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An experimental simulation system of variable speed constant frequency dual feed wind generator

A doubly-fed generator and experimental simulation technology, applied in the direction of controlling generators, controlling generators, and control systems through magnetic field changes, can solve the problems of inconsistent characteristics of wind turbines, inability to truly simulate the operating characteristics of wind turbines, and affecting effects.

Inactive Publication Date: 2009-11-18
北京科诺伟业科技股份有限公司 +1
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Problems solved by technology

However, the characteristics of the DC motor or AC motor when dragging are inconsistent with the characteristics of the wind turbine, and the operating characteristics of the wind turbine cannot be truly simulated, thus affecting the effect of the experiment

Method used

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  • An experimental simulation system of variable speed constant frequency dual feed wind generator
  • An experimental simulation system of variable speed constant frequency dual feed wind generator
  • An experimental simulation system of variable speed constant frequency dual feed wind generator

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] figure 1 It is a schematic diagram of the strong current part of the experimental simulation system of the variable speed constant frequency doubly-fed generator, figure 1 The medium and high power part mainly includes: wind simulation controller 1, AC drive fan 2, doubly-fed generator 3, excitation converter 4, grid contactor 5. The specific connection method is: the fan analog controller 1 is connected to the AC drive motor 2; the AC drive motor 2 is connected to the rotating bearing of the doubly-fed generator 3; the rotor winding terminal of the doubly-fed generator 3 is connected to the excitation converter 4 , the excitation converter 4 adopts a dual-PWM three-phase full-bridge topology, which can realize the bidirectional flow of energy on the rotor side of the doubly-fed generator; the input side of the excitation converter 4 is...

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Abstract

A variable-speed constant-frequency doubly-fed generator experimental simulation system and an experimental method thereof. Including fan simulation controller [1], AC drive motor [2], DSP unit [6], power acquisition unit [7], speed measurement unit [8] and drive unit [9]. It simulates the characteristics of the fan, and uses the fan simulation controller [1] to control the operation of the AC drive motor [2]. The power generation experiment brings great convenience; the fan simulation controller [1] sets the starting speed and torque, which solves the starting problem of the experimental system. This kind of simulation system can set the torque-speed curve of different fans to simulate the operation of various fans conveniently. At the same time, the control process in the fan analog controller [1] adopts the feed-forward decoupling nonlinear control based on the rotor field orientation, which can greatly improve the dynamic performance of the system.

Description

technical field [0001] The invention relates to an experimental simulation system of a wind power generating set, in particular to an experimental simulation system of a variable-speed constant-frequency wind generating set adopting a double-fed generator. Background technique [0002] At present, among the main wind power generation technologies in the world, variable speed constant frequency wind power generation technology is the most optimized technology and will become the development direction of wind power generation technology. The core part of the variable speed constant frequency wind turbine control is the excitation control of the doubly-fed generator. Debugging excitation control of doubly-fed generators on the wind turbine simulation experiment platform is an important link in the development of wind turbines. There are many disadvantages in conducting experiments directly on the wind turbine. First, the wind turbine system is relatively complicated. In additi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P9/00H02P9/14G09B23/18
Inventor 赵栋利许洪华赵斌李亚西潘磊王宇龙邵桂萍
Owner 北京科诺伟业科技股份有限公司
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