Intelligent voltage regulating method for high-permeability distributed energy sources system based on cluster dividing
A distributed energy and high-permeability technology, applied in the field of intelligent voltage regulation of high-permeability distributed energy systems, can solve problems such as inconvenient voltage regulation
Active Publication Date: 2018-06-19
ANHUI UNIVERSITY +1
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[0005] The present invention is aimed at the existing high-permeability large-scale distributed energy system, which is still in the exploratory stage in terms of cluster division basis, division method, and voltage regulation strategy, and it is not convenient to carry out subsequent voltage regulation for high-permeability large-scale distributed energy systems. , providing an intelligent voltage regulation method for high-permeability distributed energy systems based on cluster division
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[0075] In order to make the technical means, creative features, goals and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.
[0076] The gist of the present invention is that, through the analysis of the existing high-permeability distributed energy system, it is found that the cluster division basis, division method, voltage regulation strategy, etc. For the problem of subsequent voltage regulation in the energy system, the present invention provides an intelligent voltage regulation method for high-permeability distributed energy systems based on cluster division to solve the above problem.
[0077] see figure 1 , the intelligent voltage regulation method of the high-permeability distributed energy system based on cluster division of the present invention, its core steps include:
[0078] The K-means algorithm is used to divide the N nodes in the distributed energy system in...
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The invention discloses an intelligent voltage regulating method for a high-permeability distributed energy sources system based on cluster dividing. A cluster dividing basis, a dividing method and avoltage regulating strategy are still at the exploratory stage, which does not bring convenience to the high-permeability distributed energy sources system for carrying out the subsequent voltage regulation. The invention provides the intelligent voltage regulating method for the high-permeability distributed energy sources system based on cluster dividing. The method comprises the steps: dividingthe nodes in a power system into n sub-communities through the K-means algorithm, taking the reactive power and active power of a controllable PV node as adjustable variables, and carrying out the load flow calculation in the sub-communities; presetting a nonlinear regulation period, carrying out the coarse regulation of the voltage of the controllable PV node through a mixed PSO (Particle SwarmOptimization) algorithm, and determining a working point gamma; and carrying out the fine adjustment of the voltage of the controllable PV node through a linear equation of a node voltage according tothe determined working point gamma. The method can effectively solve an overvoltage problem of a high-permeability renewable energy source, and is good in real-time performances.
Description
technical field [0001] The invention relates to the technical field related to power system operation optimization, in particular to an intelligent voltage regulation method for a high-permeability distributed energy system based on cluster division. Background technique [0002] The cluster system formed by the grid connection of new energy sources such as wind power and photovoltaics has the characteristics of multi-capacity, high density, and large-scale, and can be divided into regional decentralized / centralized and different access forms. The large-scale access of distributed generation (DG) is prone to adverse effects such as voltage overrun, power reverse, and line overload, and will gradually transform the traditional radial distribution network into an active distribution network. Among them, the voltage limit is the most obvious problem, and the method of relying on the on-load voltage regulator of the substation and the local reactive power compensation needs to b...
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IPC IPC(8): H02J3/12H02J3/16G06Q50/06
CPCG06Q50/06H02J3/12H02J3/16H02J2203/20Y02E40/30
Inventor 张倩丁津津王群京胡世骏马金辉徐斌芮涛刘童马愿
Owner ANHUI UNIVERSITY