Distributed power generation location planning method based on power supply community structure
A technology of distributed power generation and community structure, which is applied in the field of distributed power generation location planning based on power supply community structure, can solve the problems of not fully considering the security and stability requirements of the system, and the difficulty of taking into account the long-term dynamic development needs of the system, etc., to achieve stable operation Effect
Active Publication Date: 2018-10-19
XIAN JIAOTONG LIVERPOOL UNIV +1
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Problems solved by technology
However, since the load and power generation resources are constantly growing and changing, these methods are difficult to take into account the long-term dynamic development requirements of the system, and do not fully consider the security and stability requirements of the system
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[0053] The steps of the present invention are as image 3 Shown:
[0054] 1. First of all, for a traditional distribution network, there are only loads in the network without access to distributed power generation equipment, and parameters such as impedance and transmission capacity of all lines are determined according to its structural parameters.
[0055] 2. Calculate the equivalent impedance and equivalent transmission capacity between all nodes:
[0056] Z vw = Z' w -2Z' vw +Z ww
[0057]
[0058] Among them, Z'vv(Z'ww) is the element in row v(w) and column v(w) of the impedance matrix, and Z'vw is the element in row v and column w of the impedance matrix. P lmax Indicates the maximum power allowed to be transmitted by the transmission line l under normal conditions, F indicates the power transfer distribution factor (Power Transfer Distribution Factor), F l vw Indicates the change of the power flow on the transmission line l when the electric energy of unit p...
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The invention discloses a distributed power generation location planning method based on a power supply community structure. The method comprises the steps that the composite weight of the electricaldistance between the power generation nodes and the load nodes in a power grid and the effective transmission capacity is taken to define the equivalent power supply correlation strength between the two nodes, and the power supply correlation strength between the two power generation nodes, the two load nodes, the power generation and transmission nodes and the load and transmission nodes is zero;the power grid is divided into multiple community structures, and the power supply correlation strength matrix of the entire grid nodes of the power grid is calculated according to the equivalent power supply correlation strength between the two nodes; and the difference of the power supply correlation strength between all the power generation nodes and the load nodes in the known network and thestochastic network is calculated, and the power generation node distribution scheme of the highest difference value acts as the optimal solution. The power supply modular index is defined as the quantitative index of the construction mode of the power supply community structure to be applied to location planning and evaluation of distributed power generation so as to be adaptive to the constantlydeveloping dynamic balance requirement of the load and distributed power generation.
Description
technical field [0001] The invention relates to the transformation and planning of a traditional power distribution network, in particular to a site selection and planning method for distributed power generation based on a power supply community structure. Background technique [0002] With the introduction of the concept of Energy Internet, the construction of user-side energy network or energy local area network has become an important issue in the development of Energy Internet. However, the resource allocation and operation mode of the existing distribution network is built according to the early planning, which cannot meet the requirements of Energy Internet. The goals of freedom, reciprocity, flexibility, and autonomy. An important challenge to be faced in the construction of smart grids and energy Internet is the deployment and development of distributed generation in traditional distribution networks. [0003] At present, there is still a lack of unified and effecti...
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IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/043G06Q50/06Y04S10/50
Inventor 魏刚赵传志吴春潮薛飞卢少锋徐晓彤
Owner XIAN JIAOTONG LIVERPOOL UNIV
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