Research On Wind Power Hardware-in-the-loop Simulation System And Distributed Cooperative Control Of Wind Power Cluster

Nowadays,with an increasingly awareness of energy shortage and other relative issues,the wind energy,as a clean renewable energy,is developing rapidly.Researches of the wind power technology are also deepening,especially in the field of the digital simulation technology of wind power system.However,there are few researches on the hardware-in-the-loop simulation of wind power system,And the power balance and the power distribution among distributed power supplies are very complex.Firstly,this paper outlines the status of wind power,and shows the importance of research on wind power.Then the structure of wind power generation system is introduced,and the performance of Double-Fed Induction Generator and permanent magnet synchronous motor is compared.At last,we choose the permanent magnet synchronous wind power generation system as the research object of this paper.In this paper,the working principle and control strategy of the wind turbine are introduced.The permanent magnet synchronous motor,the wind turbine,permanent magnet synchronous generator and converter model are established by studying the working principle of wind turbine.Finally,we choose the variable pitch control as the control method of wind turbine,and choose the double closed loop control as the control of grid-connected inverter.Then we establish the hardware-in-the-loop simulation platform and validates it's effectiveness.First of all,DSP controller and related modules are selected,and we draw the circuit schematic.Secondly,the software design method of DSP and RT-LAB is proposed.Moreover,the hardware-in-the-loop simulation of the wind power system is carried out on the hardware-in-the-loop simulation platform.Based on the control of the single wind power system,this paper presents a distributed control method of wind power cluster.Then,via the theory of graph theory and nonlinear integrator,a power distribution and balance strategy of wind power cluster is proposed in this paper,which is based on the theory of finite time consistent convergence.Finally,we conduct the control simulation in Matlab/Simulink environment,which verifies the effectiveness of the proposed method.