交流电气化铁路相邻变电所间再生制动能量复合利用技术

Compound Utilization Technology of Regenerative Braking Energy Between Adjacent Substations of AC Electrified Railway

为进一步提高再生制动能量利用率,助力铁路节能降耗和节支增效,研究能量转移与存储结合的相邻变电所间再生制动能量复合利用技术。阐述系统构成及其工作原理,基于各端口间的能量供需关系,以优先直接转移和最大化综合利用为目标,制定相应能量管理策略。在此基础上将系统运行工况划分为4种模式并分析典型工况的功率潮流,然后提出主从控制架构和分层控制策略。通过现场实测数据仿真分析,验证能量管理及控制策略的正确性和有效性。结果表明,提出的能量管理及控制策略能够有效协同控制再生制动能量按需转移、存储和释放,实现高效复合利用。

In order to further enhance the utilization rate of regenerative braking energy,and contribute to railway energy saving,consumption reduction,cost saving and efficiency improvement,a research on the compound utilization technology of regenerative braking energy between adjacent substations that combines energy transfer and storage is carried out,where the system composition and its working principle are elaborated.Based on the energy supply-demand relationship between ports,the corresponding energy management strategies are developed with the objectives of prioritized direct transfer and maximized comprehensive utilization.On this basis,the system operating conditions are divided into 4 modes and the power flow under typical operating conditions is analyzed.Then,the master-slave control architecture and hierarchical control strategy are put forward,and the correctness and effectiveness of the energy management and control strategies are verified through simulation analysis of field measured data.The results show that the proposed energy management and control strategy can control the transfer,storage and release of regenerative braking energy on demand in an effective and synergistic manner,realizing efficient compound utilization.