Wind power generator control system based on PID control

Abstract

The invention discloses a wind power generator control system based on PID control, and the system comprises a wind power generator controller for controlling the working state of a wind power generator; a temperature sensor which is used for measuring in-situ temperature, wherein the temperature sensor is a non-contact type temperature sensor, and is disposed on a stator winding of the wind power generator; a humidity sensor which is used for measuring in-situ humidity, wherein the humidity sensor is a lithium chloride humidity sensor, and the lithium chloride humidity sensor is disposed on the stator winding or a rotor winding of the wind power generator; a PID controller, wherein the output terminal of the temperature sensor is electrically connected with the input terminal of the PID controller through an analog-digital converter, the output terminal of the PID controller is electrically connected with the control terminal of the wind power generator controller, and the I / O terminal of the PID controller is electrically connected with a GSM communication module. When the temperature and humidity exceed the threshold values, the system can timely turn off the wind power generator.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a PID control-based wind power generator control system. Background technique [0002] In recent years, with the rapid development of social industry, the demand for energy is increasing. Since traditional energy sources, such as coal, oil, and natural gas, are non-renewable energy sources, energy issues have become increasingly tense; looking for new energy sources play a pivotal role in human development. [0003] As we all know, wind power is to convert the kinetic energy of wind into electrical energy. As a clean and renewable energy, wind energy has been paid more and more attention by countries all over the world. Its reserves are huge. The global wind energy is about 2.74×10^9MW, of which the usable wind energy is 2×10^7MW, which is 10 times larger than the total amount of water energy that can be developed and utilized on the earth. The wind has been used...

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Problems solved by technology

[0004] Through long-term practice, it has been found that wind power generators mainly rely on wind power to generate electricity. Therefore, wind power generators generally need to be built in open places with relatively rich wind energy resources. Therefore, extreme weather such as hurricanes or heavy rains often occurs; and once the above-mentioned extreme weather occurs, short-circuit accidents often occur in the stator winding or mover winding of the generator; when a short-circuit accident occurs, the The temperature of the stator winding or the mover winding will rise sharply, therefore, it is particularly important to design and develop a wind turbine control system based on PID control with a higher safety factor

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