Long-term energy balance support scheduling method for cascade hydropower considering renewable energy uncertainty and hydraulic spatio-temporal dynamic coupling

April 1, 2026Journal of Hydraulic Engineering

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Key Points

This research focuses on optimizing long-term energy balance support for cascade hydropower, accounting for renewable energy uncertainties and hydraulic dynamics.
Developed a scheduling method that incorporates renewable energy uncertainty and hydraulic spatio-temporal coupling.
Constructed multi-period energy supply-demand balance constraints based on hydraulic dynamics.
Utilized mixed-integer linear programming to solve the model, tested in a comprehensive hydropower base in the Southwest region.
The proposed method increased system stability and revenue compared to the benchmark model, as shown by numerical outcomes.
It effectively reduced water wastage risk.
Quantification of cascade hydropower's energy balance support capability provides strong backing for power supply reliability.

Reveals a new scheduling method improves energy balance in hydropower systems, indicating enhanced stability and reduced risks.

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ZHAO et al. (2026) studied this question.

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