Abstract
In modular distributed architectures, the adoption of a communication method that is at the same time robust and has a low and predictable latency is of utmost importance in order to support the required system dynamics. The aim of this paper is to evaluate the consequences of the random jitter on machine drives distributed control, caused by the messages’ re-transmission in case of an error in the received data. To achieve this goal, two different Forward Error Correction (FEC) techniques are introduced in the chosen protocol, so that the recipient of the message can correct random errors without the need of any additional round trip delays needed to request and obtain a re-transmission. Experimentally validated simulations are used to evaluate the impact of random network derived jitter on a real world closed loop control system for distributed power electronic converters.
Highlights
The modern scenario for power electronics is of one of ever increasing complexity with radical paradigm shifts in many sectors
The most critical figure of merit for communications used in control systems is the latency, introduced, directly or indirectly, by the encoding and decoding processes, as it can impact the performance and stability of the control loops
This paper showed how the performance and viability of distributed power electronics controls is highly dependent on the network performance
Summary
The modern scenario for power electronics is of one of ever increasing complexity with radical paradigm shifts in many sectors. Framework aims to replace the mechanical, hydraulic, and pneumatic systems with electromechanical ones This will lead to an increase in overall efficiency through the use of a more effective, bleedless turbofan main engine, and to weight reduction due to the elimination of ducting, valving, and other power transmission components. In these types of systems, fault tolerance is one of the most important design aspects. This goal can be achieved again through modularization, adopting segmented motors, and drives [6]
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