One of North America's largest hydro electric power generation sites is currently installing multiple copies of Trihedral's VTS software for process monitoring and control. VTS provides the key supervisory control in this 1,700 megawatt peak power generation complex.
Primary control of 32 generators, located in three distinct plants, is being performed by standard industrial programmable logic controllers (PLCs). All generators are linked by the PLC manufacturer's proprietary network which includes interfaces to the personal computers (PCs) running VTS in each plant and in the main control room. As well, all PCs are connected via Ethernet, providing a redundant network.
In each plant, VTS acts as the server for that specific plant and central control room as well as a client to the other plant servers on the network. There is a built-in redundancy capability utilizing both networks well as a daisy chain fail-over routing.
VTS provides information on power generation to the corporate local area network as well as adjacent utilities. The VTS installation was later expanded to incorporate river control as well as control of several smaller plants.
Worldwide appeal of VTS is demonstrated by a large and satisfied customer base on four continents.
