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Method for automatically tracing maximal power based on switch magnetic resistance wind power generating system

A wind power generation system and switched reluctance technology, which is applied in the direction of controlling generators through magnetic field changes, to achieve the effects of high wind energy utilization efficiency, flexible control and system cost reduction

Active Publication Date: 2012-04-25
SHANDONG KEHUI POWER AUTOMATION
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is: to overcome the defects of the existing switched reluctance wind power generation system, and propose a switched reluctance wind power generation system based on switched reluctance wind power generation system that can be used on site without installing a wind speed measuring device and without knowing the mechanical characteristics of the wind turbine. Automatic Maximum Power Tracking Method

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  • Method for automatically tracing maximal power based on switch magnetic resistance wind power generating system
  • Method for automatically tracing maximal power based on switch magnetic resistance wind power generating system
  • Method for automatically tracing maximal power based on switch magnetic resistance wind power generating system

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Embodiment Construction

[0024] Attached below figure 1 The maximum power automatic tracking method based on the switched reluctance wind power generation system of the present invention will be further described.

[0025] refer to figure 1 :

[0026] The switched reluctance wind power generation system of the present invention is composed of a wind turbine 1 , a switched reluctance generator 2 , a switched reluctance controller 3 , a current sensor 4 , a voltage sensor 5 , and a bus filter capacitor 6 . The blades of the wind turbine 1 directly drive a switched reluctance generator (SRG) 2 , and generate electricity under the control of a switched reluctance controller 3 . At the same time, the switched reluctance controller 3 detects the signals of the bus current sensor 4 and the bus voltage sensor 5, and calculates the output power of the switched reluctance generator (SRG) 2. The current sensor 4 and the voltage sensor 5 should be installed between the bus filter capacitor 6 and the load betwe...

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Abstract

The invention relates to a method for automatically tracing maximal power based on a switch magnetic resistance wind power generating system, which belongs to the field of wind power generation. The method comprises the following steps: a switch magnetic resistance controller injects disturbing quantity delta i into the exciting current of a switch magnetic resistance generator by changing an exciting current value and respectively detects the voltage and a current signal of an output bus by a voltage and current sensor arranged on the bus; and the switch magnetic resistance controller calculates the output power of the switch magnetic resistance generator by a voltage and current signal and automatically adjusts the disturbing quantity delta i of the exciting current according to the output power change and the rotating speed change of the generator so that the output power of the generator is always stabilized on a maximal value. The invention can trace the wind speed change and output the maximal power without additionally mounting a wind speed measuring device in the switch magnetic resistance wind power generating system and clearly learning the parameters of a wind turbine, such as mechanical characteristics, and the like.

Description

technical field [0001] The invention relates to a maximum power tracking control method based on a switched reluctance wind power generation system. It belongs to the field of wind power generation. [0002] In particular, the invention relates to a maximum power tracking control method based on a switched reluctance wind power generation system using a switched reluctance controller to perform disturbance control on the excitation current of a switched reluctance generator. [0003] In particular, the invention relates to a tracking method for automatically realizing the maximum power output without knowing the mechanical characteristics of the wind turbine based on the switched reluctance wind power generation system. Background technique [0004] Due to environmental and energy problems, wind power technology has developed rapidly in recent years, and the cost has also shown a downward trend year by year. Considering the cost of pollution control, the cost of wind power...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P9/14
Inventor 熊立新徐丙垠
Owner SHANDONG KEHUI POWER AUTOMATION
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