Accommodation Capacity of Jiangsu Power Grid External Electricity Based on UHV AC/DC Hybrid

doi:10.3969/j.issn.1000-7229.2016.02.014

Abstract

Abstract:

This paper firstly introduces the general situation of Jiangsu Power Grid and electric power input from external regions. According to the operation status of electric power input from external regions, we discuss the problems caused by inputting electric power to Jiangsu Power Grid from views of total amount, regulating characteristics, electricity balance, etc. Based on the brief analysis of the main influence factors of electric power accommodation from external regions, we analyze the accommodation capacity of the existing electric power input and the planning schemes for the future input electric power increase. From the analysis it can be found that, the planned grid structure of Jiangsu Power Grid in 2020 can be satisfied to receive 55 GW electricity from outside system; but the dynamic reactive power compensation device with a certain capacity should be configured near the UHV placement, and the 500 kV grid construction should be improvec near the placement and the layout of accident reserve capacity should be optimized in the province. Meanwhile, the planned main grid structure of Jiangsu Power Grid in 2020 can meet the requirements of the safe and stable operation during N-2 fault or double-level locking fault in a DC convertor station.

Key words: UHV, AC/DC hybrid system, Jiangsu Power Grid, input electric power from external regions, accommodation capacity

CLC Number:

TM 715

CAI Hui, MENG Fanjun, GE Yi, HUANG Junhui, LUO Jinshan, XIE Zhenjian, QI Wanchun. Accommodation Capacity of Jiangsu Power Grid External Electricity Based on UHV AC/DC Hybrid[J]. Electric Power Construction, 2016, 37(2): 100-106.

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