Research on transient energy dissipation characteristics and dynamic evolution mechanism in pump mode of variable-speed pumped storage units

Key Points

• Energy dissipation characteristics significantly affect the efficiency of variable-speed pumped storage units, influencing overall performance.
• The transient energy dissipation was measured, resulting in notable fluctuations during pump mode operations.
• Analysis focused on the dynamic evolution mechanisms of energy behavior within the pumped storage units.
• These findings highlight the need for improvements in design to enhance system stability and efficiency.