Testing device and method of power electronic control system

Abstract

The invention relates to testing device and method of a power electronic control system and belongs to the technical field of semi-physical simulation technology and power electronic control. The testing device comprises a data acquisition card, a PWM (pulse-width modulation) wave generating circuit, a data acquisition circuit, a PC (personal computer) and a power electronic circuit. A controller module, an optimization algorithm module and communication protocol are installed in the PC. The controller module is used for regulating and controlling the power electronic circuit online. Testing is performed to an actual power electronic system, online debugging, modifying and evaluating of the controller module are achieved, parameters of the controller module are optimized, and instantaneity and practicability of the controller module is guaranteed. A semi-physical simulation device is applicable to self-regulated learning of college students and learning of practical application of theories, is also applicable to theory proving researches of technicians and evaluation of actual engineering proposals, and provides a deep research platform combining practical application for developing debugging control algorithm.

Description

technical field [0001] The invention belongs to the field of semi-physical simulation technology and power electronic control technology, and in particular relates to an experimental device and an experimental method for a power electronic control system. Background technique [0002] Traditional control system design generally includes steps such as system modeling, algorithm design, software and hardware design, and performance testing, involving control theory, electromechanical technology, software development, circuit design, and other fields. [0003] First of all, the traditional design method means that designers should not only be good at software programming and error checking, but also be proficient in hardware design; for the development unit, it will not only increase the investment cost, but also lead to a long development cycle. Because, for this kind of development process, the controller is generally practical, such as DSP, FPGA, etc. Once the designed contr...

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Problems solved by technology

[0008] Second, for the experimental devices of power electronics courses in various colleges and universities, the control algorithm program is directly solidified on the controller. Students can only watch the control results of the algorithm, and cannot design the control algorithm by hand and verify it through actual system experiments. The analysis and processing of experimental data in an environment that severely limits the cultivation and improvement of the hands-on ability and innovation ability of college students

[0009] In this regard, in terms of hardware-in-the-loop simulation, although the dSPACE (digital Signal Processing And Control Engineering) real-time simulation system of the German dSPACE company has appeared, the RTDS (Real Time Digital Simulator) real-time digital simulator developed and manufactured by the Canadian Manitoba RTDS company etc., but these results are not aimed at power electronic control systems and cannot be used for research on power electronic control systems

However, the existing report "FPGA-based power electronic system hardware-in-the-loop simulation platform" only uses FPGA as the controller to control the power electronic system, and fails to realize the design of the control method of the power electronic system controller and the modification of the controller parameters. , online optimization of controller parameters, and comparison of several control strategies

Moreover, the current inventions of related hardware-in-the-loop simulation devices all use the actual controlled object as the simulation part, and the controller as the physical part, so the research on the controller of the power electronic system still has great limitations.

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