Double-fed wind power generation set physical simulation platform based on Compact RIO

Abstract

The invention discloses a double-fed wind power generation set physical simulation platform based on a Compact RIO. The double-fed wind power generation set physical simulation platform comprises a wind machine simulating device, a double-fed generator, a grid connection switch, a voltage drop generator, a back-to-back converter, a Crowbar protection circuit, an absolute value encoder, a Compact RIO controller and a monitoring computer; the components are connected to form a working loop of the double-fed wind power generation set physical simulation platform. The double-fed wind power generation set physical simulation platform has the high-speed and real-time operation and control capacity of a wind power generation simulation system, and can meet the requirement of the continuously-improved complexity of a control algorithm of a wind power generation system; in addition, the double-fed wind power generation set physical simulation platform is compact in structure, convenient to maintain and particularly suitable for a researcher without hardware code programming experience to conveniently conduct physical simulation test studying of related tasks, and therefore the applicability of various wind power generation control algorithm theories in practical physical models is verified; the double-fed wind power generation set physical simulation platform is of great significance in wind power generation studying.

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...

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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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