An electrothermal ice-melting temperature monitoring system for wind turbine rotor blades

Abstract

The invention provides an electric heating ice melting temperature monitoring system of a rotor blade of a wind driven generator. The electric heating ice melting temperature monitoring system comprises blade monitoring terminals, a tower monitoring terminal and a control cabinet, wherein the blade monitoring terminals are fixed to the blade, and the tower monitoring terminal and the control cabinet are arranged at the bottom of a tower; the independent blade monitoring terminals are arranged on an SS surface and a PS surface of the blade respectively, and each blade monitoring terminal comprises a wireless data transmission chip, a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is fixed to the outer surface of the blade to monitor the temperature of the outer surface of the blade, and the second temperature sensor is fixed to a power supply line of an inner cavity of the blade to monitor the temperature of the power supply line; the tower monitoring terminal is arranged at the bottom of the tower and comprises a tower bottom temperature sensor for measuring the environment temperature and a tower bottom humidity sensor for measuring environment humidity; the tower monitoring terminal is connected with the control cabinet through a wired network, and the control cabinet is connected with a remote control terminal. Through the scheme, environmental parameters of a wind generating set and environmental parameters of the blade can be remotely monitored.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a monitoring system for electrothermal ice-melting temperature of rotor blades of a wind power generator. Background technique [0002] With the consumption of energy in the current society, the non-renewable energy is increasingly exhausted, so the utilization of renewable energy has always been the focus of the technological development of the current human society. Among clean energy sources, wind power and solar power have received the most attention. It is estimated that there are about 10 billion kilowatts of wind resources on the earth that can be used to generate electricity, which is almost 10 times the current hydropower generation in the world; and the energy obtained by burning coal in the world is only one-third of the energy that can be provided by wind power. one. Especially in western China, which is sparsely populated and rich in wind resources al...

AI Technical Summary

Problems solved by technology

[0004] 1. The physical shape of the blade changes due to icing, which reduces the blade's ability to withstand wind

Moreover, the balance of the blade group is destroyed, the weight of the blade increases, and the wear of the generator set increases, which not only affects the power generation of the generator set, but also has a great impact on the life and safety of the generator set.

[0005] 2. The blades are frozen to increase the weight of the blades, increase the load of the generator set, and increase the mechanical wear of the generator set

This will lead to inaccurate final results, which will easily affect the operation of the equipment

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