A Hierarchical and Partitioned Grid-Connection Planning Method for Intermittent Renewable Energy
A renewable energy, layered and partitioned technology, applied in the direction of AC network with the same frequency from different sources, AC network circuit, single-network parallel feeding arrangement, etc., can solve the problem that the grid-connected planning method cannot realize multiple intermittent at the same time Renewable energy layered and partitioned access points to optimize active power transmission and other issues, to achieve the effects of grid line expansion scheme optimization, comprehensive planning optimization scheme, and capacity optimization
Active Publication Date: 2021-01-12
STATE GRID JIANGSU ECONOMIC RES INST +3
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Problems solved by technology
[0005] The current grid-connected planning method cannot simultaneously realize the optimization of multiple intermittent renewable energy hierarchical and partitioned access points, the optimization of grid line expansion schemes, and the optimization of active power output capacity.
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[0054] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
[0055] Such as figure 1 As shown, the intermittent renewable energy layered partition grid-connected planning method of the present invention, the specific steps are as follows:
[0056] Step 1: Obtain grid data, power data and load data in the system including intermittent renewable energy.
[0057] The grid data specifically includes: the erection cost of each line corridor single-circuit line, the beginning and end nodes, the upper limit of the number of lines, the number of existing lines, the impedance value of the line, and the forced outage rate of the line.
[0058] The power data specifically includes: the upper and lower limits of the output of conventional generators, the forced outage rate and economic parameters, the installed capacity of intermittent power sources, output distribution parameters and other relevant data.
[0059] The...
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The invention discloses a hierarchical and partitioned grid-connected planning method for intermittent renewable energy, which can simultaneously plan multiple intermittent renewable energy hierarchical and partitioned access points, power grid line expansion schemes, and active power output capacity Carry out optimal planning; in the planning process, the optimal schemes of access points and lines are obtained based on different active power transmission capacity values, and based on these optimal schemes, the production cost, reliability, and power transmission revenue indicators are evaluated through production simulation. Evaluation, based on the construction cost and the above evaluation indicators, through the TOPSIS method to realize the optimal plan decision of active power transmission capacity, intermittent renewable energy access point, and power grid line expansion plan.
Description
technical field [0001] The invention relates to the technical field of power grid planning, in particular to a hierarchical and partitioned grid-connected planning method for intermittent renewable energy. Background technique [0002] With the rapid development of intermittent renewable energy such as wind power and photovoltaics in my country, the intermittency and volatility of this type of energy will have a significant impact on the operation and planning of the power grid. Therefore, it is of great importance to consider its impact in power grid planning. necessity. [0003] Because the large-capacity intermittent renewable energy in the grid system has different access voltage levels, access areas, and specific access points, its impact on the operation of the grid system will also be different, which involves the operation of the grid. Safety, reliability and economics, therefore, hierarchical zonal access point optimization for intermittent renewable energy sources ...
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IPC IPC(8): H02J3/38H02J3/48H02J3/06G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06H02J3/382H02J3/06H02J3/48H02J2203/20Y02E40/70Y04S10/50
Inventor 南开辉王哲吴传申张群蔡晖孙文涛杨鹏李辰谢胤喆冯俊淇
Owner STATE GRID JIANGSU ECONOMIC RES INST