This paper proposes the application strategy of the intelligent technology in electronic engineering automation control. Artificial intelligence technology is about to realize the calculation of perception, reasoning ...This paper proposes the application strategy of the intelligent technology in electronic engineering automation control. Artificial intelligence technology is about to realize the calculation of perception, reasoning and behavior study of it is different from most of the psychology, because it is more of an emphasis on the calculation, the artificial intelligence is also different from most of the computer science as because it is more of an emphasis on the perception, reasoning, and behavior, and future applications of artificial intelligence is beyond imagination. Regarding the multi-agent system target identification data fusion, the goal type is a proposition, each intelligent body gives through processing regarding the goal type judgment result is evidence, we discussed in detail of the essential applications on the item that will promote the further development.展开更多
In this paper, Takagi-Sugeno(T-S) fuzzy control is proposed for stabilizing the output beam of accelerators. To model the nonlinear system, we proposed a hybrid optimization algorithm based on quantum-inspired differe...In this paper, Takagi-Sugeno(T-S) fuzzy control is proposed for stabilizing the output beam of accelerators. To model the nonlinear system, we proposed a hybrid optimization algorithm based on quantum-inspired differential evolution and genetic algorithm. Based on the T-S model identified, the corresponding statefeedback fuzzy controller is designed. The method is applied to the La B6 electron gun system in the industrial radiation accelerator and the simulation results show its effectiveness.展开更多
The control parameters of electronic governor that influence the transient characteristics of the engine are analyzed.An electric control unit was developed and the control parameters were calibrated on the test bench...The control parameters of electronic governor that influence the transient characteristics of the engine are analyzed.An electric control unit was developed and the control parameters were calibrated on the test bench.The initial value of integral term and the maximum output of rack position proportion,integration and derivation（PID）controller affect the step and triangle response drastically.Through correcting the proportional term and integral term of speed PID controller,the dynamic speed drop and speed overshoot are improved.A property control strategy for cold starting an engine is set,and the calibration process indicates that the fuel injected into the cylinder per cycle and the desired speed ascend rate drastically affect the start transient process.展开更多
柔性交流输电系统(flexible alternative current transmission systems,FACTS)装置如混合式统一潮流控制器(hybrid unified power flow controller,HUPFC)可调节线路潮流,有效提升输电网络的传输容量。为解决传统HUPFC中使用机械式有...柔性交流输电系统(flexible alternative current transmission systems,FACTS)装置如混合式统一潮流控制器(hybrid unified power flow controller,HUPFC)可调节线路潮流,有效提升输电网络的传输容量。为解决传统HUPFC中使用机械式有载分接开关调压带来的诸多问题,文中提出基于全电力电子有载分接开关的快速电磁式HUPFC。首先,针对其工作特性进行研究,并提出抑制开关切换过程中产生过压的方法。然后,根据不对称级电压Sen变压器的工作点合成方式存在自由度,实现一种开关切换次数最少的抽头选择策略,并给出从潮流指令改变到开关切换调压的详细步骤。最后,在Simulink中搭建220 kV双回线路仿真模型,对比快速电磁式HUPFC与传统HUPFC的潮流调节过程及结果。结果表明,全电力电子开关在响应速度和降低调节过程中的功率波动等方面更具优势,验证了快速电磁式HUPFC的可行性。展开更多
In view of the operating characteristics for voltage sags of AC side of the power electronic transformer(PET),a low-voltage ride through(LVRT)strategy adapted to bidirectional power exchange of PET is proposed for the...In view of the operating characteristics for voltage sags of AC side of the power electronic transformer(PET),a low-voltage ride through(LVRT)strategy adapted to bidirectional power exchange of PET is proposed for the purposes of maintaining the system stability,assisting the system voltage recovery and protecting PET safety.During the asymmetric voltage sag,the negative sequence current of PET is eliminated to ensure the symmetry of the injected current.According to the degree of positive sequence voltage sag,the reactive current injection is provided to assist in voltage recovery.According to the PET active power condition before the voltage sag,the level and direction of which are maintained as far as possible without exceeding the limit,for which the disturbance to the AC and DC grids is reduced.Finally,the effectiveness of the proposed LVRT strategy is verified by simulation model.展开更多
文摘This paper proposes the application strategy of the intelligent technology in electronic engineering automation control. Artificial intelligence technology is about to realize the calculation of perception, reasoning and behavior study of it is different from most of the psychology, because it is more of an emphasis on the calculation, the artificial intelligence is also different from most of the computer science as because it is more of an emphasis on the perception, reasoning, and behavior, and future applications of artificial intelligence is beyond imagination. Regarding the multi-agent system target identification data fusion, the goal type is a proposition, each intelligent body gives through processing regarding the goal type judgment result is evidence, we discussed in detail of the essential applications on the item that will promote the further development.
