Power auxiliary analyzing method and system containing distributed type power generation and distribution network
A technology of distributed power generation and auxiliary analysis, applied in the direction of reactive power adjustment/elimination/compensation, electrical components, reactive power compensation, etc., can solve problems such as voltage and power fluctuations, and achieve simple equipment, easy promotion and use, and professional strong effect
Inactive Publication Date: 2015-04-08
CHINA AGRI UNIV
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[0004] In order to overcome the shortcomings of voltage and power fluctuations that occur after the existing distributed generation is connected to the distribution network, the present invention provides a power auxiliary analysis method and system including distributed generation and distribution network, and gives voltage reactive power Optimized decision support improves the problems of voltage drop and excessive reactive power after distributed generation is connected to the distribution network
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[0028] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0029] The realization of the present invention requires three stages: network topology matrix calculation and network connection analysis, three-phase power flow calculation, and reactive power optimization calculation. In the first stage, the system calculates the network topology matrix and analyzes the network connection through the input topology information and actual measurements. In the second stage, the three-phase power flow calculation of the distribution network with distributed generation is performed through the generated network topology matrix, and the system outputs the calculation results of the power flow calculation. In the third stage, according to th...
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The invention discloses a power auxiliary analyzing method and a system containing a distributed type power generation and distribution network. The method includes obtaining distributed type power source data; conducting network topological matrix calculation and network wiring analysis according to the data, wherein the distributed type power source data comprise types, power and terminal voltage of a distributed type power source; conducting three-phrase power flow calculation according to results of the network topological matrix calculation and the network wiring analysis; and conducting reactive power optimization calculation according to a result of the three-phrase power flow calculation and combining a reactive power optimization model of the distributed type power generation and distribution network. According to the power auxiliary analyzing method and the system containing the distributed type power generation and distribution network, the functions such as the power flow calculation and reactive power optimization of distributed generation are added, professional performance of the system is strong, and applied range is enlarged.
Description
technical field [0001] The invention relates to the technical field of smart grid distributed power generation, in particular to a power auxiliary analysis method and system including distributed power generation distribution network. Background technique [0002] Smart grid has become a new strategy for the development of power industry in various countries in the 21st century. Distributed power generation has become a research hotspot in recent years because of its safety, reliability, flexibility, and self-healing advantages required by smart grid. The emergence of distributed power generation solves the disadvantages of traditional centralized power generation and long-distance transmission power systems that lack flexibility, cannot track load changes in real time, and local accidents are easy to spread, leading to large-scale blackouts and difficult to transmit power to remote mountainous areas and rural areas; at the same time, due to Most of the power generation is c...
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IPC IPC(8): H02J3/00H02J3/18
CPCY02E40/30
Inventor 高万林王冠贺媛婧王坤
Owner CHINA AGRI UNIV