A power flow tracing based load curtailment technique

A reasonable and efficient load curtailment method enables to restore the system quickly as well as reduce the economic losses both for the power providers and customers when the electrical power system is under contingency. This paper proposes a power flow tracing based load curtailment technique. When the outage occurs, the proposed method determines the load curtailment of each bus according to the power flow tracing results. The technical requirements can be satisfied by just curtailing these loads. It takes the distribution in power transfers between units, transmission lines and loads into account. An extended incidence matrix based power flow tracing scheme is developed for efficient load curtailment. Results in the load curtailment and reliability analysis of the RBTS system demonstrate the correctness of the proposed method.