The Workshop on "Japanese Technologies in Operating Hydropower Reservoir and Flood Control" was an opportunity for the parties to exchange and share experiences in the operation of hydropower plants. Photo: Xuan Tien
At the Workshop, Mr. Ha Ngoc Tuan – a Chief Engineer of Kyushu Electric Power Corporation introduced the flow control program (HNT) developed by this Corporation to provide real time information for assisting hydropower plants in efficiently operating hydropower reservoirs and controlling floods.
Program features include: Weather forecasts and flow calculations, automated email notifications and SMS alerts when floods are forecasted at the alarm level, plant operation simulations, flood simulators, operation improvement calculation tool.
Real - time calculation is the core function of HNT that allows flow control. The program calculates inflows and outflows during operation. This information is graphically displayed, helping operators to comprehensively capture the reservoir situation and trend of flows into the reservoir to optimize costs. This function is also particularly useful in monitoring flood happenings in order to safely discharge floods.
In Vietnam, this program has been successfully verified in Thac Xang hydropower reservoir (Lang Son).
Mr. Nguyen Cuong Lam – Vice President of EVN said that the current total installed capacity of hydropower plants in Vietnam is over 18,000 MW. Hydropower sources have played an important role in securing the national energy security and promoting the socio - economic development. In particular, hydropower plants of EVN have a total reservoir volume of more than 30 billion m3 on large hydropower cascades such as Da, Se San, Dong Nai rivers.
The operation of reservoirs and flood control in the hydropower plants of EVN always ensure the plant safety, contributing to reducing and controlling floods in rainy seasons, supplementing water in dry season, harmomizing interests of water uses.
In order to take the initiative in reservoir operation, EVN not only receives forecast data from the National and Regional Hydro - Meteorological Forecasting Centers but also invests in rain measurement technologies in order to proactively forecast and calculate the water inflow to reservoirs.
The Workshop was an opportunity for EVN to exchange and learn from Japanese technologies in the optimal operation of hydropower plants.