MATLAB风力发电并网逆变器控制系统的仿真研究

Research on Grid-Connected Inverter in control system of Wind Power
Abstract：Direct-driven wind generation system is considered to be an important research direction in wind generation technology area due to its superiorities of being gearless，no slip rings and brushes， flexible power control ability,etc.
In this paper，choosing PWM Rectifier as motor-side converter, selecting Voltage source PWM inverter as grid-side converter，based on reading a lot of relevant literature and on the basis of relevant industry standards, and then building a 380V wind power grid system, And discusses the control strategy of inverter circuit. 源自\$六l维,论:文w网)加7位QQ3249^114 www.lwfree.cn
The article first comparative analysised the common double-fed and direct-drive wind power System topology, described its advantages and disadvantages of the corresponding control strategy. Aim at the selected topology of topic, choosing SVPWM as grid-side inverter’s control strategy.  By the grid voltage oriented vector control, realizing the independent of d and q axis current control, thus controlling the system’s active and reactive power.
The work use MATLAB\Simulink and Power Electronics Warehouse SimPowerSystems to simulate SVPWM switching control method and power grid modular .Experimental results show that the proposed control method can achieve the expected results．
Keywords: wind power; SVPWM; Voltage source inverter

Abstract    i

1 绪论    1
1.1 课题背景及意义    1
1.2 国内外风电产业发展现状及发展趋势    1
1.3 我国风力发电产业所面临的问题    2
1.4 风力发电的并网方式    2
1.5 并网逆变器主要控制方法    3
2    风力发电系统的拓扑结构    5
2.1 常用风电拓扑结构    5
2.1.1 恒速恒频机组    5
2.1.2 变速恒频机组    6
2.2 直驱型风电机组的拓扑结构    8
2.2.1 不可控整流器后接直流电压变化的电压源型逆变器    8
2.2.2 不可控整流器后接直流侧电压稳定的PWM电压源型逆变器    9
2.2.3 PWM整流器后接电压源型PWM逆变器    10
2.2.4 不可控整流器后接电流源型逆变器    10
2.3 本章小结    11 源自\$六l维,论:文w网)加7位QQ3249^114 www.lwfree.cn
3    直驱型风力发电系统的控制策略    12
3.1 坐标变换    12 MATLAB风力发电并网逆变器控制系统的仿真研究:http://www.lwfree.cn/zidonghua/20180427/14304.html
------分隔线----------------------------