A distribution network pmu configuration method and system for improving parameter identification accuracy
A technology of parameter identification and configuration method, which is applied in the direction of circuit devices, measuring electronics, measuring devices, etc., can solve the problem of not being able to determine the optimal layout of the PMU, and achieve the effect of reducing the identification error
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Embodiment 1
[0039] The embodiment of the present invention discloses a distribution network PMU configuration method that improves the accuracy of parameter identification. The main technical problems to be solved include the following points:
[0040] (1) A multi-period mixed measurement parameter identification method based on the least square method. Compared with the transmission network, the distribution network has more voltage levels and a more complex network structure. The commonly used measurement models of the transmission network are no longer applicable to the distribution network. It is necessary to combine the network topology, the number and characteristics of PMU distribution points, and propose a distribution network line parameter identification model suitable for online applications. The method of this embodiment guarantees the identification accuracy through multi-point identification in practical application. After obtaining the basic identification model based on th...
Embodiment 2
[0091] In one or more embodiments, a distribution network PMU configuration system for improving parameter identification accuracy is disclosed, including three modules: mixed measurement identification, dominant parameter analysis, and genetic algorithm configuration. Among them, the hybrid measurement identification module obtains the parameter identification result according to the system topology and PMU configuration data; then in the dominance analysis module, the configuration target is extracted from the identification result; finally, the PMU configuration module forms a configuration scheme, and checks that the scheme is in the iterative times If it meets the configuration requirements, the result will be output if it is satisfied, and it will be identified again if it is not satisfied.
[0092] Or, in some other implementation manners, a PMU configuration system for distribution network that improves the accuracy of parameter identification is disclosed, including: ...
Embodiment 3
[0100] In one or more embodiments, a terminal device is disclosed, including a server, the server includes a memory, a processor, and a computer program stored on the memory and operable on the processor, and the processor executes the The program implements the distribution network PMU configuration method for improving parameter identification accuracy in the first embodiment. For the sake of brevity, details are not repeated here.
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