This paper investigates motion coupling disturbance（the so called surplus torque）in the hardware-in-the-loop（HIL）experiments.The＇＇velocity synchronization scheme＇＇was proposed by Jiao for an electro-hydraulic ...This paper investigates motion coupling disturbance（the so called surplus torque）in the hardware-in-the-loop（HIL）experiments.The＇＇velocity synchronization scheme＇＇was proposed by Jiao for an electro-hydraulic load simulator（EHLS）in 2004.In some situations,however,the scheme is limited in the implementation for certain reasons,as is the case when the actuator＇s valve signal is not available or it is seriously polluted by noise.To solve these problems,a＇＇dual-loop scheme＇＇is developed for EHLS.The dual-loop scheme is a combination of a torque loop and a position synchronization loop.The role of the position synchronization loop is to decouple the motion disturbance caused by the actuator system.To verify the feasibility and effectiveness of the proposed scheme,extensive simulations are performed using AMESim.Then,the performance of the developed method is validated by experiments.展开更多
用BPA(Bonneville Power Administration)程序对南方电网目前配置的失步解列系统的定值设置及协调配合进行研究,特别是研究了低压减载的影响以及判出失步后解列不同断面的效果。研究将BPA程序计算结果回放进实际失步解列装置以检验动作...用BPA(Bonneville Power Administration)程序对南方电网目前配置的失步解列系统的定值设置及协调配合进行研究,特别是研究了低压减载的影响以及判出失步后解列不同断面的效果。研究将BPA程序计算结果回放进实际失步解列装置以检验动作结果与分析是否相符,并建立了由南方电网交直流混合实时数字仿真(RTDS)模型、失步解列系统、功率放大器、直流控制保护装置组成的实时闭环试验系统,对研究结论进行了验证。一系列研究表明,在考虑系统中低压减载装置实际动作效果的情况下,为保证失步解列装置的正确动作,需对当前该装置的配置和整定值进行调整。展开更多
基金sponsored by the National Basic Research Program of China (No.2014CB046406)the Key Projects of the National Natural Science Foundation (No.51235002)
文摘This paper investigates motion coupling disturbance（the so called surplus torque）in the hardware-in-the-loop（HIL）experiments.The＇＇velocity synchronization scheme＇＇was proposed by Jiao for an electro-hydraulic load simulator（EHLS）in 2004.In some situations,however,the scheme is limited in the implementation for certain reasons,as is the case when the actuator＇s valve signal is not available or it is seriously polluted by noise.To solve these problems,a＇＇dual-loop scheme＇＇is developed for EHLS.The dual-loop scheme is a combination of a torque loop and a position synchronization loop.The role of the position synchronization loop is to decouple the motion disturbance caused by the actuator system.To verify the feasibility and effectiveness of the proposed scheme,extensive simulations are performed using AMESim.Then,the performance of the developed method is validated by experiments.
基金supported by Special Fund of the National Basic Research Program of China(No.2009CB219704)the National High Technology Research and Development Programof China(863 Program)(No.2007AA05Z241)+1 种基金National Natural Science Foundation of China(No.50977061)Natural Science Foundation of Tianjin City(No.08JCYBJC13500)
文摘用BPA(Bonneville Power Administration)程序对南方电网目前配置的失步解列系统的定值设置及协调配合进行研究,特别是研究了低压减载的影响以及判出失步后解列不同断面的效果。研究将BPA程序计算结果回放进实际失步解列装置以检验动作结果与分析是否相符,并建立了由南方电网交直流混合实时数字仿真(RTDS)模型、失步解列系统、功率放大器、直流控制保护装置组成的实时闭环试验系统,对研究结论进行了验证。一系列研究表明,在考虑系统中低压减载装置实际动作效果的情况下,为保证失步解列装置的正确动作,需对当前该装置的配置和整定值进行调整。
