Performances coordination strategies of dynamic controlled inter-phase power controller (DCIPC)

The usual inter-phase power controller (IPC) is a static device, and has the unique properties of robust power flow control, fault currents limitation and decoupling of interconnected networks. Whereas there are many problems for IPC´s applications, such as overvoltage on the components of IPC, overflow of IPC´s terminal voltages, decentralization of control parameters for fulfilling various operation requests, and difficulty in coordinating various operation requests. This paper proposes a principle configuration of IPC with dynamic control properties, termed as dynamic controlled inter-phase power controller (DCIPC). Four control strategies of DCIPC are analyzed, which is based on global normal operation information, local normal operation information, local fault information, and for device going into and dropping out, respectively. Parameter-coordinating methods and schemes of control system are also analyzed based on the four control strategies. Case studies on test systems verify the feasibility of strategies and methods.