At present, the main research methods are Matlab/simulink and Ansoft maxwell. When modeling and simulating with Matlab/simulink software, there will be shortcomings in the simulation as the special structure of the model and material parameters cannot be set. The modeling and simulating with Ansoft maxwell has some limitations since it cannot build complex control circuit to achieve the response characteristics analysis. In order to improve engineering reliability and the authenticity of the simulation results. based on the introduction of the structure, working principle and the simulation research method of two-stage magnetic valve MCR, this paper introduces the novel method of combining Simplorer with Maxwell to realize the multi-physical domain simulation of the field road. The above shortcomings are made up. Thus, this method is used to analyze the harmonic characteristics and response characteristics of the two-stage magnetic valve MCR. It provides an experimental theoretical basis for designing a controllable reactor with better performance.
In this paper, a method for estimating the system harmonic impedance and harmonic emission level based on the pan-normal impedance cloud is presented. First of all, based on the basic principle of fluctuation method, it can be obtained that the key to estimate the system harmonic impedance is how to identify fluctuation ratio samples closer to the true value through theoretical analysis; Secondly, through the study of the probability distribution of fluctuation ratio, this paper proposes the characteristic of the pan-normal distribution meets the applicable conditions of normal cloud model, which can be used to calculate the digital features of impedance cloud by backward cloud generator; Finally, based on the "3En' Rules" of cloud model, the filtering threshold of impedance is determined, then the system harmonic impedance and harmonic emission level can be estimated by filtering qualified samples. It proves the accuracy and effectiveness of the proposed method by the simulation of theoretical model and calculation of practical engineering examples.International Conference on Civil, Transportation and Environment (ICCTE 2016)
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