Interface coupling circuit optimization design method and motor simulation test system

Abstract

The invention provides an interface coupling circuit optimization design method, which comprehensively considers the requirements of a motor simulator on harmonic suppression, design cost, system stability and the like to design interface circuit parameters, and utilizes a particle swarm optimization algorithm introduced with a fitness threshold mechanism (FTM) to calculate optimal parameter values, and has the advantages of high convergence speed, strong learning ability and high reliability, and the advantage of high electromagnetic simulation precision is fully utilized in the method. Cost is emphatically considered in optimization calculation, and it is guaranteed that the design result of circuit element parameters is more reasonable. The invention also provides a motor simulation test system which comprises the interface circuit element designed by the method, and further provides a physical implementation way capable of achieving the same beneficial effects.

Description

technical field [0001] The invention belongs to the technical field of motor simulators, in particular to an interface coupling circuit optimization design method and a motor simulation test system including the interface coupling circuit designed based on the method. Background technique [0002] The motor simulator uses digital simulation and power electronic devices to simulate the port characteristics of different types of motors under different working conditions, which can effectively solve the problems of test cost and safety of traditional mechanical motor test platforms. As an important part of the motor simulator, the interface coupling circuit mainly acts as a buffer between the motor controller and the motor simulator. On the one hand, it can suppress the current harmonics caused by the power electronic switch. The control variable and bandwidth determine the system stability and simulation accuracy to a large extent. However, in the prior art, there is little r...

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Problems solved by technology

However, in the prior art, there is little research on the parameter design of the interface coupling filter circuit in the motor simulator. At present, it mainly relies on engineering experience and trial-and-error methods, and there is still a lack of unified optimal design methods. There are widely steps in the design process Technical problems that are complex, have large randomness of results, and are difficult to obtain optimal parameters

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