This paper outlines the key elements in the development and design of a standard digital control for use in fuel metering control of a gas turbine. A definition and understanding of standard versus custom controls will be presented. The major components or design steps, including digital control hardware, software programming algorithms and modeling/simulation tools for testing, will be discussed. The implementation of a flexible I/O layout, a multi-tiered software architecture and user-friendly control configurability will be introduced. These features allow the standard gas turbine control functionality to be extended to address unique user requirements without directly modifying the standard program. Recent trends in the gas turbine market have included mergers and acquisitions of many OEM suppliers. This has prompted the need for a control system that can be quickly and easily reconfigured to accommodate differences in gas turbine manufacturers’ designs. An important element for success is the understanding that this work is done by service providers at various levels of the supply chain, including OEMs, generator or compressor equipment packagers, and gas turbine retrofitters. This offering details the control development and design process and emphasizes the critical need for high fidelity modeling and simulation tools to promote robust initial control software design. It also highlights the additional value of leveraging this work to support control software application changes that evolve over the lifecycle of the control product.

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