Simulation system design of distribution network based on similarity principle

A simulation system of distribution network design and development based on similarity principle is introduced. This simulation system includes primary simulation system and secondary control system, the primary system simulates a 10kV neutral indirectly earth distribution system, which includes a bus, four feeders with different types and different length. System structure and parameter calculation principle are introduced. The secondary control system includes simulated circuit breaker control system and fault setting control system. Switching equipments can be controlled by local button or remote compute to change the system operating status and fault settings. The simulation system has been completed and operates well in power system dynamic simulation laboratory.