First, the paper analyzes the advantages and disadvantages of all kinds of reactive power compensation technology, and then proposes a principle and integrated control strategy of the composite operation of TSC and SV...First, the paper analyzes the advantages and disadvantages of all kinds of reactive power compensation technology, and then proposes a principle and integrated control strategy of the composite operation of TSC and SVG, also the paper designs and develops the main controller of Network based composite power quality regulation device, based on RTDS, the real-time digital simulation model of The Device is established, and finally the prototype of the device is developed with the function of filter and split-phase compensation. The main controller determines the cooperative operation of both TSC and SVG, and the switching strategy of TSC. The simulation result in RTDS can verify the precision of the measure system and the validity of the control logic, the prototype has finished the type test according to the national standard.展开更多
铁路功率调节器(Railway Power Conditioner,RPC)既能作为光储系统接入牵引供电系统的端口,也能够有效解决柔性牵引供电系统中谐波及无功等电能质量问题。文章提出了一种考虑动态特性的RPC接入型柔性高速铁路牵引供电系统无功补偿及谐...铁路功率调节器(Railway Power Conditioner,RPC)既能作为光储系统接入牵引供电系统的端口,也能够有效解决柔性牵引供电系统中谐波及无功等电能质量问题。文章提出了一种考虑动态特性的RPC接入型柔性高速铁路牵引供电系统无功补偿及谐波治理方法。分析了牵引供电系统负序电流成因及RPC的基本工作原理,搭建了基于RPC接入的含光储柔性牵引供电系统,并开展了仿真分析。结果表明,所提出的考虑动态特性的RPC接入型柔性高速铁路牵引供电系统无功补偿及谐波治理方法,能够在电压、电流、功率因数、不平衡电流方面显著改善牵引供电系统的电能质量问题,提升系统的动态特性。展开更多
在电力行业追求高效、节能的大背景下,低压配电网降损中的无功补偿技术应运而生的。随着电力需求的不断增长,低压配电网的损耗问题日益突出,为提升功率因数、降低线损并改善电网的电压质量,采用静止无功发生器(Static Var Generator,SVG...在电力行业追求高效、节能的大背景下,低压配电网降损中的无功补偿技术应运而生的。随着电力需求的不断增长,低压配电网的损耗问题日益突出,为提升功率因数、降低线损并改善电网的电压质量,采用静止无功发生器(Static Var Generator,SVG)和晶闸管投切电容器(Thyristor Switch Capacitor,TSC)等设备的混合补偿方案,并结合MATLAB仿真模型进行验证。SVG+TSC混合补偿方案进一步提升了电网性能,将电压波动范围降低到±1.5%,线损率降低到2.0%,并减少了350 kvar的无功功率。实验数据充分证明了无功补偿技术在优化电力系统运行、降低能耗方面的显著效果,为企业和区域发展带来了更大的经济效益。展开更多
文摘First, the paper analyzes the advantages and disadvantages of all kinds of reactive power compensation technology, and then proposes a principle and integrated control strategy of the composite operation of TSC and SVG, also the paper designs and develops the main controller of Network based composite power quality regulation device, based on RTDS, the real-time digital simulation model of The Device is established, and finally the prototype of the device is developed with the function of filter and split-phase compensation. The main controller determines the cooperative operation of both TSC and SVG, and the switching strategy of TSC. The simulation result in RTDS can verify the precision of the measure system and the validity of the control logic, the prototype has finished the type test according to the national standard.
文摘铁路功率调节器(Railway Power Conditioner,RPC)既能作为光储系统接入牵引供电系统的端口,也能够有效解决柔性牵引供电系统中谐波及无功等电能质量问题。文章提出了一种考虑动态特性的RPC接入型柔性高速铁路牵引供电系统无功补偿及谐波治理方法。分析了牵引供电系统负序电流成因及RPC的基本工作原理,搭建了基于RPC接入的含光储柔性牵引供电系统,并开展了仿真分析。结果表明,所提出的考虑动态特性的RPC接入型柔性高速铁路牵引供电系统无功补偿及谐波治理方法,能够在电压、电流、功率因数、不平衡电流方面显著改善牵引供电系统的电能质量问题,提升系统的动态特性。