HUANG Zhiling, HUANG Xiaoming, CHEN Wei, et al. Simulation Study on Lu-Sheng HVDC Reactive Power Optimization Scheme[J]. High voltageapparatus, 2014, 50(6): 65-69.
HUANG Zhiling, HUANG Xiaoming, CHEN Wei, et al. Simulation Study on Lu-Sheng HVDC Reactive Power Optimization Scheme[J]. High voltageapparatus, 2014, 50(6): 65-69. DOI: 10.13296/j.1001-1609.hva.2014.06.011.
Lu-Sheng HVDC is a typical weak AC grid project. The ESCR of Shengsi grid is only 0.913. After each pole installed 30 Mvar synchronous compensator the SCR of Shengsi grid is 6.1. The behavior of Shengsi grid is strong system
the HVDC can running safety and stability. But as time goes on
the high failure rate of synchronous compensator have seriously affected on the Lu-Sheng HVDC safe and stable operation. When Shengsi grid in islanding mode and only one synchronous compensator operation
the ESCR only 2.81. In this case
need install one reactive power compensation equipment
in order to keep the reactive power and voltage stability. The paper study on different reactive power compensation scheme and detailed simulation study on the affect after installed SVC or SVG. The simulation results show that install SVG better than install SVC in improve the Shengsi grid voltage stability.