Emmanuel Tanyi

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designed to perform one of three generic functions – monitoring, control or remote communication. The agents interact and share information via the Internet, using the TCP/IP suite of protocols. The application of the model to the Cameroon power system is presented, to illustrate the advantages of the approach over conventional modeling strategies. The(More)
This article presents a distributed real-time control system for the southern grid of the Cameroon power system. The southern grid, which supplies over 90 % of the power output in Cameroon, incorporates two remotely located hydroelectric generating stations, a power distribution center, several thermal plants and hundreds of kilometers of transmission(More)
— This article shows the scope and limits of UML as a tool for modelling Automatic Control Systems. An alternative metamodel, Hybrid Activity Diagram (HAD), is proposed and applied to a concrete example, in order to illustrate its efficiency in comparison to the limits of UML diagrams. The article also presents bridges which interlink UML, HAD and GRAFCET(More)
—We present in this paper a new model of a low pass filter (LPF) for a Phase-Locked Loop (PLL) systems. The main characteristic of this CMOS LPF structure is its dynamic band-width (about 12.66kHz when the PLL is locked and 211. 30kHz during the tracking). It ensures a fast response time, a suppression of the jitters and a better noise level at the output.(More)
— This article proposes an approach of interactive construction of Grafcets. We especially studied the problem of the research of a verification method and of holds it of the consistency, and we arrived to formulas and an algorithmic method of interactive construction and progressive checking of this characteristic that we present. This algorithm has been(More)
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