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State Grid Hubei Electric Power Co., Ltd. took the lead in independently building the operation mode

日期: 2022-03-04
浏览次数: 1

State Grid Hubei Electric Power Research Institute, a subordinate unit of State Grid Hubei Electric Power Co., Ltd., recently completed the measured modeling and simulation analysis of the first new energy station, marking that State Grid Hubei Electric Power Research Institute has become the first unit in Central China that can independently carry out such work.

With the continuous development of new power system construction, it is estimated that there may be 5 to 10 million kilowatt new energy bases connected to 500 kV power grid in Hubei this year. High proportion of new energy access may bring challenges to the safe operation of power grid.

In the past, power dispatching agencies often need to accurately analyze the influence of new energy sources on the stability of power grid through simulation calculation, so as to ensure the full consumption of new energy sources. Therefore, it is necessary to establish an electromechanical transient model that can accurately reflect the actual control characteristics of the new energy station as soon as possible.

In January, 2022, Hubei Institute of Electrical Science and Technology selected the 100 MW photovoltaic power station in Qinzhuang, CGNPC, located in Zaoyang City, for the actual measurement modeling and simulation analysis. This is equivalent to rebuilding an identical photovoltaic power station in the computer.

In the process of modeling photovoltaic power generation system, Hubei Institute of Electric Power has carried out simulation analysis of 12 fault ride-through working conditions and more than 70 transient waveforms, and completed identification of more than 60 key parameters. On this basis, the model parameters of the whole station equipment and lines are equivalently aggregated, and a more simplified and practical station equivalent model is established. This model can accurately reflect the dynamic characteristics of the whole photovoltaic power station.

It is reported that in the next step, State Grid Hubei Electric Power will continue to deepen the field of new energy and energy storage, promote the measured modeling and simulation analysis of new energy power stations in the province, and further tackle the modeling and simulation of energy storage power stations to continuously improve the accuracy of simulation analysis of power grid operation.

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