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Power Plant Simulators Using Westinghouse Distributed Processing Family Hardware and Software

Duke Power Company and the Electric Power Research Institute have embarked on a joint effort to develop plant specific engineering and training simulators to support control replacement projects in Duke's fossil plants. These simulators use low cost personal computer hardware (PCs) and modular process simulation development software, integrated to Westinghouse Distributed Processing Family (WDPF) control hardware and software, to provide an accurate representation of the plant process and controls. Integrating the PC-based process simulation to the control system proved to be a very complex task. To meet the interface requirements, firmware was modified, and software and interface cards were developed that allow high-speed parallel access to the control system processor memory. In addition, modifications had to be made to provide necessary simulator training functions such as freezing the system, saving snap-shots, and loading initial conditions. This paper provides details on the development of the PC/ WDPF interface and simulator instructor capabilities. In addition, it outlines plans for use of the simulator as an operator training and controls engineering tool.