Stabilization of a large-capacity, long-distance transmission system by an adjustable-speed flywheel generator

✍ Scribed by Osamu Takahashi; Kesao Sato; Ken Goto; Takashi Shirasaki; Jun Sanekata; Masahiko Amano; Masaichi Endo

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 839 KB
• Volume: 127
• Category: Article
• ISSN: 0424-7760
• DOI: 10.1002/(sici)1520-6416(19990430)127:2<32::aid-eej5>3.0.co;2-o

✦ Synopsis

An adjustable-speed flywheel generator (FWG) can control both active power and reactive power rapidly. We have studied the effect of FWG installation on a largecapacity, long-distance transmission system, especially when the system includes loops. In this paper, we describe the selection of FWG location, the selection of stabilizing control input signal, and the required quantities of FWG. FWG location is selected by a PQ-sensitivity method, calculation of which is simple and permits easy understanding of the effect of both FWGs active and reactive power. As a stabilizing control input signal, we use bus voltage frequency instead of power flow because the flow changes stepwise by opening three-phase single-circuit. Additionally, we clarify the FWG quantities that must be designed, such as FWGs active power and reactive power. We considered FWGs slip to determine the quantity because the capacity of the exciter depends on slip.