同步发电机的虚拟电动势相量及其应用

The Virtual Electromotive Force Phasor of Synchronous Generator and Its Application

本文将dq0坐标下的d轴作为横轴,q轴作为纵轴的方式来定义电动势相量,引入了稳态电动势和暂态电动势相量,与次暂态电动势相量具有统一的表达形式;同时,引入了虚拟的稳态电动势、暂态电动势和次暂态电动势的概念,它们同样具有统一的表达形式。在同步发电机的电磁功率表达式中,通过使用统一的虚拟电动势,说明凸极机的电磁功率表达与使用统一稳态和暂态电动势的隐极机一样,具有简洁的表达方式。

In this paper, the steady state electromotive force phasor as well as the transient phasor is introduced by defining the electromotive force phasor in the way that taking d axis as horizontal axis and q axis as vertical axis, so these two phasors have unified form with the subtransient phasor. And the virtual steady electromotive force and the transient force with the subtransient force also have the unified form. Through using the virtual electromotive force, the expression for electromagnetic power of the salient-pole generator has an elegant form, as well as the non sali- ent-pole generator.