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Modeling and simulation method for doubly-fed variable speed constant frequency wind generation set system

A wind turbine, variable speed and constant frequency technology, applied in the fields of electrical digital data processing, instruments, calculations, etc., can solve problems such as unsuitable simulation

Inactive Publication Date: 2013-04-10
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
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Problems solved by technology

In addition, PSCAD / EMTDC can also establish the electromagnetic transient model of the fan, and the modeling accuracy can reach the device level, so it is an ideal tool for investigating the dynamic characteristics of the fan stand-alone system under various working conditions and faults, but it is not suitable for the connection of the fan Simulation after the big net

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  • Modeling and simulation method for doubly-fed variable speed constant frequency wind generation set system
  • Modeling and simulation method for doubly-fed variable speed constant frequency wind generation set system
  • Modeling and simulation method for doubly-fed variable speed constant frequency wind generation set system

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Embodiment Construction

[0051] In order to better understand the above technical solutions of the present invention, a further detailed description will be given below in conjunction with the drawings and embodiments.

[0052] figure 2 It is a structural schematic diagram of a double-fed variable-speed constant-frequency wind turbine model. The wind turbine includes a prime mover module 100 composed of a wind turbine model 110, a shafting model 120, and a pitch control system 130, and is controlled by an induction generator model 210 and a rotor-side inverter. The doubly-fed wind turbine module composed of the protection system 220 and the grid-side inverter control system (not shown in the figure).

[0053] The doubly-fed variable-speed constant-frequency wind turbine can realize the following functions through its control system: control the reactive power exchange between the generator and the grid, control the active power generated by the wind turbine to track the optimal operating point of the...

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Abstract

The invention discloses a modeling and simulation method for a doubly-fed variable speed constant frequency wind generation set system, and relates to a wind power generation system, in particular to a method for performing modeling analysis on a doubly-fed wind generation set system by using a computer program. The method comprises the following steps of: establishing a wind power model to simulate wind power absorbed by a wind-driven generator; establishing a wind-driven generator shaft model; establishing a blade pitch control system model; establishing an electrical simulation model for a doubly-fed asynchronous induction motor; establishing a power grid side frequency converter and rotor side frequency converter controller model; establishing a doubly-fed wind-driven generator one machine infinite bus system model by using the wind generation set simulation models; and setting the simulation running working condition and the failure state of the wind generation set system, and performing electromagnetic transient simulation, electromechanical transient simulation and failure simulation. Detailed models in line with physical characteristics of a doubly-fed variable speed constant frequency wind generation set are established for the electromagnetic transient simulation and the electromechanical transient simulation, and dynamic characteristics of the wind-driven generator under various failure and working conditions can be inspected to make the simulation of the wind-driven generator in a large-scale power grid possible.

Description

technical field [0001] The invention relates to a wind power generation system, in particular to a method for modeling and analyzing a doubly-fed wind power generating set system by using a computer program. Background technique [0002] Since the 1980s, the application of wind power generation has attracted more and more attention from all over the world. With the rapid development of science and technology, especially the application of aerodynamics, cutting-edge aerospace technology and high-power power electronics technology to the development and development of new wind turbines, wind power has made great progress in the past two decades. Today's wind power generation is gradually moving toward scale and industrialization, and the proportion of wind power generation in the power grid is increasing, becoming the most mature and realistic clean energy power generation method besides hydropower generation. Vigorously developing wind power generation is of great significan...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 冯煜尧杨增辉郭强
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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