The synchronous virtual machine uses inverter power to imitate the performance of the conventional synchronous machine.It also has the same inertia,damping,frequency,voltage regulation,and other external performance a...The synchronous virtual machine uses inverter power to imitate the performance of the conventional synchronous machine.It also has the same inertia,damping,frequency,voltage regulation,and other external performance as the generator.It is the key technology to realize new energy grid connections’stable and reliable operation.This project studies a dynamic simulation model of an extensive new energy power system based on the virtual synchronous motor.A new energy storage method is proposed.The mathematical energy storage model is established by combining the fixed rotor model of a synchronous virtual machine with the charge-discharge power,state of charge,operation efficiency,dead zone,and inverter constraint.The rapid conversion of energy storage devices absorbs the excess instantaneous kinetic energy caused by interference.The branch transient of the critical cut set in the system can be confined to a limited area.Thus,the virtual synchronizer’s kinetic and potential energy can be efficiently converted into an instantaneous state.The simulation of power system analysis software package(PSASP)verifies the correctness of the theory and algorithm in this paper.This paper provides a theoretical basis for improving the transient stability of new energy-connected power grids.展开更多
Power grid simulation calculation iswidely used in fields such as power grid operation,planning,safety defense,and accident inversion,which is one of the fundamental support technologies for power grid operation.At pr...Power grid simulation calculation iswidely used in fields such as power grid operation,planning,safety defense,and accident inversion,which is one of the fundamental support technologies for power grid operation.At present,mainstream software for power grid simulation calculation used by domestic power grid enterprises include PSD Power Tools,Power System Analysis Software Package(PSASP),Advanced Digital Power System Simulator(ADPSS)and so on,which can provide various simulation calculation functions such as power flow calculation,transient stability calculation,short circuit current calculation,etc.But in the process of using these software,various calculation data adjustments still rely entirely on manual experience.This article introduces artificial intelligence technology into power grid simulation calculation and develops an intelligent power system analysis platform which can be used in the simulation for large power grids,achieving the combination of artificial intelligence technology and power grid simulation technology,which can provide technical support for the transformation of power grid simulation and analysis work mode.展开更多
文摘The synchronous virtual machine uses inverter power to imitate the performance of the conventional synchronous machine.It also has the same inertia,damping,frequency,voltage regulation,and other external performance as the generator.It is the key technology to realize new energy grid connections’stable and reliable operation.This project studies a dynamic simulation model of an extensive new energy power system based on the virtual synchronous motor.A new energy storage method is proposed.The mathematical energy storage model is established by combining the fixed rotor model of a synchronous virtual machine with the charge-discharge power,state of charge,operation efficiency,dead zone,and inverter constraint.The rapid conversion of energy storage devices absorbs the excess instantaneous kinetic energy caused by interference.The branch transient of the critical cut set in the system can be confined to a limited area.Thus,the virtual synchronizer’s kinetic and potential energy can be efficiently converted into an instantaneous state.The simulation of power system analysis software package(PSASP)verifies the correctness of the theory and algorithm in this paper.This paper provides a theoretical basis for improving the transient stability of new energy-connected power grids.
基金supported by the State Grid Corporation of China‘s project:Research on artificial intelligence analysis technology of available transmission capacity(ATC)of key section under multiple power grid operation modes(5100-202255020A-1-1-ZN).
文摘Power grid simulation calculation iswidely used in fields such as power grid operation,planning,safety defense,and accident inversion,which is one of the fundamental support technologies for power grid operation.At present,mainstream software for power grid simulation calculation used by domestic power grid enterprises include PSD Power Tools,Power System Analysis Software Package(PSASP),Advanced Digital Power System Simulator(ADPSS)and so on,which can provide various simulation calculation functions such as power flow calculation,transient stability calculation,short circuit current calculation,etc.But in the process of using these software,various calculation data adjustments still rely entirely on manual experience.This article introduces artificial intelligence technology into power grid simulation calculation and develops an intelligent power system analysis platform which can be used in the simulation for large power grids,achieving the combination of artificial intelligence technology and power grid simulation technology,which can provide technical support for the transformation of power grid simulation and analysis work mode.
