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Modular Multilevel Converters (MMCs) are a new circuit topology to realize multilevel converters. Major advantages of MMCs in comparison to other multilevel converters or standard Voltage Source Converters (VSCs) are lower costs and a modular design for high voltage applications, higher reliability and longer maintenance intervals. However, modular(More)
This technical note addresses optimal control and scheduling (controlled switching) of discrete-time switched linear systems. A receding-horizon control and scheduling (RHCS) problem is introduced and solved by dynamic programming, leading to a combinatorial optimization problem with exponential complexity. By relaxed dynamic programming, complexity is(More)
In this paper periodic observer design for linear continuous-time systems with periodically time-varying sampling intervals and time delays is considered. Such systems arise e.g. in networked embedded control applications where limited computation and communication resources have to be scheduled. A periodically time-varying discrete-time plant model and(More)
In this paper optimal control of systems with constrained computation and communication resources is studied. The timing of real-time scheduling algorithms like rate monotonic scheduling and earliest deadline first scheduling is analyzed. It is shown that these scheduling algorithms lead to periodically varying sampling periods and time delays. Modeling of(More)
This paper addresses optimal control and scheduling of networked control systems (NCSs) where controllers and actuators are connected via a shared communication medium. The NCS is modeled as a discrete-time switched linear system. The control and scheduling strategy are then optimized jointly. Therefor, a receding-horizon control and scheduling (RHCS)(More)
This paper addresses stability and control issues of systems with uncertain and time-varying sampling period and time-delay. These arise e.g. in embedded or networked control applications where limited computation or communication resources have to be scheduled. The uncertain and time-varying sampling period and time delay are transformed into polytopic and(More)
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