A physical simulation platform for doubly-fed wind turbines based on compactrio

Abstract

The invention discloses a physical simulation platform of a doubly-fed wind power generating set based on CompactRIO, including a wind power machine simulation device, a doubly-fed generator, a grid-connected switch, a voltage drop generator, a back-to-back converter, a crowbar protection circuit, and an absolute value code Controller, CompactRIO controller and monitoring computer; each component is connected separately to form a working loop of the physical simulation platform of the doubly-fed wind turbine. The physical simulation platform has the high-speed, real-time calculation and control capabilities of the wind power generation simulation system, can meet the requirements of increasing complexity of the control algorithm of the wind power generation system, and is compact in structure, easy to maintain, especially convenient for research without hardware code programming experience It is of great significance for the research of wind power generation to conduct physical simulation test research on related topics to verify the applicability of various wind power generation control algorithm theories in actual physical models.

Description

technical field [0001] The invention belongs to the field of wind power generation control, and relates to a physical simulation platform of a doubly-fed wind power generating set, in particular to a physical simulation platform of a doubly-fed wind power generating set based on CompactRIO. Background technique [0002] As the most important conversion form of wind energy, wind power has developed rapidly in recent years. However, a series of grid security problems caused by the inherent randomness, volatility and intermittency of wind power have also followed. Obviously, how to ensure the safe and stable operation of wind turbines under various working conditions and how to achieve fault ride-through in the case of grid failure is one of the important ways to solve the above problems. Around the above topics, researchers have proposed many new control algorithms. Although the control effects of these control algorithms have passed the digital simulation of the computer, the...

AI Technical Summary

Problems solved by technology

[0006] The doubly-fed wind turbine physical simulation platform represented by the above-mentioned patents generally uses DSP, single-chip microcomputer, PCC or PLC as the control core of the controller. Configuration, it is difficult for general theoretical researchers to complete algorithm programming or hardware reconfiguration in a short period of time; and although the code writing of the latter two is simple, its operation speed is difficult to meet the requirements of modern control algorithms

To sum up, the difficulty of field tests and the lack of physical simulation platforms are one of the main reasons why a large number of theoretical achievements only stay in the stage of digital simulation.

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