A Tabu Search-Based Heuristic Black-Start Reconfiguration Method for Power Distribution Networks
A power distribution network, taboo search technology, applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve the problems of difficult application, complex microgrid structure, and many types and quantities of microgrid power sources.
Active Publication Date: 2020-11-13
GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology
Due to the complex structure of the microgrid and the large number and types of power sources in the microgrid, many algorithms take a long time to obtain the optimal solution, and it is very easy to fall into local optimum, which is difficult for practical application.
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Embodiment 1
[0124] Such as figure 1 As shown, a heuristic power distribution network black start reconstruction method based on tabu search includes the following steps:
[0125] Step 1. Input the original data, including the DG, load, and line parameters of the distribution network to be optimized. For the load, the load type and unit power failure loss are also required;
[0126] Step 2. Determine the relevant parameters of the optimization model based on engineering experience and actual needs, the time period for restoration and reconstruction, the number of lines that are allowed to be put into operation at the same time, the system reserve ratio, the load fluctuation coefficient, and the maximum frequency deviation allowed by the system;
[0127] Step 3. Establish a distribution network black start reconstruction model;
[0128] S31. Clarify the black start reconstruction model of the distribution network: assume that the distribution network is completely out of power, and the ext...
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The invention relates to a heuristic power distribution network black start reconstruction method based on tabu search. The method comprises the following steps: S1, inputting original data; S2, determining relevant parameters of an optimization model according to engineering experience and actual needs; S3, establishing a distribution network black-start reconstruction model; S4, solving a powerdistribution network black-start reconstruction model in a heuristic mode by adopting tabu search to obtain an undetermined solution; S5, performing power flow verification of a recovery action corresponding to the undetermined solution: if the security constraint is not met, adding a constraint condition into the distribution network black-start reconstruction model, setting the undetermined solution as a non-feasible solution, removing the undetermined solution which does not pass the power flow verification, turning to the step 4, and performing re-optimizing; S6, outputting a recovery action corresponding to the undetermined solution passing the power flow verification. According to the invention, the recovery sequence of the power-losing nodes is determined and the recovery path is optimized through the heuristic power distribution network black-start reconstruction based on tabu search, so that the power failure loss is reduced, and the important load recovery time is shortened.
Description
technical field [0001] The invention relates to the technical field of black-start reconfiguration of power distribution networks, and more specifically, to a heuristic black-start reconfiguration method of power distribution networks based on tabu search. Background technique [0002] The new technology of distributed generation (DG) auxiliary distribution network black start proposes that after a large-scale power outage, the black start scheme based on DG can be divided into two steps. First, according to the performance of DG and the distribution of important loads, the distribution network is divided into multiple subsystems, and each subsystem is restored in parallel. Secondly, determine the restoration sequence of power-off nodes and optimize the restoration path to shorten the restoration time of important loads and power failure losses. [0003] Distribution network black start reconfiguration is one of the key issues of DG assisted grid black start. Different fro...
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IPC IPC(8): G06Q10/04
CPCH02J3/38H02J3/388H02J3/46H02J2203/20
Inventor 阮志杰方嵩刘劲
Owner GUANGDONG POWER GRID CO LTD