Impacts of Ternary-Pumped Storage Hydropower on U.S. Western Interconenction with Extremely High Renewable Penetrations

Conference · Thu Jan 30 04:00:00 EST 2020

DOI:https://doi.org/10.1109/PESGM40551.2019.8973787· OSTI ID:1602667

Dong, Zerui ^[1]; Tan, Jin ^[1]; Muljadi, Eduard ^[2]; Nelms, Robert ^[2]; Jacobson, Mark D ^[1]

---

1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
2. Auburn University

In recent years, ternary pumped storage hydropower (T-PSH), as one of the advanced PSH technologies, has attracted more attention from the industry. The interest is because of the capability of providing fast power support for the future electric grid with high penetration of renewable energy (RE). This paper focuses on studying the impact of T-PSH on frequency response of the U.S. Western Interconnection under different penetration levels of RE, which are from 20% to 80%. The detailed model of T-PSH is developed and implemented in the Western Interconnection grid model based on the GE Positive Sequence Load Flow (PSLF) platform, which can capture the unique dynamics of hydraulic short-circuit (HSC) mode and fast mode switching of T-PSH. To reveal the dynamic benefit from T-PSH, the frequency response of the Western Interconnection has been compared with and without T-PSH. In addition, a new solution is discussed that uses T-PSH to improve system stability issues caused by high RE penetration.

• Research Organization: National Renewable Energy Laboratory (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: 1602667
• Report Number(s): NREL/CP-5D00-73107
• Country of Publication: United States
• Language: English

Related Subjects

13 HYDRO ENERGY
frequency response
high renewable penetration
hydraulic short-circuit
operation mode switching
ternary pumped storage hydropower