The Co-simulation Extending for Wide-area Communication Networks in Power System

The wide-area communication network (WAN) has become fundamental support for wide-area control systems in power system. A co-simulation extending for WAN has been studied to provide the communication interfaces to and from OPNET. The co-simulation framework includes the demand side (the control systems based on WAN), co-simulation module (cosim), OPNET and its extended modules. The key technologies are studied, such as the external system module (esys) in OPNET, a virtual UDP application connecting esys to UDP layer, cosim, and the exchange mode between communication demand side and cosim. The implementation of prototype system is given. The simulation testing illustrates the effectiveness of the extending working. It will provide a reference for the simulation in other control systems with WAN in power system.