Fault simulation experiment table for step-up drive system of wind-driven generator set

Abstract

The invention discloses a fault simulation experiment table for a step-up drive system of a wind-driven generator set, which consists of two parts, i.e. a power source and fault simulation. The power source consists of a frequency converter, a variable-frequency motor and a speed reducer and is used for simulating the input rotation speed of an impeller rotor when the wind-driven generator set runs, and the fault simulation consists of a primary planetary gear step-up box, a secondary parallel shaft gear step-up box and a magnetic powder brake and is used for simulating a one-gear two-parallel-shaft gear step-up drive system and a dynamic load of the wind-driven generator set. Through the experiment table, the single and compound faults of components, i.e. a planetary wheel, a sun wheel and a bearing of a planetary step-up part as well as a gear, a bearing and the like of a parallel shaft step-up part in the step-up drive system of the wind-driven generator set can be simulated; the fault simulation experiment table for the step-up drive system of the wind-driven generator set can be used for researching the fault modeling and damage evolution mechanism of the step-up box of the wind-driven generator set and searching a characteristic extracting method of a vibrating signal under a variable load and a variable speed; the theoretical support and the technical support are supplied for the state monitoring of the wind-driven generator set; and the safe running of the wind-driven generator set is guaranteed.

Description

technical field [0001] The invention relates to the technical field of mechanical transmission system fault simulation experiments, in particular to a fault simulation device of a wind turbine speed-increasing transmission system. Background technique [0002] Wind power generation has the advantages of low carbon, environmental protection and renewable resources, and has been highly valued by countries all over the world. my country's wind power generation has developed rapidly. In 2010, my country's newly installed wind power capacity reached 18,927.99MW, and the cumulative installed capacity reached 44,733.29MW, ranking first in the world. As the key equipment for wind power generation, wind turbines have high degree of automation, high price, complex structure, harsh operating environment, and high clearance of the engine room. A 1.5MW large-scale wind turbine on land has a tower height of about 70m and a gearbox weight of about 15t. If the gearbox fails, the cost of di...

AI Technical Summary

Problems solved by technology

However, some existing fault simulation devices for mechanical transmission systems seldom involve gear speed-up transmission, let alone planetary gear speed-up.

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