Power system reliability evaluation method based on improved Monte Carlo method
A Monte Carlo method, power system technology, applied in instrument, character and pattern recognition, data processing applications, etc., can solve problems such as errors, inability to evaluate power systems, and unsuitable for reliability evaluation of large-scale power systems, and achieve improved evaluation. The effect of efficiency
Pending Publication Date: 2020-11-17
杜金其
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For the entire power system, the power system is a system with strong randomness, and various factors affecting reliability are random. When using deterministic methods, there will be large errors in the evaluation results, which cannot be scientifically determined. Effective evaluation of the entire power system, and the analytical method and Monte Carlo method, which are probabilistic evaluation methods, are the basic methods for evaluating the reliability of the power system. Assessing the consequences, the accuracy of the analytical method is higher in the process of application, but with the expansion of the power system scale, the number of states analyzed is increasing, which is not suitable for the reliability assessment of large-scale power systems. Monte Carlo In the actual application process of Lofa, its calculation accuracy is not affected by the scale of the power system, but because it is unavoidable to sample the zero-fault state space, a large number of sampling points will fall in the fault-free area, which will lead to the improvement of system reliability. Sampling efficiency degradation occurs
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[0020] In order to make the objects, technical solutions, and advantages of the present disclosure more apparent, exemplary embodiments according to the present disclosure will be described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present disclosure, rather than all the embodiments of the present disclosure, and it should be understood that the present disclosure is not limited by the exemplary embodiments described here. Based on the embodiments of the present disclosure described in the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present disclosure.
[0021] The technical solution adopted by the present invention is specifically: a method for evaluating the reliability of power systems based on the improved Monte Carlo method, please refer to figure 1 , figure 1 A flow char...
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According to a power system reliability evaluation method based on an improved Monte Carlo method, fault sets are classified, all possible fault states of a system are theoretically and completely considered, the fault states are divided into two subsets of sorting faults and sampling faults, the sizes of the two subsets are divided by changing the set value, and the optimal methods are respectively selected for consideration. The method can flexibly allocate the size of each fault set, the sampling frequency of each fault state is optimally allocated in the sampling process, the efficiency waste of zero fault area sampling is avoided, and when the system reliability is improved, a sampling degradation phenomenon is avoided, and the evaluation efficiency can be effectively improved.
Description
technical field [0001] The patent of the present invention relates to the field of power system reliability assessment, especially a power system reliability assessment method based on the improved Monte Carlo method. Background technique [0002] The power system is an important infrastructure that provides power sources for industrial production and people's lives to ensure the rapid development of the national economy and the normal life of the people. With the rapid development of industrial production and the continuous improvement of people's lives, the reliable operation of the power system is guaranteed. Reliability and ensuring the power quality of the power system have become the main requirements of people for the power system in the new era. The reliability of the power system mainly refers to the ability of the power system to continuously deliver high-quality power to users and ensure that it can meet the demand under normal operation. The comprehensive ability o...
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IPC IPC(8): G06Q10/06G06K9/62G06Q50/06
CPCG06Q10/06393G06Q50/06G06F18/2415G06F18/214
Inventor 杜金其孙继泽甘仁民商曾甘怡红
Owner 杜金其