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Multi-target high-dimensional multi-fractional-order optimization method for doubly-fed fan parameters

A double-fed fan and optimization method technology, applied in the direction of AC network circuit, electrical components, single-network parallel feeding arrangement, etc., can solve the problems of the subjectivity of decision-makers and the objectivity of the results, and achieve the objectivity of controller parameters , the effect of reducing subjectivity

Active Publication Date: 2021-07-09
GUANGXI UNIV
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Problems solved by technology

The single-objective intelligent optimization method can be used for controller parameter tuning, and each single objective is weighted according to the importance, but it is easily affected by the subjectivity of the decision maker and affects the objectivity of the results

Method used

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  • Multi-target high-dimensional multi-fractional-order optimization method for doubly-fed fan parameters
  • Multi-target high-dimensional multi-fractional-order optimization method for doubly-fed fan parameters
  • Multi-target high-dimensional multi-fractional-order optimization method for doubly-fed fan parameters

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Embodiment Construction

[0053] The present invention proposes a multi-objective high-dimensional multi-fractional optimization method for double-fed fan parameters, which is described in detail in conjunction with the accompanying drawings as follows:

[0054] figure 1 It is a graph of the relationship between the wind energy utilization coefficient of the wind turbine and the blade tip speed ratio and the pitch angle according to the method of the present invention. The change of wind energy utilization coefficient is related to the blade tip speed ratio and pitch angle. When the wind flows through the wind turbine, the wind drives the fan blades to move, and the fan blades are connected to the shaft system to drive the rotor of the induction motor to rotate. The wind turbine is the prime mover in the double-fed wind power generation system, which can realize energy conversion. In the process of energy conversion, the energy utilized is less than the energy blown through the blades of the wind turb...

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Abstract

The invention provides a multi-target high-dimensional multi-fractional-order optimization method for doubly-fed fan parameters. The method can optimize the parameters of a rotor-side converter controller in the doubly-fed fan, find a benefit balance point between reactive errors and rotor speed deviation, and coordinate the relation between target functions. According to the method provided by the invention, multi-dimensional information data of a high-dimensional multi-fractional order controller is introduced, and fractional order analysis calculation is carried out on the information data of each dimension; according to the method provided by the invention, a control theory is applied to an optimization method so that an iteration speed is accelerated; and the method provided by the invention comprises an exploration search part and a development search part. According to the method provided by the invention, an order operator is introduced, automatic adjustment is carried out in an optimization process, two search parts of exploration and development are balanced, and the global search capability is improved; and maximum power point tracking and low voltage ride through of the doubly-fed fan are realized.

Description

technical field [0001] The invention belongs to the control field of wind power generation, and relates to an optimization method for parameter setting of a controller, which is suitable for tracking the maximum wind energy in a double-fed wind power generation system. Background technique [0002] Fossil energy reserves are limited and non-renewable, while my country's main energy structure is coal-based, the use of coal will cause air pollution, a large amount of CO emissions 2 It will lead to global warming, and adjusting my country's energy structure has become an urgent task. The reserves of wind energy are large, and the technology of wind power generation is becoming more and more perfect. Wind power generation has become one of the most potential forms of new energy power generation. Double-fed wind turbine is a variable-speed constant-frequency generator, which has the advantages of high speed, light weight, low cost, low converter rated capacity, and high energy c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38
CPCH02J3/381H02J2300/28H02J2203/20Y02E10/72
Inventor 殷林飞陈立春苏志鹏高放
Owner GUANGXI UNIV
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