Operation & Maintenance of Power Plants
Control and automation key to successful plant operation
Sean Ottewell informa sobre en qué medida depende una producción de electricidad óptima de las últimas soluciones de control y automatización.
Sean Ottewell berichtet wie optimale Energieerzeugung von den neuesten Automatisierungs- und Steuerlösungen abhängt.
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Sean Ottewell reports on how optimum electrical generation relies on the latest automation and control solutions.
odern electricity generating plants increasingly rely on advanced automation and control solutions in order to meet their performance and
environmental targets. Tis is highlighted by the case of Asia,
where more than half of the 1000MW ultra- supercritical coal-fired generating units in operation now use the Ovation control system from Emerson Process Management. Although more challenging to control because of the high temperatures and pressures involved, ultra-supercritical technologies can boost the efficiency of coal-based electricity generation by approximately 40 per cent while reducing carbon and other emissions. Emerson Process Management has now won
a further contract, this time to install Ovation at two 1050MW, ultra-supercritical, coal-fired power generating units under construction at the Taean thermal power plant in South Korea. With this latest project, Ovation technology will be installed at five of South Korea’s six largest coal- fired power plants.
Expected to come online in 2016, the new units will provide electricity required to support the growth of Asia’s fourth-largest economy. Te US $11 million (€8 million) contract was awarded by Daelim Industrial, one of South Korea’s largest construction firms and the primary contractor for the Taean plant. Te two new units will boost the plant’s capacity to 6100MW, making the 10-unit power-generating facility the largest in the country. At each of the two new units, the Ovation system will monitor and control all major plant components, including the BHK boiler and Hitachi turbine. Te system’s ability to unify boiler and turbine operations was an important consideration in Daelim’s selection of Emerson because tight control of boilers, turbines and balance-of-plant processes helps ensure more reliable and efficient plant operation. Emerson will also supply process-optimisation technologies and a high-fidelity simulator for testing and training. Ovation is also the technology of choice for a US$21 million (€15 million) modernisation
Fig. 1. A new integrated predictive diagnostics and protection system offers real-time monitoring to improve hydro turbine reliability.
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