Improved reference power grid evaluating method
An evaluation method and a technology of referring to the power grid, applied in the direction of instruments, data processing applications, predictions, etc., can solve problems such as difficult to clarify the investment direction of power grid planning, no consideration, etc.
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[0045] The present invention will be further described below in conjunction with accompanying drawing.
[0046] Such as figure 1 As shown, an improved reference grid evaluation method specifically includes the following three steps:
[0047] (1) Given the parameters of the current power grid, the load forecast value of each time period in the forward-looking time scale, and the candidate branch scheme of the planning network;
[0048] (2) Construction of an optimization model, the optimization model aims at minimizing the annual power generation cost and the annual transmission cost and includes multiple constraints;
[0049] The expression of the objective function in the optimization model is:
[0050]
[0051] In the formula, N T is the set of divided load periods; N Gis the set of generators; N L is the collection of transmission branches; Output active power for conventional unit g in time period t; C g is the linear cost coefficient of generator set g; Δτ t i...
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