An Injection Methodology for Testing Master Stations' Fault-Processing Capability

Due to the lack of available tests and equipment, the ability of master stations to process faults in power distribution systems cannot be evaluated systematically or comprehensively during their commissioning. As a solution, this paper presents an injection methodology that consists of a research system and an evaluation technique. The same system is also employed for on-site tests. Standardized test networks and corresponding cases are integrated into the system, where a traversal fault-setting scheme can specify the location for short-circuit faults anywhere along the test network. The Tabu Search is adopted to optimize network reconfiguration for complex fault scenarios. Additionally, the system can validate the configuration and settings of peripheral equipment, including relays. More than one-hundred master stations have been tested and graded by the proposed methodology, leading to acceptance of the injection test.