Test device and method for testing wind turbine generator speed measurement module

Abstract

The invention discloses a testing device and method for detecting generator speed measurement modules of a wind turbine generator system. The testing device comprises a main MCU (Micro Controller Unit), a power module, an instruction input module, a display module, a first output circuit for outputting pulse signals, and a first detection circuit for receiving and converting analog signals, wherein the power module, the instruction input module, the display module, the first output circuit and the first detection circuit are connected with the main MCU. The testing device also can be provided with a second output circuit for outputting sine wave pulse signals and a second detection circuit for receiving the pulse signals. The testing method is characterized in that the input end and the output end of the generator speed measurement modules are correspondingly connected with the output circuits and the detection circuits of the testing device, the different generator speed measurement modules are effectively tested, module fault analysis is facilitated, manual calibration is adopted for assistance, and therefore the control accuracy of the wind turbine generator system is improved.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a test device and a method for testing a generator rotation speed measurement module of a wind power generating set. Background technique [0002] At present, the number of wind power generating units installed and used in our country is already considerable. In the process of processing the unit power curve, cases of poor unit power curve and power generation problems due to the error of the unit power measurement module also frequently appeared. For every 0.1rpm deviation between the Gspeed module and the real speed in the unit configured with water-cooled converters, the generating power of the unit will be affected by about 10kW; The power generation will be affected by about 15kW. Since the speed module is composed of discrete analog electronic components, with the extension of use time and the influence of temperature, the characteristics of the capacitive components i...

AI Technical Summary

Problems solved by technology

Since the speed module is composed of discrete analog electronic components, with the extension of use time and the influence of temperature, the characteristics of the capacitive components in the circuit will change, and errors will occur in the speed measurement

For example, the Gspeed module and OverSpeed ​​module in the Goldwind GW1500 unit will have speed measurement errors with the extension of use time and the influence of temperature

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