Research on the Coordination Control between STATCOM and VQC in Substation Based on the Identification of System State

Abstract:

For traditional voltage and reactive power control (VQC) of substation will cause frequent adjustment of transformer taps and switching of capacitor banks, which exerts a certain impact on system voltage, the static synchronous compensator (STATCOM) is supposed to be installed in the substation to improve the effect of VQC. A coordination control strategy between STATCOM and VQC in substation based on the identification of system state is proposed in this paper to coordinate the operation between on-load tap changers (OLTC), capacitors and STATCOM. In addition, we have a research on the application effect of this strategy with BPA. The simulation results show that STATCOM plays an important role in improving the substation performance in both steady state and transient state and it can effectively reduce the frequency of tap changing and capacitor switching. Besides, the system will perform better if both of the main transformers are equipped with STATCOM than only one is configured.

• Periodical: Advanced Materials Research (Volume 905)
• Pages: 469-475
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.905.469
• Online since: April 2014
• Authors: Jian Hui Li, Jia Xin Zou
• Keywords: BPA, STATCOM, Steady Simulation, Transient Simulation, Vqc

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