Voltage Sensitivity Analysis in Voltage Support of the China Southern Power Grid.pdf

2006 International Conference on Power System Technology 1 Voltage Sensitivity Analysis in Voltage Support of the China Southern Power Grid Qing Zhong Yao Zhang Jianshe Zhang Zhigang Wu performance and the assessment of system security margins. Abstract—Supply support in receiver system can improve the The whole point of power system interconnection is to obtain stability of the system, especial voltage stability. As the receiver an adequate and reliable electric power supply in the most system in the China Southern Power Grid (the CSG), Guangdong economical way by taking advantage of the interchange of Province’s load is 70% of the CSG. The voltage support should energy and the pooling of generating capacity. But this be applied to improve stability. In this paper, many operation schemes are simulated. Weak nodes are shown by the voltage requires that voltage be maintained in all parts of the network, sensitivity index which is affected by many plants. The location of even at points there is little or no generation [2]. There is large support can be decided by the comparison of the voltage amount of power transmitted from Yunnan province and sensitivity and location where the impact is largest. The results Guizhou province to