含交直流混合配网综合能源系统的电动汽车分群调控策略

Cluster-based Control Strategies of Electric Vehicles for Integrated Energy System With AC-DC Hybrid Distribution Network

随着用户侧直流负荷尤其是电动汽车的不断增长,考虑交直流混合配网的电动汽车调控策略对综合能源系统应对复杂多样的用能需求和推广建设至关重要。首先,构建含交直流混合配网的综合能源系统框架,基于实际的电动汽车类型和行驶特性,结合系统结构和位置信息,提出电动汽车交直流调控分群准则;其次,建立上层电动汽车与含交直流混合配网综合能源系统的分群互动模型,并考虑电动汽车行驶满意度,建立下层含交直流混合配网综合能源系统的电动汽车分群调控模型;最后,基于天津北辰大张庄镇示范区构建了测试算例,通过算例分析对比不同场景下电动汽车调控策略,验证了电动汽车分群调控策略的有效性。含交直流混合配网综合能源系统的电动汽车分群调控策略,极大化地利用了电动汽车的互动能力,有效降低了系统运行成本。

As the DC load on the user side, especially electric vehicles, continues to increase, electric vehicle control strategies that consider AC-DC hybrid distribution networks are critical to the integrated energy system’s ability to respond to complex and diverse energy demands and to promote construction. First, an integrated energy system framework with AC-DC hybrid distribution network was constructed. An AC-DC cluster-based control criteria for electric vehicles was proposed based on the actual electric vehicle types and driving characteristics, combined with the system structure and location information. Secondly, an up-level cluster-based interaction model of electric vehicles and integrated energy systems with AC-DC hybrid distribution network was established. Thirdly, considering the driving satisfaction of electric vehicles, a down-level cluster-based control model of electric vehicle for integrated energy system with AC-DC hybrid distribution network was established. Finally, a test case was constructed based on the demonstration area of Dazhangzhuang Town, Beichen, Tianjin. The analysis and comparison of electric vehicle control strategies in different scenarios were conducted to verify the effectiveness of the electric vehicle control strategies. The cluster-based control strategies of electric vehicles for integrated energy system with AC-DC hybrid distribution network make the most of the interactive capabilities of electric vehicles and effectively reduces the operating cost of the system.