A model-based decoupling observer to locate forced oscillation sources in mechanical power

作者：Li, Shangyuan; Luan, Moude; Gan, Deqiang^*; Wu, Di

来源：International Journal of Electrical Power & Energy Systems, 2018, 103: 127-135.

DOI：10.1016/j.ijepes.2018.05.014

• Low frequency oscillation
• Forced oscillation
• Decoupling
• Eigenstructure assignment

In this paper, a method is proposed to locate the forced oscillation source, which is often resulted from a continuous disturbance on unit's mechanical power. By judiciously designing a Luenberger observer using an eigenstructure assignment, the relationship between outputs of observer and disturbance in mechanical power of a unit is decoupled. The introduced observer cannot only locate the forced oscillation source in mechanical power, but also estimates the amplitude of the oscillation source. Simulation results of the 19-machine 118-bus test system demonstrate the effectiveness of the proposed method.

• 出版日期2018-12
• 单位浙江大学