方法
2024-08-09
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 / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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