定步长仿真算法只能在整仿真步长时刻改变开关状态,这将导致开关动作延时并造成电压电流波形出现非特征谐波。提出了一种适用于实时数字仿真的开关脉冲触发补偿算法,该算法通过在开关动作时在开关两端节点间并联一个补偿电流源,解决了...定步长仿真算法只能在整仿真步长时刻改变开关状态,这将导致开关动作延时并造成电压电流波形出现非特征谐波。提出了一种适用于实时数字仿真的开关脉冲触发补偿算法,该算法通过在开关动作时在开关两端节点间并联一个补偿电流源,解决了定步长仿真中开关动作时刻与仿真步长不一致的问题。最后,将开关脉冲触发补偿算法应用于单相半波可控整流电路、可控串补(thyristor controlled seriescompensator,TCSC)和静止同步补偿器(static synchronouscompensator,STATCOM)的仿真结果表明,算法是有效、可行的,提高了电力系统全数字实时仿真装置(advanceddigital power system simulator,ADPSS)对电力电子电路模拟的准确性。展开更多
Based on real-time digital simulations(RTDS),a laboratory environment similar to the real-time operation situation of the Three Gorges Hydropower Station is established.Then,the causes for the power fluctuation of the...Based on real-time digital simulations(RTDS),a laboratory environment similar to the real-time operation situation of the Three Gorges Hydropower Station is established.Then,the causes for the power fluctuation of the second generator by errors in the rotor rotating speed calculation are found,and the tuning method of the speed related parameters are given.The damping and reverse tuning characteristics of power system stabilizers(PSSs)in the digital automatic voltage regulator(AVR)are compared and investigated in the frequency range of 0.18-1.1 Hz.The efficiency of the proposed tuning method for ensuring power system stability is verified by RTDS.Finally,field tests show the validity of the laboratory test results.展开更多
文摘定步长仿真算法只能在整仿真步长时刻改变开关状态,这将导致开关动作延时并造成电压电流波形出现非特征谐波。提出了一种适用于实时数字仿真的开关脉冲触发补偿算法,该算法通过在开关动作时在开关两端节点间并联一个补偿电流源,解决了定步长仿真中开关动作时刻与仿真步长不一致的问题。最后,将开关脉冲触发补偿算法应用于单相半波可控整流电路、可控串补(thyristor controlled seriescompensator,TCSC)和静止同步补偿器(static synchronouscompensator,STATCOM)的仿真结果表明,算法是有效、可行的,提高了电力系统全数字实时仿真装置(advanceddigital power system simulator,ADPSS)对电力电子电路模拟的准确性。
文摘Based on real-time digital simulations(RTDS),a laboratory environment similar to the real-time operation situation of the Three Gorges Hydropower Station is established.Then,the causes for the power fluctuation of the second generator by errors in the rotor rotating speed calculation are found,and the tuning method of the speed related parameters are given.The damping and reverse tuning characteristics of power system stabilizers(PSSs)in the digital automatic voltage regulator(AVR)are compared and investigated in the frequency range of 0.18-1.1 Hz.The efficiency of the proposed tuning method for ensuring power system stability is verified by RTDS.Finally,field tests show the validity of the laboratory test results.