AC exciting control system of double feed wind power generator based on DSP with secondary frequency modulation and its working method
A technology for wind turbines and secondary frequency regulation, applied in control systems, wind energy power generation, control generators, etc., can solve the problem that the traditional control system cannot automatically participate in the secondary frequency regulation task of the power system, the control performance is difficult to meet the requirements, and the hardware circuit is complex. and other problems, to achieve good adjustment performance and sensitivity, overcome control lag and accuracy defects, and simple hardware circuits.
Inactive Publication Date: 2009-01-28
TIANJIN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
The currently researched doubly-fed wind turbine AC excitation control system has shortcomings such as low sensitivity, poor anti-interference ability, poor real-time performance, complex hardware circuits, and low reliability; more importantly, the traditional control system cannot automatically participate in power generation. Secondary FM task of the system
Traditional control systems are difficult to meet the requirements of modern large-capacity wind turbines in terms of control performance
Method used
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Embodiment
[0026] Embodiment: a kind of doubly-fed type wind power generator AC excitation control system and working method thereof participating in secondary frequency regulation based on DSP (see figure 1 ), which is characterized in that it consists of five parts: a signal conditioning module, a central data processing module, a power tube drive module, a converter module, a state monitoring and fault handling module, and the input end of the said signal conditioning module is connected to the output of the converter module The output end of the signal conditioning module is connected with the input end of the central data processing module; the output end of the said central data processing module is connected with the input end of the power tube drive module, and is connected with the pitch of the wind turbine The control system and the control panel are bidirectionally connected; the output end of the power tube drive module is connected to each IGBT gate input end of the converter...
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This invention relates to an AC excitation control system of a wind power generator joining in the secondary frequency modulation based on DSP and its working method composed of a signal adjusting module, a central data process module, a power tube drive module, a converter module, a state monitor and a fault process module, which realizes high power factor output, utilizes resources of wind power to the utmost, stabilizes voltage of the end of the generator and increases quality of electric energy.
Description
(1) Technical field: [0001] The invention belongs to the technical field of AC excitation control of wind power generators, in particular to a DSP-based doubly-fed wind power generator AC excitation control system participating in secondary frequency modulation and a working method thereof. (two) background technology: [0002] With the rapid development of wind power generation, the single-unit capacity of wind turbines and the scale of wind farms are increasing day by day, and the power quality and power system stability problems caused by wind power injection have attracted increasing attention. The control system lacks the ability to adjust the frequency of the power system twice. One of the effective ways to solve the above problems is to develop a new type of wind turbine AC excitation control system. The currently researched doubly-fed wind turbine AC excitation control system has shortcomings such as low sensitivity, poor anti-interference ability, poor real-time per...
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IPC IPC(8): H02P9/04H02P9/14H02H7/06H02J3/38
CPCY02E10/763Y02E10/76
Inventor 周雪松张继东马幼捷王新志李显冰顾亚琴
Owner TIANJIN UNIVERSITY OF TECHNOLOGY