Abstract
Dynamic interaction between voltage and damping control loops of static var compensator (SVC) controller was studied by computing the electromagnetic torque in a single machine infinite-bus (SIMB) power system. It is revealed that voltage and damping control gains of SVC are interrelated in restriction of each other in order to get positive synchronous torque and damping torque simultaneously. The influence of SVC controller parameters on the system damping of the 36-bus system presented in PSASP program was also analyzed by the eigen-value theory. The conclusion is that the voltage control gain and time constant can impact the system damping, but damping control gain can only vary the damping characteristic of the power system for improving some low damp oscillation modes. The time domain simulation results validated the conclusion.
| Original language | English |
|---|---|
| Pages (from-to) | 12-17 |
| Number of pages | 6 |
| Journal | Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering |
| Volume | 28 |
| Issue number | 1 |
| State | Published - 5 Jan 2008 |
Keywords
- Damp
- Electromagnetic torque
- Oscillation mode
- Static var compensator