基金Supported by the Knowledge Innovation Program of Chinese Academy of Sciences(No.Y35501A011)
文摘In this paper, Takagi-Sugeno(T-S) fuzzy control is proposed for stabilizing the output beam of accelerators. To model the nonlinear system, we proposed a hybrid optimization algorithm based on quantum-inspired differential evolution and genetic algorithm. Based on the T-S model identified, the corresponding statefeedback fuzzy controller is designed. The method is applied to the La B6 electron gun system in the industrial radiation accelerator and the simulation results show its effectiveness.
文摘The control parameters of electronic governor that influence the transient characteristics of the engine are analyzed.An electric control unit was developed and the control parameters were calibrated on the test bench.The initial value of integral term and the maximum output of rack position proportion,integration and derivation（PID）controller affect the step and triangle response drastically.Through correcting the proportional term and integral term of speed PID controller,the dynamic speed drop and speed overshoot are improved.A property control strategy for cold starting an engine is set,and the calibration process indicates that the fuel injected into the cylinder per cycle and the desired speed ascend rate drastically affect the start transient process.
文摘柔性交流输电系统(flexible alternative current transmission systems,FACTS)装置如混合式统一潮流控制器(hybrid unified power flow controller,HUPFC)可调节线路潮流,有效提升输电网络的传输容量。为解决传统HUPFC中使用机械式有载分接开关调压带来的诸多问题,文中提出基于全电力电子有载分接开关的快速电磁式HUPFC。首先,针对其工作特性进行研究,并提出抑制开关切换过程中产生过压的方法。然后,根据不对称级电压Sen变压器的工作点合成方式存在自由度,实现一种开关切换次数最少的抽头选择策略,并给出从潮流指令改变到开关切换调压的详细步骤。最后,在Simulink中搭建220 kV双回线路仿真模型,对比快速电磁式HUPFC与传统HUPFC的潮流调节过程及结果。结果表明,全电力电子开关在响应速度和降低调节过程中的功率波动等方面更具优势,验证了快速电磁式HUPFC的可行性。
基金supported by the Science and Technology Program of State Grid Jiangsu Electric Power Co.Ltd.(granted no.5210EF18001D)granted contract-Key technology research of relay protection for the AC-DC hybrid grid with various distributed energy resources.
文摘In view of the operating characteristics for voltage sags of AC side of the power electronic transformer(PET),a low-voltage ride through(LVRT)strategy adapted to bidirectional power exchange of PET is proposed for the purposes of maintaining the system stability,assisting the system voltage recovery and protecting PET safety.During the asymmetric voltage sag,the negative sequence current of PET is eliminated to ensure the symmetry of the injected current.According to the degree of positive sequence voltage sag,the reactive current injection is provided to assist in voltage recovery.According to the PET active power condition before the voltage sag,the level and direction of which are maintained as far as possible without exceeding the limit,for which the disturbance to the AC and DC grids is reduced.Finally,the effectiveness of the proposed LVRT strategy is verified by simulation model.
