The invention provides multi-module parallel operation balancing system for the rail-alternating traction bidirectional converter intelligent equipment. The stability of the direct current bus voltage is ensured through the arranged bidirectional converter operation balancing module, the ripple is small, and the harmonic pollution and reactive power consumption to a power grid are reduced; during regenerative braking of a train, the bidirectional converter circuit unit works in an inversion working condition, residual energy accumulated on a direct-current bus can be fed back to a high-voltage power grid, comprehensive configuration can be carried out on power factors, active power can be fed back to the high-voltage power grid, and reactive power support can be provided for the power grid when the power grid needs the reactive power support. Short-time recoverable faults can be accurately identified in the operation process of the rail transit traction bidirectional variable flow hierarchical control module, in the fault and recovery process, it is guaranteed that the system is not disconnected from the network, the power supply operation reliability of the rail transit system can be improved, and through artificial intelligence control and a self-learning algorithm, real-time adjustment and control parameters are more balanced, so that the performance of the device is optimal.
本发明提供了一种轨交牵引双向变流智能装备多模块并联运行的均衡系统,通过设置的双向变流运行均衡模块保证直流母线电压的稳定、纹波小,减小对电网的谐波污染和无功消耗;列车再生制动时双向变流器电路单元工作于逆变工况,可以将聚积到直流母线上的剩余能量回馈到高压电网,并可对功率因数进行综合性配置,不仅能向高压电网回馈有功功率,而且可以在电网需要时为电网提供无功支撑,通过轨交牵引双向变流分层控制模块运行过程中可准确辨识短时可恢复故障,且在故障及恢复过程中,保证系统不脱网,可提高轨道交通系统的供电运行可靠性,通过人工智能控制和自学习算法,实时调节控制参数更加的均衡使装置性能最优。
Multi-module parallel operation balancing system for rail-alternating traction bidirectional converter intelligent equipment
一种轨交牵引双向变流智能装备多模块并联运行的均衡系统
04.01.2022
Patent
Elektronische Ressource
Chinesisch
IPC: | G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / 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 |
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