Power distribution network topology identification method based on voltage correlation coefficient
A technology of distribution network topology and correlation coefficient, applied in the direction of electrical digital data processing, electrical components, circuit devices, etc., can solve problems such as huge amount of calculation and identification methods that are difficult to support, so as to improve scientificity and rationality, and improve practicality. Effects of Sex and Reliability
Pending Publication Date: 2022-06-07
JIANGSU ELECTRIC POWER CO
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Problems solved by technology
When the scale of the distribution network is large, using the connection criterion to traverse the connection relationship between the nodes of the distribution network requires a huge amount of calculation, and the traditional identification method is difficult to support
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[0032] In order to further illustrate the details of the technical solutions of the present invention, an embodiment is now given and described with reference to the accompanying drawings.
[0033] like figure 1 As shown, a method for identifying a distribution network topology based on a voltage correlation coefficient includes the following steps:
[0034] S1: Remove redundant electrical equipment in the distribution network model and simplify the topology model of the distribution network;
[0035] S2: Construct the simplified distribution network topology model into an abstract model, determine the voltage correlation coefficient based on the voltage of the substation bus and the distribution transformer load point, and generate a voltage correlation coefficient matrix;
[0036] S3: Use the graph search algorithm to obtain the relationship set between the voltage correlation coefficient and the switch state, construct the distribution network topology model as a probabili...
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The invention discloses a power distribution network topology identification method based on a voltage correlation coefficient, and the method comprises the steps: removing redundant electrical equipment in a power distribution network model, and simplifying a topology model of a power distribution network; constructing the simplified power distribution network topology model into an abstract model, determining a voltage correlation coefficient based on the voltage of a transformer substation bus and a distribution transformer load point, and generating a voltage correlation coefficient matrix; a graph search algorithm is adopted to obtain a relation set of voltage correlation coefficients and switch states, the power distribution network topology model is constructed into a probability network model, parameters of the probability network model are reasoned, states of all switches in the model are obtained, and then the operation state topology condition of the power distribution network is determined; according to the method, the practicability and reliability of the identification technology are improved, a solid foundation is provided for efficient and reasonable power distribution network planning design and operation control, and the scientificity and rationality of scheduling decisions are effectively improved.
Description
technical field [0001] The invention designs the technical field of distribution network topology identification, in particular to a distribution network topology identification method based on a voltage correlation coefficient. Background technique [0002] As an important part of the power distribution system, the distribution network is a complex network containing multiple devices, and its safe and reliable operation is an important guarantee for production and life. During the actual operation, due to uncertain factors such as equipment maintenance and failure, the network topology will change irregularly. [0003] At present, the distribution network topology maintenance is often affected by human subjectivity and analysis methods, and it is prone to topology maintenance errors, which is difficult to meet the relevant needs of the actual operation analysis business of the distribution network. The traditional distribution network topology identification method is base...
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Login to View More IPC IPC(8): G06F30/18G06F30/20H02J3/00G06F111/08G06F113/04
CPCG06F30/18G06F30/20H02J3/00G06F2111/08G06F2113/04H02J2203/20Y04S10/50
Inventor 王一清高海龙肖学权周钰山张潇任孝峰吴冲苏岭东周峰
Owner JIANGSU ELECTRIC POWER CO