Nghiên cứu phương thức phối hợp vận hành nâng cao hiệu quả khai thác nhà máy thủy điện bậc thang

Abstract

In Vietnam, hydropower projects have been mostly exploited. Demand for power is increasing. Thermoelectricity develops rapidly, affecting the environment and energy security. The hot development of solar and wind power sources changes electricity source structure, with the proportion of hydropower decreasing. On the other hand, the electricity demand changes, different from the previous forecast, in the direction of disadvantage for hydropower and electricity resource exploitation. Therefore, it is necessary to have appropriate solutions to improve the operational efficiency of hydropower. The article presents the scientific basis and method of coordinated exploitation in order to increase the operational efficiency of hydropower for terraced hydropower stations, at the same time reducing the cost of purchasing other power sources. The obtained results from application for two terraced hydropower stations in Sesan rivers show the effectiveness of the methodology compared with the actual operation.