Multi-time scale dynamic division method for optical storage virtual power plant
A multi-time scale, virtual power plant technology, applied in the field of distribution network, can solve the problems of difficult to accurately match the power grid, mutual influence between partitions, difficult to reflect the characteristics of the block itself, etc., to achieve stable results, small changes in partitions, and dimensionality reduction. reduced effect
Pending Publication Date: 2022-05-24
STATE GRID JIANGSU ELECTRIC POWER CO ZHENJIANG POWER SUPPLY CO +1
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The disadvantages of the above literature are: the dynamic cluster division method still has some shortcomings, and there is still mutual influence between the divisions during the voltage regulation process, and it is difficult to accurately match the changes in the actual operating conditions of the power grid.
[0004] The distribution network division methods mentioned in the above literatures fail to consider the actual operating conditions of the distribution network throughout the day, track the divided blocks in real time and make timely adjustments, and the above methods use the voltage regulation of the distribution network Mainly, it is difficult to reflect the characteristics of the divided blocks
Therefore, the existing technology does not solve how to establish the optimal division model of the optical-storage virtual power plant through the dynamic division method of the distribution network, and obtain the optimal division scheme that matches the actual operating conditions of the power grid
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[0081] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0082]The overall framework and optimization theory of the multi-time scale dynamic division method of the present invention are as follows: a multi-time scale overall framework is proposed, including dynamic optimization division with ΔT as time scale and feedback correction division with Δt (Δt<ΔT) as time scale. The dynamic optimal division is based on MΔT as the time window for optimal division, and the division result within the MΔT time is used as the division result within the first ΔT time in MΔT, and then feedback correction is performed on the obtained division result within the ΔT time period. , and take the feedback correction result as the final division result. Each time the time window moves by the ΔT time period, the dynamic division process of the entire optimization process is realized through the continuous movement of the time...
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The invention discloses a multi-time-scale dynamic division method for an optical storage virtual power plant, and the method comprises the steps: 1, obtaining an initial feasible division scheme, and setting an initial division line of dynamic division; 2, establishing a dynamic division model taking delta T as a time scale, solving the model, and taking a solving result in M delta T time as a dynamic division scheme in the first delta T time; 3, performing feedback correction on the dynamic division scheme obtained in the step 2; and 4, judging whether the optimization time is finished or not, if the optimization time is not met, repeating the steps 2 to 3, continuously moving the time window, and completing multi-time scale dynamic division in the whole optimization time until the optimization time is finished. According to the invention, the optimal division scheme matched with the actual operation condition of the power grid is obtained by a dynamic division method.
Description
technical field [0001] The invention relates to a multi-time scale dynamic division method for an optical storage virtual power plant, belonging to the technical field of distribution networks. Background technique [0002] The connection of energy storage devices to the distribution network containing distributed photovoltaics can greatly improve the consumption capacity of distributed photovoltaics and improve the utilization rate of distributed photovoltaics. The difficulty of control increases. The use of photovoltaic-storage virtual power plant division technology can divide the distribution network blocks to improve the independent and autonomous ability of virtual power plants, realize face-to-point control, and reduce the difficulty of distribution network control. [0003] In the prior art, the document "Improved Particle Swarm Optimization Algorithm and Its Application in Reactive Power Partitioning of Power Grid" published in February 2017 (Yu Lin et al., Shandong...
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Login to View More IPC IPC(8): H02J3/00H02J3/38H02J3/28G06Q10/04G06Q10/06G06Q50/06
CPCH02J3/00H02J3/381H02J3/28G06Q10/04G06Q10/06312G06Q50/06H02J2203/20H02J2300/24Y02E70/30Y02E10/56
Inventor 笪涛陈诚汤欣赵肖旭任萱张大林丁瑾许冠亚成福明黄灵通
Owner STATE GRID JIANGSU ELECTRIC POWER CO ZHENJIANG POWER SUPPLY CO