Distributed power generation investment and distribution network planning optimization method in deregulated environment
A technology of distributed power generation and optimization method, which is applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve the problems of increased power generation costs, lack of interest coordination mechanism, and does not consider the impact of the interest relationship between DNO and DGO, so as to meet the technical requirements Effect
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Embodiment 1
[0042] See Figure 1-Figure 5 , The present invention provides the following technical solutions: a distributed power generation investment and distribution network planning optimization method in a deregulated environment, including model construction and an improved multi-objective hybrid leapfrog algorithm, the improved multi-objective hybrid leapfrog algorithm includes hybrid The mechanism and steps of the leapfrog algorithm. From the steps of the hybrid leapfrog algorithm, the algorithm has a logical and clear framework structure, but SLFA uses formulas (14) and (15) to calculate or replace Pg in the process of local optimization. Pb, when there is no better frog, a frog will be randomly generated in the search space to continue the optimization, but at this time, it may appear that the position of the new frog is not as good as the previous worst frog. In the invention, the random simplex method is used to improve the local search capability of SLFA, thereby effectively av...
Embodiment 2
[0120] See image 3 with Figure 6-Figure 12 , The present invention calculates the proposed method through IEEE-33 node distribution network system, the system structure is as image 3 As shown, the system has 32 branches and 5 tie switch branches. The average load and power factor of each load point are 55.5KW and 0.9285 respectively. The network passes through a 20KV substation, and St=0tr, s =20MW, the single unit capacity of the transformer Captr=10MW, the unit price Ctr=500,000 yuan, the present invention considers the simultaneous existence of non-renewable and renewable DG situations, Image 6 The relevant characteristics of gas turbines, diesel, cogeneration and wind turbines are given, Figure 7 The technical characteristics of wind power generator sets are given, and four load levels are considered, namely low load, waist load, base load and peak load. Figure 8 The predicted load demand and the adjustment coefficient value of the electricity price and their respective...
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