Method for analyzing operation state of substation by combining whole grid model with local grid model

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United States of America Patent

PATENT NO 9851415
SERIAL NO

14609632

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Abstract

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The disclosure relates to the crossing field between a power transmission of an ultra-high-voltage and a power system simulation, specifically a method for analyzing an operation state of a substation by combining a whole grid model with a local grid model is provided according to the disclosure. The method includes following steps: performing a load flow calculation for the provincial grid to which a ultra-high-voltage line belongs, wherein initial data of the load flow calculation employs a grid model with E format for national power grid dispatching control center; making an equivalent transform for the model, forming an island independently from the provincial grid to which a ultra-high-voltage line belongs, and making a load flow calculation for the island to acquire data of node voltages and line transmission power.

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Patent Owner(s)

Patent OwnerAddress
STATE GRID CORPORATION OF CHINA (SGCC)BEIJING 100031
NORTH CHINA ELECTRIC POWER UNIVERSITY102206 NO 2 NONG ROAD CHANGPING DISTRICT BEIJING BEIJING CITY BEIJING CITY 102206
STATE GRID SHANXI CHANGZHI POWER SUPPLY COMPANYNO 63 TAIHANG EAST ROAD CHANGZHI SHANXI 046011

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dong, Lei Shanxi, CN 68 218
Li, Ye Shanxi, CN 192 1854
Liu, Peng Shanxi, CN 833 6111
Shen, Xiaoli Shanxi, CN 3 1
Tian, Aizhong Shanxi, CN 1 1
Wang, Chanqiong Shanxi, CN 1 1

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