Variable-pitch controller for wind power generator

A technology of controller and pitch change, which is applied in the control of wind turbines, wind turbines, machines/engines, etc. It can solve the problems of unsatisfactory effects of wind turbine pitch controllers, achieve perfect functions, realize speed adjustment, reduce Effect of small mechanical stress

Inactive Publication Date: 2009-11-11
BAODING TIANWEI GRP CO LTD
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Problems solved by technology

However, the wind turbine pitch controllers in the

Method used

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  • Variable-pitch controller for wind power generator
  • Variable-pitch controller for wind power generator
  • Variable-pitch controller for wind power generator

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Embodiment Construction

[0022] see Figure 1 to Figure 12 , the pitch controller is mainly composed of TMS320LF2407 single-chip microcomputer, RS485, CAN communication and input / output signal circuit. The architecture of TMS320LF2407 is designed for real-time signal processing. LF2407 instruction cycle is 33ns (30MHz), on-chip 32K flash program memory, 1.5K word data / program RAM; two event management modules EVA and EVB; scalable external memory with a total of 192K words; watchdog timer module (WDT); 40 general-purpose input / output pins (GPIO) that can be individually programmed or multiplexed; Controller Area Network (CAN) 2.0 module, which can easily realize pitch control based on CAN bus.

[0023] The peripheral circuits in the pitch controller mainly include isolation and conditioning circuits for analog signals, isolation circuits for digital signals, isolation and drive circuits for communication interfaces, and the above circuits. Above-mentioned each peripheral circuit also can adopt prior...

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Abstract

The invention provides a variable-pitch controller for a wind power generator and relates to the technical field of the wind power generation device, which comprises a TMS320LF2407 single chip microcomputer (SCM) of which the interfaces are respectively connected with a switching-value isolated input circuit, an analog isolated conditioning circuit, a pulse value conditioning circuit, a serial communication protocol conversion circuit and a switching-value isolated output circuit which can be connected with a relay. The TMS320LF2407 SCM is connected with external control circuits by RS 485 serial ports and a CAN communication drive circuit which is connected with a main controller of the system. The switching-value isolated input circuit, the analog isolated conditioning circuit and the pulse value conditioning circuit are respectively connected with sensors. The invention also comprises relative software. The variable-pitch controller for a wind generator adjusts the power by controlling the change of the angel of attack of blades and realizes the starting, stopping and emergency treatment of the wind power generator by controlling the pitch angel and the speed, thus ensuring that the wind power generator is in good operation.

Description

technical field [0001] The invention relates to the technical field of wind power generation devices, in particular to a wind turbine pitch controller. Background technique [0002] The wind power generation system should be able to flexibly change the pitch to achieve speed regulation and power control, reduce the mechanical stress of the wind turbine and improve the operating state of the wind turbine. However, the wind turbine pitch controllers in the current wind power generation system are not ideal. Contents of the invention [0003] The purpose of the present invention is to provide a wind turbine pitch controller, which can capture wind energy flexibly and efficiently, reduce the mechanical stress of the wind turbine, not only realize speed regulation and power control, but also significantly improve the operating state of the wind turbine , which has the advantages of simple structure, convenient use, reliability and low cost. Especially suitable for large wind ...

Claims

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Application Information

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IPC IPC(8): F03D7/04
CPCY02E10/723Y02E10/72
Inventor 景崇友王淼赵双喜程志光王保利穆桂霞
Owner BAODING TIANWEI GRP CO LTD
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