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    • 3. 发明授权
    • Power system control apparatus and power system control method
    • 电力系统控制装置及电力系统控制方法
    • US07755333B2
    • 2010-07-13
    • US12149655
    • 2008-05-06
    • Satoshi YasudaHitoshi TeramotoMasatoshi TakedaMichihiro Tadokoro
    • Satoshi YasudaHitoshi TeramotoMasatoshi TakedaMichihiro Tadokoro
    • G05F1/70G05F3/00
    • H02J3/1821G05F1/70H02J3/1864Y02E40/12
    • A SVC control section detects a bus voltage from an instrument transformer, and adjusts reactive power generated by a SVC according to the detected bus voltage. A cooperative control section generates a control command for controlling the interconnection and parallel-off of a phase lead capacitor and a phase lag reactor on the basis of the amount of reactive power generated by the SVC and the bus voltage detected by the instrument transformer and a voltage sensor. A voltage comparator compares the bus voltage with a predetermined threshold voltage set to a voltage lower than a lower limit value of a steady state fluctuation range of the bus voltage and outputs the comparison result to a circuit breaker control section. When the bus voltage is lower than the threshold voltage, the circuit breaker control section locks the control command from the cooperative control section.
    • SVC控制部分检测仪表变压器的总线电压,根据检测到的总线电压调整SVC产生的无功功率。 合作控制部分根据由SVC产生的无功功率和由仪表变压器检测到的总线电压产生用于控制相位超前电容器和相位滞后电抗器的互连和并联的控制命令, 电压传感器 电压比较器将总线电压与设定为低于总线电压的稳态波动范围的下限值的电压设定的预定阈值电压进行比较,并将比较结果输出到断路器控制部。 当总线电压低于阈值电压时,断路器控制部分锁定来自协同控制部分的控制命令。