Device and method for detecting wind power generation grid-connected system

Abstract

The invention provides a device for detecting a wind power generation grid-connected system. The device comprises a power generation unit, a storage battery unit, an inversion unit, a load simulation and simulated power grid unit control unit, a control unit and a detection unit, wherein the power generation unit comprises a wind driven generator and a fan switching-in controller; the inversion unit comprises an inverter and an inverter switching-in controller; the load simulation and simulated power grid unit comprises a load selector, a simulated load, a grid-connected switching-in controller and a simulated power grid; the control unit comprises a DSP (Digital Signal Processor), storage equipment and a communication module; the detection unit comprises a fan state detection mechanism and an electric performance detection mechanism; and the storage battery unit comprises a storage battery, a storage battery controller and a Boost circuit. A method provided by the invention is used for respectively detecting the island operation of a fan to be detected, the grid-connected operation of the fan to be detected and the working state of the inverter to be detected when a standard fan is in a grid-connected state, thereby realizing the detection of the fan or the inverter under a plurality of loads, meeting the requirements of switching among multiple fans or the inverters, and improving the detection efficiency and accuracy.

Description

technical field [0001] The invention belongs to the field of wind power generation and electrical technology, and in particular relates to a detection device and method for a wind power generation grid-connected system. Background technique [0002] The current fan detection system is in the process of fan operation, which realizes the collection, analysis, calculation of fan performance parameters and drawing performance curves of basic performance parameters, and the process of frequency conversion and speed regulation control of fan transmission by collecting preprocessed signals . Fan performance test is very important for the inspection of finished products and the design and development of new products, especially for large-scale, characteristic fans and single-piece, small-batch and special requirements for airflow characteristics, performance test is particularly important. At present, the performance testing of wind turbines in my country is mostly done manually, w...

AI Technical Summary

Problems solved by technology

At present, the performance testing of fans in my country is mostly done manually, which has disadvantages such as backward test methods, heavy labor and inaccurate test results.

In addition, the latest technology wind power generation detection mechanism developed at home and abroad cannot select the power generation system, but can only judge the fault of the power generation system when a fault occurs

At the same time, the detection tool can only detect the wind turbine and the inverter separately under a single load condition, and there is no way to detect the matching of the wind turbine and the inverter under various load working conditions

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