Doubly-fed fan optimization method based on proportional integral differential control thought

Abstract

The invention provides a doubly-fed fan optimization method based on a proportional integral differential control thought, which aims to optimize control parameters of the existing doubly-fed wind power generation system and complete maximum power point tracking, so that the economical efficiency and safety of system operation are optimal. The optimization method based on the proportional integraldifferential control thought comprises a proportional-integral-derivative optimization method, a fractional-order proportional-integral-derivative optimization method, an active disturbance rejectionoptimization method and a fractional-order active disturbance rejection optimization method. The methods can optimize proportional-integral controller parameters in a control system to enable the deviation value to be minimum, improve the controller response time and improve the control precision. The optimization method based on the control thought and the classic structure of the doubly-fed fanare integrated, and controller parameters are optimized through the optimization method based on the control thought, so that the control deviation of the system is minimum, and an operation curve isapproximate to a maximum power curve.

Description

technical field [0001] The invention belongs to the field of renewable energy power generation in power systems, relates to a class of optimization methods, and is suitable for parameter optimization of double-fed wind turbines in power systems. Background technique [0002] The concept of energy crisis has been deeply rooted in the hearts of the people, and it is the common wish of people all over the world to find new energy sources for sustainable development. At present, in most parts of the world, clean energy such as wind energy, solar energy, and tidal energy are only supplements to traditional fossil energy, and have not completely replaced fossil energy. The reasons are that new energy sources have higher requirements on the environment, and some technologies are immature. However, with the rapid growth of the global economy and the increasing population, the demand for energy per capita has greatly increased. This provides an opportunity for sustainable developme...

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Problems solved by technology

However, due to the existence of components such as brushes and gearboxes in double-fed motors, the probability of failure will increase, so the control strategy of double-fed motors is particularly important.

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