【摘要】 船舶电力系统是一个复杂的非线性系统,系统的动/静态负载与发电机形成强非线性的动态特征。本文针对电力系统低频震荡特性进行分析,研究舰船电力系统控制方法,并运用HHT方法给出船舶电气柴油机的转子运动方程和输出功率方程。通过HHT方法可减少干扰对系统的影响,确保整个系统正常运行及频率稳定性,提高船舶电力系统的暂态品质。更多还原

【Abstract】 The ship power system is a complex nonlinear system,the disturbance can cause the low frequency oscillation,which affects the quality of power supply seriously. This paper analyzed the low frequency oscillation characteristics of the power system,and the research on the power system control method of the ship,and use the HHT time frequency analysis method to analyze and identify the signal of low frequency oscillation. This method can effectively suppress the influence of interference on the system,and ensure the frequency stability of ship power system,improve the quality of ship power system transient.更多还原