Selecting an Effective ESS Installation Location From the Perspective of Reactive Power
- Authors
- Han, Sangwook
- Issue Date
- Mar-2020
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Blackout; energizing transmission line; energy storage system; self-starting generator; sensitivity; reactive power
- Citation
- IEEE ACCESS, v.8, pp.51945 - 51953
- Journal Title
- IEEE ACCESS
- Volume
- 8
- Start Page
- 51945
- End Page
- 51953
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/80198
- DOI
- 10.1109/ACCESS.2020.2980776
- ISSN
- 2169-3536
- Abstract
- When an entire power system blacks out, the system operator uses a self-starting generator to initiate the recovery procedure that starts the priority generator using a transmission line. Because most self-starting generators are pumped storage generators, they are located at a distance from the priority generators. This results in long transmission lines that can cause overvoltage during the recovery process through the line charging effect. Herein, the above issue is resolved by replacing the self-starting generator with an energy storage system (ESS) to reduce the possibility of overvoltage generation. The transmission line is shortened by moving the ESS closer to the priority generator, thus utilizing its flexible installation feature: an ESS has no location constraints for installation. In addition, this study determines an effective location for the ESS to minimize the reactive power requirements: moving the ESS closer to the priority generator reduces the required reactive power. Thus, the capacity of the power conditioning system can be reduced, which is advantageous in terms of cost-effectiveness.
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