开关磁阻发电机(Switched Reluctance Generator,SRG)具有良好的电机本体特性,且发出直流电,适合用于风力发电且容易实现并网运行。提出一种新型开关磁阻风力发电并网系统整体控制策略,机侧SRG功率变换器采用基于励磁电流扰动控制法的...开关磁阻发电机(Switched Reluctance Generator,SRG)具有良好的电机本体特性,且发出直流电,适合用于风力发电且容易实现并网运行。提出一种新型开关磁阻风力发电并网系统整体控制策略,机侧SRG功率变换器采用基于励磁电流扰动控制法的最大风能跟踪(Maximum Power Point Tracking,MPPT)控制策略,网侧三相逆变器采用基于电网电压定向的双闭环矢量控制,以实现无需测量风速及无需知道风力机机械特性下系统的最大风能跟踪并网运行,提高风能利用效率。建立开关磁阻风力发电并网运行系统仿真模型,仿真结果验证了所提控制策略的正确性和有效性,具有一定的工程应用价值。展开更多
A new method of switched reluctance wind power generation position sensorless based on DFNN by FEA was proposed, Through current and magnetic linkage to get the angle of SRG rotor position, the nonlinear mapping of cu...A new method of switched reluctance wind power generation position sensorless based on DFNN by FEA was proposed, Through current and magnetic linkage to get the angle of SRG rotor position, the nonlinear mapping of cur- rent-magnetic linkage-angle was built, By training these sample data from FEA, the angle of SRG rotor position was replaced by the output of DFNN to achieve SRG position sensorless. Simulation results show that the error between actual rotor position and estimate rotor position is small; SRG can commutate with great accuracy; and the output voltage of SRG wind power system under variable wind speed is essentially constant.展开更多
This paper deals with various aspects of modeling, simulation, analysis, and control ofa SRG （switched reluctance generator） in different modes of operation. Excitation method of such a generator is shortly describe...This paper deals with various aspects of modeling, simulation, analysis, and control ofa SRG （switched reluctance generator） in different modes of operation. Excitation method of such a generator is shortly described. The output power of the SRG is controlled so that it can track the maximum output power of a wind turbine drive applications. Also, the output generator voltage is stabilized under either load or wind speed variations. Basic operational characteristics of a three-phase 6/4 SRG are developed through experimental observation. Meanwhile, the real-time operation was implemented in a DSP （digital signal processor） environment. The simulation of the complete system model has been obtained using the Matlab/Simulink software. A good agreement between experimental and simulation results has been observed which supports the validity of the proposed analysis.展开更多
文摘开关磁阻发电机(Switched Reluctance Generator,SRG)具有良好的电机本体特性,且发出直流电,适合用于风力发电且容易实现并网运行。提出一种新型开关磁阻风力发电并网系统整体控制策略,机侧SRG功率变换器采用基于励磁电流扰动控制法的最大风能跟踪(Maximum Power Point Tracking,MPPT)控制策略,网侧三相逆变器采用基于电网电压定向的双闭环矢量控制,以实现无需测量风速及无需知道风力机机械特性下系统的最大风能跟踪并网运行,提高风能利用效率。建立开关磁阻风力发电并网运行系统仿真模型,仿真结果验证了所提控制策略的正确性和有效性,具有一定的工程应用价值。
基金Supported by the National Natural Science Foundation of China （50977080） the Science ＆ Technology Department Project of Hunan Province （2010F J3116） the Education Department Project of Hunan Province （ 10A 114）
文摘A new method of switched reluctance wind power generation position sensorless based on DFNN by FEA was proposed, Through current and magnetic linkage to get the angle of SRG rotor position, the nonlinear mapping of cur- rent-magnetic linkage-angle was built, By training these sample data from FEA, the angle of SRG rotor position was replaced by the output of DFNN to achieve SRG position sensorless. Simulation results show that the error between actual rotor position and estimate rotor position is small; SRG can commutate with great accuracy; and the output voltage of SRG wind power system under variable wind speed is essentially constant.
文摘This paper deals with various aspects of modeling, simulation, analysis, and control ofa SRG （switched reluctance generator） in different modes of operation. Excitation method of such a generator is shortly described. The output power of the SRG is controlled so that it can track the maximum output power of a wind turbine drive applications. Also, the output generator voltage is stabilized under either load or wind speed variations. Basic operational characteristics of a three-phase 6/4 SRG are developed through experimental observation. Meanwhile, the real-time operation was implemented in a DSP （digital signal processor） environment. The simulation of the complete system model has been obtained using the Matlab/Simulink software. A good agreement between experimental and simulation results has been observed which supports the validity of the proposed analysis.
