DOMAIN-BASED SAFETY EVALUATION METHOD FOR POWER DISTRIBUTION SYSTEM

摘要

A domain-based safety evaluation method for a power distribution system includes the following steps: ① acquiring a safe domain and a safe boundary of a power distribution system according to the capacity of the main transformer in the power distribution system and the contact relationship among the main transformers (101); ② acquiring the distance between a working point and the safe boundary (102); ③ judging whether the working point is within the safe domain of the power distribution system according to the working point and the safe boundary (103), if yes, then performing step ④; and if no, then performing step ⑤; ④ acquiring the load vacancy or margin Li of a contact unit and ending the flow (104); and ⑤ adjusting the load of the main transformer until the working point returns back to the safe domain of the power distribution system, and performing step ④ (105). The method reduces the calculation amount, improves running speed, and can meet the requirements of real-time online running.