【摘要】 针对传统的控制方法下电机输出电压幅频不稳定的问题,提出一种无刷双馈电机(Brushless Doubly-Fed Generator, BDFG)定子电压矢量控制的方法来改善发电机输出电压幅频的稳定性;为确保相位的一致,利用锁相环技术对电网电压相位进行监测来实现发电机电压相位跟踪控制,从而实现轴带无刷双馈电机与船舶电网并网运行。在MATLAB/Simulink中进行仿真试验,其结果表明:该控制方法对于改善无刷双馈电机输出电压的稳定性与相位跟踪具有一定的控制效果,并且能够实现轴带无刷双馈发电机与船舶电网并网运行。更多还原

【Abstract】 To solve the problem that the output voltage of the motor is unstable with traditional control method in ship shafting power generation system, a stator voltage vector control of BDFG(Brushless Doubly-Fed Generator) is proposed to improve the amplitude and frequency stability of output voltage. The phase-locked loop technology is used in monitoring voltage phase of the grid, to track and control the voltage phase of generator, thus the shaft BDFG and the ship power grid are connected in operation. A simulation is established in MATLAB/Simulink, and it is proved that the proposed method has a certain control effect on improving stability and on phase tracking of the output voltage of the BDFG, the grid-connected operation of shaft BDFG and ship grid can be achieved as well.更多还原