Controlling apparatus of electric power system and control method of electric power system


Application Number: 00108304
Application Date: 2000.03.09
Publication Number: 1267939
Publication Date: 2000.09.27
Priority Information: 1999/3/9 JP 062301/1999
International: H02J3/00;H02J3/12;H02J3/18
Applicant(s) Name: Kansai Electric Power Co., Ltd.
Address:
Inventor(s) Name: Tanimoto Masahiko;Izui Yoshio;Owada Seiki
Patent Agency Code: 11038
Patent Agent: wang maohua
Abstract A desired value of a reactive power flow (Q*Mji) between a to-be-controlled power system and an adjoining power system is determined according to measured values of the reactive power flow (Qji) and an effective power flow (Pji) and desired voltage values of the to-be-controlled power system (Vio) and the adjoining power system (Vjo). Thereafter, a required value of a reactive power (QARi) of the to-be-controlled power system is calculated according to the desired value (Q*Mji) of the reactive power flow, the measured values of the reactive power flow and the effective power flow, and the desired voltage value (Vio) and a measured voltage value in the to-be-controlled power system (Vi). Thereafter, a control apparatus having an electric capacity near to the required value of the reactive power is selected from a plurality of control apparatuses arranged in the to-be-controlled power system to make the selected control apparatus adjust a voltage of the to-be-controlled power system.