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A simulation optimization method for grid-connected inverter operating parameters

A technology of operating parameters and optimization methods, applied to instruments, simulators, control/regulation systems, etc., can solve problems such as time-consuming, complicated testing process, and low efficiency

Active Publication Date: 2022-04-05
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The existing photovoltaic grid-connected inverter in-the-loop simulation platform needs to manually change the parameters many times, perform half-in-the-loop simulations step by step, save and analyze data many times, and the whole process will consume a lot of time
[0005] 2. On the existing grid-connected standard test platform, the control strategy needs to be tested for active power control, reactive power control, fault ride-through control, operation adaptability, anti-islanding protection, etc. The test process is complicated and the test environment is changeable, requiring multiple tests Modifying the model and electrical parameters is also a time-consuming and inefficient process

Method used

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  • A simulation optimization method for grid-connected inverter operating parameters
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Embodiment Construction

[0036] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0037] The invention provides a method for simulating and optimizing the operating parameters of a grid-connected inverter. First, a simulation model of the grid-connected inverter is constructed based on a Simulink simulation platform, and then the simulation model of the grid-connected inverter is converted into an RT-LAB environment. By running the grid-connected inverter simulation model, the operating parameters of the grid-connected inverter are simulated and tested, and the operating parameters are optimized through the control system.

[0038] The control system includes a host computer and a controller DSP, and the host computer and the controller DSP are connected through an emulator.

[0039] The operating parameters during the operation of the grid-connected inverter include control parameters and environmental para...

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Abstract

The invention discloses a method for simulating and optimizing the operating parameters of a grid-connected inverter, which belongs to the field of simulating testing. The simulation optimization method has been improved for the problems of cumbersome operation steps and low efficiency of debugging parameters in the hardware-in-the-loop simulation system. The present invention proposes a simulation optimization method for operating parameters of a grid-connected inverter. The simulation optimization method can automatically simulate and test the grid-connected inverter under different control parameters and different environmental parameters. The operation of the inverter under different conditions The situation can be output with one key, and the optimal control parameters can be found at a glance.

Description

technical field [0001] The invention relates to the field of simulation testing, in particular to a simulation optimization method for operating parameters of a grid-connected inverter. Background technique [0002] Power electronic systems are very complex, and have nonlinear and time-varying characteristics, so their design and analysis are difficult. Generally, some simulation tools are needed to assist product design in order to shorten the development cycle, reduce development costs and improve reliability. sex. As an important simulation form, semi-physical real-time simulation generally has two methods: "actual controller + virtual object" and "virtual controller + actual object", which are mainly used in the development process of power electronic system controller software. At present, in the process of developing power electronic systems using the RTLAB simulation platform, most of the RTLAB platform is used to load the main topology and electrical environment, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 李飞葛晓露侯邦苧宋志远朱时羽
Owner HEFEI UNIV OF TECH
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