Intelligent MPPT (maximum power point tracking) wind energy controller

A controller and intelligent technology, applied in the control of wind turbines, wind energy power generation, wind turbines, etc., can solve the problem of inability to effectively suppress system disturbances, and achieve the effect of suppressing system disturbances

Inactive Publication Date: 2012-05-30
HUIZHOU SANHUA IND
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] However, the above three methods more or less depend on the characteristics of the wind turbines

Method used

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  • Intelligent MPPT (maximum power point tracking) wind energy controller
  • Intelligent MPPT (maximum power point tracking) wind energy controller

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Embodiment

[0015] Such as figure 1 As shown, the intelligent MPPT wind energy controller includes a sliding mode extremum search module and a fuzzy parameter setting module, and adjusts the parameters of the sliding mode extremum search module according to the output of the fuzzy parameter setting module; the sliding mode extremum search module It includes a comparison unit, a switch unit and two integrators, and the fuzzy parameter tuning module includes a fuzzy controller;

[0016] The maximum power P1 of the wind power system generated by the sliding mode extreme value search module is used as a reference value, and the actual output power P2 of the wind power system is subtracted from the output power tracking error e by the comparison unit, and the switch unit is constructed according to the power tracking error e;

[0017] The switching unit includes a three-state switching function and a hard-limiting switching function. The output Z1 of the three-state switching function is integ...

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Abstract

The invention provides an intelligent type MPPT (maximum power point tracking) wind energy controller which comprises a slip form extremum search module and a blur parameter setting module, wherein the parameter of the slip form extremum search module is adjusted according to the output of the blur parameter setting module; the slip form extremum search module comprises a comparing unit, a switching unit and two integrators, and the blur parameter setting module comprises a fuzzy controller; and the parameter of the switching unit is set by the output of the fuzzy controller, and the input of the fuzzy controller is a power tracking error e and wind speed V of a wind power system. The wind energy controller provided by the invention can provide an optima rotation rate reference value for realizing maximize wind energy trapping of the wind power system, and can effectively restrain the neighbouring system disturbance of a maximum power.

Description

technical field [0001] The invention relates to the maximum power point centering (MPPT) control technology of sharp power generation, in particular to an intelligent MPPT wind energy controller. Background technique [0002] Wind energy is a complex, widely distributed, and extremely fast-growing renewable energy, and it also has large-scale development and commercial development prospects. However, wind energy is also a random, explosive, and unstable energy. Energy, in order to improve the utilization rate of wind energy, it is necessary to control the operation of the fan according to the change of wind speed to capture the maximum power. [0003] At present, the commonly used MPPT technologies include tip speed ratio control technology, power signal feedback control and hill-climbing method search control technology. [0004] However, the above three methods more or less depend on the characteristics of wind farms and wind turbines, and cannot effectively suppress syst...

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Application Information

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IPC IPC(8): F03D7/00
CPCY02E10/723Y02E10/72
Inventor 张世桐
Owner HUIZHOU SANHUA IND
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