Abstract
Ignoring the dynamic impedance characteristics of a thyristor-controlled series-capacitor-type fault current limiter (TCSC-FCL) may lead to maloperation/fail-to-trip or slow response of distance protection. To solve the above problem, the TCSC-FCL dynamic impedance analysis model was established. Taking the special operation mode of the TCSC-FCL into account, the time-varying characteristics of the TCSC-FCL during the whole process from the series compensation mode to the current-limiting mode were analyzed. Then, this paper proposed the function expression of dynamic impedance characteristics of the TCSC-FCL and put forward the distance protection setting strategy based on a dynamic offset impedance circle in order to eliminate the influence of TCSC-FCL dynamic impedance characteristics to the distance protection operation. By establishing a typical simulation model including the TCSC-FCL, the correctness of dynamic feature's analytic expression and the distance protection setting strategy is proved with extensive simulation results.
| Original language | English |
|---|---|
| Pages (from-to) | 1428-1437 |
| Number of pages | 10 |
| Journal | IEEE Transactions on Power Delivery |
| Volume | 33 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jun 2018 |
Bibliographical note
Publisher Copyright:© 1986-2012 IEEE.
Keywords
- TCSC-FCL
- distance protection
- dynamic impedance process
- dynamic offset
- impedance circle
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering