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Double-feed fan excitation control device and control method thereof

A technology of excitation control and double-fed fans, which is applied in the direction of controlling generators through magnetic field changes, and achieves the effects of reasonable design, completely practical structure and simple structure.

Active Publication Date: 2015-05-13
武汉华大电力自动技术有限责任公司
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Problems solved by technology

The wind power generation simulation test system built by simulation technology in the laboratory can realize the simulation of wind farms, wind turbines, wind power generators and their control systems. Grid technology, low voltage ride-through control technology, maximum wind power tracking technology, energy storage and control technology to suppress wind power fluctuations, etc. provide a very convenient research platform. The wind power generation system of the AC excitation doubly-fed wind turbine

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  • Double-feed fan excitation control device and control method thereof

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Embodiment

[0020] A doubly-fed fan excitation control device, including a wind characteristic simulation device, an AC excitation power generation device and a DSP control device respectively connected to the wind characteristic simulation device, the DSP control device is also connected with an excitation transformer device, the The excitation transformation device is connected with the AC excitation generator through an excitation transfer switch. The schematic diagram of the main circuit structure of the AC excitation doubly-fed wind power generation system is as follows: figure 1 shown. The stator of the doubly-fed generator is directly connected to the power frequency grid, while the rotor is connected to the grid through an AC-DC-AC system composed of back-to-back dual SPWM converters (grid-side converter and rotor-side converter) with bidirectional energy flow. Among them, the AC excitation double-fed wind turbine excitation control system is composed of back-to-back dual SPWM co...

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Abstract

The invention relates to a control device and a control method thereof, in particular to a double-feed fan excitation control device and a control method thereof. The double-feed fan excitation control device is characterized by comprising a wind power characteristic simulation device, and an AC excitation power generation device and a DSP (Digital Signal Processor) control device which are respectively connected with the wind power characteristic simulation device, an excitation potential device is also connected to the DSP control device, and the excitation potential device is connected with the AC excitation power generation device through an excitation conversion switch. Therefore, the double-feed fan excitation control device and the control method thereof disclosed by the invention have the advantages of reasonable design, simple design, complete practicability and capacities of being used for simulating a wind power generation system of a speed-variable constant-frequency AC excitation double-feed power generator and being used for teaching and scientific research.

Description

technical field [0001] The invention relates to a control device and a control method thereof, in particular to a double-fed fan excitation control device and a control method thereof. Background technique [0002] As an important renewable energy source, wind power is of great significance to alleviating the world's energy crisis and environmental degradation. At present, countries all over the world have invested a lot of manpower, material resources and financial resources to actively carry out research on wind power technology. The wind power generation simulation test system built by simulation technology in the laboratory can realize the simulation of wind farms, wind turbines, wind power generators and their control systems. Grid technology, low voltage ride-through control technology, maximum wind power tracking technology, energy storage and control technology to suppress wind power fluctuations, etc. provide a very convenient research platform. The wind power gen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P9/14
Inventor 陆继明
Owner 武汉华大电力自动技术有限责任公司
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