Multifunctional frequency converter test platform and test method thereof

Abstract

The invention discloses a multifunctional frequency converter test platform and a test method thereof. The method comprises the following steps: (1) determining a main loop structure and a control method of a designed frequency converter; (2) verifying the correctness of the main loop structure design and the control method through software simulation; (3) verifying the correctness of a real control program and a main loop principle prototype through a semi-physical simulation test; (IV) combining a real main loop prototype obtained through the verification of the semi-physical simulation test with the main control board, and carrying out a whole machine debugging test; the platform is composed of a simulation experiment platform, a semi-physical simulation experiment platform and a real prototype debugging experiment platform. Safety of the frequency converter debugging process is guaranteed, and the frequency converter debugging test research and development efficiency is improved; pure software simulation, semi-physical simulation and complete machine debugging are realized, and the test research and development progress of the frequency converter can be improved by utilizing the test method.

Description

technical field [0001] The invention belongs to the field of frequency converter debugging, in particular to a multifunctional frequency converter test platform and a test method thereof. Background technique [0002] In the debugging stage of the inverter prototype, the control system hardware circuit, software program, and main circuit devices all lack in-depth verification, the probability of problems is high, and it is difficult to analyze and solve problems. When the prototype model is changed or the control strategy is changed, it is necessary to redesign the prototype and increase the development cost; when the components are damaged during the debugging process, the components need to be replaced, which consumes a lot of development time; the test is carried out under strong electricity, and electric shock may occur. and other dangers, and may also cause safety accidents due to overvoltage or overheating of power devices. The traditional software simulation method c...

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Problems solved by technology

[0002] In the debugging stage of the inverter prototype, the hardware circuit, software program, and main circuit components of the control system lack in-depth verification, the probability of problems is high, and it is very difficult to analyze and solve problems

When the prototype model is changed or the control strategy is changed, the prototype needs to be redesigned, which increases the development cost; when the components are damaged during the debugging process, the components need to be replaced, which consumes a lot of development time; the test is carried out under strong current, and electric shock may occur and other dangers, and may also cause safety accidents due to overvoltage or overheating of power devices

The traditional software simulation method can realize the verification of the basic principle of the inverter and the system control strategy, but it cannot verify the real program code in the controller and the hardware structure design of the main loop, which makes the safety of the real prototype development not guaranteed and the efficiency is not high

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