Distribution network overcurrent protection method with distributed power supply, and fixed value optimization method and system
A distributed power supply, protection fixed value technology, applied in the field of optimization systems, can solve problems such as no index calculation function, particle swarm algorithm falling into local optimal solution, and complicated programming
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[0147] use as image 3 The method shown for Figure 5 The example is simulated, wherein, the fixed value in the example is optimized by using the standard particle swarm optimization algorithm and the optimization algorithm proposed by the present invention respectively, and the optimization results are as shown in table 1:
[0148] Table 1 Comparison of optimization results
[0149]
[0150] As can be seen from the optimization results in Table 1, the method and system for overcurrent protection fixed value optimization method and system for distribution networks with distributed power sources used in the present invention are effective for all inverse time overcurrent relays in distribution networks with distributed power sources. The time setting coefficient and the starting current are optimized. Compared with the particle swarm algorithm, the improved particle swarm algorithm based on crowd search proposed by the present invention has a shorter fault duration, and the...
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