The Da Mi Hydropower Plant is located downstream of the Ham Thuan - Da Mi hydropower plant cluster. The water, after running through the turbines at the Ham Thuan plant, flows to the Da Mi reservoir, which provides the potential energy to generate electricity for two generating units with a total capacity of 175MW at the Da Mi Hydropower Plant.
The current control system of Da Mi has been in operation since 2001. Over time, the equipment has become outdated, and some control devices are no longer in production. The technical computer system uses outdated versions that cannot be updated to higher versions.
The interface of the existing control system
To ensure safe and reliable operation of the equipment at the Da Mi Hydropower Plant, Da Nhim - Ham Thuan - Da Mi Hydropower Joint Stock Company has invited biddings for the design, manufacture, supply, installation, and testing of the entire Distributed Control System (DCS) and equipment monitoring system at the Da Mi Hydropower Plant. The project also includes connecting the SCADA system to the control levels, the Ham Thuan Hydropower Plant, and the OCC Control Center of the Company in Bao Loc city, Lam Dong province.
Schematic diagram of the control network principle
The interface of the new control system
With the efforts and dedication of the technical staff at the Company, and close collaboration with the experts from the Contractor, on December 24th, 2022, the Company successfully put the new top layer DCS system for the H2 generating unit at Da Mi Hydropower Plant into operation, seven days ahead of schedule.
By leveraging proactive and innovative approaches and drawing on the lessons learned from previous phases, on February 11, 2023, the company carried out maintenance and repair work on Unit H1 at the Da Mi Hydropower Plant, including the replacement of the control and monitoring system for the unit. The work was expected to be completed by March 9, 2023. With timely and resolute guidance from leadership, as well as the enthusiastic and active participation of the technical staff within the company, and the smooth coordination with the contractor, the new DCS system for Unit H1 at the Da Mi hydroelectric power plant was put into operation on February 27, 2023, after 17 days of construction.
Control room of Da Mi hydroelectric plant after DCS upgrade completion
Another achievement has once again affirmed the maturity of the technical staff within the company.