Feasibility Study of EHV Interconnection Between China Southern Power Grid (CSG) and Vietnam Electricity (EVN)

doi:10.11930/j.issn.1004-9649.2013.11.42.4

Abstract

Abstract: In recent years, Vietnam Electricity (EVN) faces great shortage of power supply due to fast power load growth and delayed power plant construction. So it can be a possible solution to expand the scale of interconnection between Vietnam Electricity(EVN) and China Southern Power Grid (CSG) based on the existed inter link of 220 kV and import more power from China. Meanwhile, CSG, especially the Yunnan province, has abundant hydropower in flood season, but a difficult power balance in dry season. Therefore, it is necessary to study the feasibility of bi-directional power trading through the expanded interconnection with EVN proposed above to improve the total operation efficiency. Based on the analysis of energy resources across the two countries’ boundary regions, the power balance, as well as the load curve coincidence of CSG and EVN, are studied, and the scheme of the EHV interconnection between CSG and EVN, including the scale and technical route, is proposed. Some constructive suggestions are given on power trading curves, and the economic feasibility of the EHV interconnection is analyzed in terms of the electricity prices.

Key words: China Southern Power Grid (CSG), Vietnam Electricity (EVN), extra high voltage (EHV) interconnection, feasibility

CLC Number:

TM715

ZHU Qing-chun, LIN Ting-wei, HUANG Juan-juan, KANG Yi. Feasibility Study of EHV Interconnection Between China Southern Power Grid (CSG) and Vietnam Electricity (EVN)[J]. Electric Power, 2013, 46(11): 42-46.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2013.11.42.4

https://www.electricpower.com.cn/EN/Y2013/V46/I11/42

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