Fan control system adopting variable-structure PID (Proportion Integration Differentiation) variable-propeller control

Abstract

The invention discloses a fan control system adopting variable-structure PID variable-propeller control, which comprises a variable-propeller-pitch range computing module, a gust protection processing module, a rotating speed deviation filtering module, a segmented PID regulating module, a variable-propeller-pitch speed nonlinear factor computing module and an output control module. In the invention, the rotating speed of a generator is accurately controlled through the PID regulation for rotating speed deviation, and the fan control system has stable and reliable performance, can effectively improve the output power of a fan and has the advantages of excellent performance, safety and stability.

Description

technical field [0001] The invention relates to the field of variable-pitch wind power generators, in particular to a safe and reliable wind turbine control system with variable-structure PID pitch control applied to variable-pitch wind power generators. Background technique [0002] In recent years, with the rapid growth of my country's energy demand and the concept of sustainable development, wind power has become one of the main ways to obtain green energy, and has received strong support from the state. At present, my country's wind turbines are developing in the direction of large-scale megawatts. As the core technology that directly affects the safe and stable production of megawatts wind turbines, the pitch control algorithm mostly uses the classic PID (proportional-integral-derivative ) control algorithm, which is not perfect for signal acquisition and processing, the algorithm is relatively simple, the controlled generator speed fluctuates greatly, which is not condu...

AI Technical Summary

Problems solved by technology

At present, my country's wind turbines are developing in the direction of large-scale megawatts. As the core technology that directly affects the safe and stable production of megawatts wind turbines, the pitch control algorithm mostly uses the classic PID (proportional-integral-derivative ) control algorithm, which is not perfect for signal acquisition and processing, the algorithm is relatively simple, the controlled generator speed fluctuates greatly, which is not conducive to torque control, and in the case of strong winds and gusts, overspeed faults are prone to cause the fan to stop, affecting power generation efficiency

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