Power system dynamic safety assessment method based on relation exploration and regression tree
A power system, dynamic security technology, applied in the fields of instruments, character and pattern recognition, data processing applications, etc., can solve the problems of not considering various influencing factors, long learning and training time, difficult to apply, etc., to achieve high evaluation accuracy and The effect of calculating speed, reducing computational burden, and improving accuracy
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[0114] Example: The example used in the present invention is based on the actual 1648 node system provided by the power system commercial simulation software PSS / E. The system includes 1648 nodes, 313 generators, 182 reactive power devices, 2294 transmission lines and other system elements. This test includes all the steps described in the method of the present invention. The test is carried out on a computer equipped with an Intel Core i7 processor and 8GB of memory, and the test results are obtained. A total of 15,303 samples were obtained in the test, including 37,439 operating variables involved in the present invention. The top 0.1% variables in the MIC value are selected to construct a sample set, of which 85% are used for training, and the rest are used to test the performance of the method of the present invention. using R 2 and RMSE to evaluate the regression prediction performance, the calculation formula is as follows:
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[0117] In the form...
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