Random optimization scheduling method considering flexibility for wind power-containing electric power system
A power system, stochastic optimization technology, applied in wind power generation, climate sustainability, greenhouse gas reduction, etc., can solve the problem of difficulty in scheduling results to achieve operational flexibility and economy, high cost, and limited renewable energy consumption capacity And other issues
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[0108] A stochastic optimal dispatching method for a power system containing wind power considering flexibility, comprising the following steps:
[0109] Step 1: According to the historical operation data of wind power in the area where the wind power system is located, a mixed Gaussian model is used to establish a wind power fluctuation probability model:
[0110]
[0111] In the formula: Δw is the wind power fluctuation; M is the number of mixed Gaussian components; N m (Δw,μ m ,σ m ) is the mth Gaussian component; ω m , μ m , σ m The weight coefficient, mean and standard deviation of the mth Gaussian component respectively;
[0112] Step 2: Based on the wind power fluctuation probability model, combined with the load forecast fluctuation ΔP l,t , to obtain the probability model of flexibility demand in period t:
[0113]
[0114] Where: ΔP l,t is the fluctuation amount of load forecast in period t, l represents the load; FR t is the flexibility demand in peri...
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