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Title: Flicker Mitigation for a Grid-Connected Tidal and River Power Generator Using the BESS

Conference ·
OSTI ID:1566043
 [1];  [1];  [1];  [2];  [3];  [4]
  1. Auburn University
  2. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
  3. Ocean Renewable Power Company
  4. Intergrid

In the grid-connected tidal and river power generation, the water turbulence and the grid condition can induce the fluctuating output power. This power fluctuation may cause a power quality issue such as flicker, or voltage fluctuations, during the continuous operation. Hence, it is important to assess flicker emission and to mitigate flicker in order to solve this power quality issue. This paper proposes a Battery Energy Storage System (BESS)installed between the power converters of the tidal and river power system in order to mitigate flickers in different grid conditions. The BESS smooths the active power fluctuations and reduces flicker even from the weak grid with the low impedance angle in the distribution network. The feasibility of the proposed BESS system has been tested using a simplified simulation model with interconnected inverters developed in the validated simulation tool of PSCAD/EMTDC, and the obtained results from the case studies are presented.

Research Organization:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
DOE Contract Number:
AC36-08GO28308
OSTI ID:
1566043
Report Number(s):
NREL/CP-5D00-74944
Resource Relation:
Conference: Presented at the 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia), 27-30 May 2019, Busan, South Korea
Country of Publication:
United States
Language:
English