Optimization method of decentralized wind storage system considering multiple interests of source-network-load

A system optimization and decentralized technology, applied in the direction of system integration technology, information technology support system, resources, etc., can solve the problem that the reactive power capacity of wind turbines cannot be effectively used, so as to improve the load curve, increase profits, and reduce wind turbines. Active power reduction effect

Active Publication Date: 2022-04-26
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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Problems solved by technology

In fact, wind turbine converters and energy storage power control systems (PCS) both have reactive power output capabilities. In view of the lack of relevant mandatory regulations in the country, the reactive power capacity of most wind turbines in my country cannot be effectively utilized, especially for The distributed grid-connected wind storage system can meet the system voltage requirements by using the reactive power adjustment capability of the wind turbine converter and energy storage PCS

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  • Optimization method of decentralized wind storage system considering multiple interests of source-network-load
  • Optimization method of decentralized wind storage system considering multiple interests of source-network-load
  • Optimization method of decentralized wind storage system considering multiple interests of source-network-load

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Embodiment

[0116] The structure diagram of 10kV distribution network system in a certain area is as follows figure 1 As shown in the figure, nodes #6, #32, #39, #24, and #17 are candidate nodes of the wind storage system, which are marked as candidate nodes #1-5 respectively. We will select three of them to configure the dispersion of different capacities. air storage system. The local maximum load is 20.0043MW, increasing at a rate of 2%, with a power factor of 0.9875. The physical and economic parameters of wind turbines and energy storage units are shown in Table 1 and Table 2, the time-of-use electricity price information is shown in Table 3, and the load transfer agreement between the distribution network operator and the distributed power source investor is shown in Table 4. Show. The planning period is 10 years, and the simulation step size is 1 hour. In order to avoid falling into local optimum during the solving process of NSGA-II, the crossover factor, mutation factor and ge...

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Abstract

The invention discloses a distributed wind storage system optimization method that considers the multi-party interests of source-grid-load. The investor's maximum internal rate of return is his goal; the user's maximum benefit after implementing demand-side response is his goal; based on the multi-objective optimization planning model of the distribution network operator, the distributed power investor and the user's three-way stakeholder, using Distributed wind storage system scheduling strategy, and fully consider the wind storage system reactive power adjustment capacity, so as to optimize the interests of the above-mentioned grid operators, distributed power investors and users. In the distributed power planning process, the present invention considers the planning scheme of the source-network-load tripartite interests, which has more practical engineering significance, can improve the income of distributed power investors, and increase the utilization rate of renewable energy.

Description

technical field [0001] The invention relates to an optimization method for a distributed wind storage system considering the multi-party interests of source-grid-load. Background technique [0002] With the access of distributed power sources and diverse loads, the distribution network has changed from "passive" to "active", and the power flow has changed from "one-way" to "multi-directional", showing a more complex "multi-source" "Characteristics, through the optimal planning and regulation of distributed power generation (DG) and energy storage unit (ESS), the coordinated operation of source-grid-load in the distribution network can be realized, and renewable energy can be fully absorbed. In recent years, my country's centralized wind power has exploded, and the problems of 'abandoning wind and limiting power' and 'subsidy gap' have become increasingly acute. Decentralized wind power is considered to be a supplement to the wind power industry, and has gradually attracted m...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/06315G06Q50/06Y04S10/50Y02E40/70
Inventor 王楠程艳孙树敏王玥娇张兴友李山周宁魏大钧王士柏于芃滕玮李广磊
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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