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Nowadays the comfort in passenger transport system is very relevant. One source of noise and vibration is the torque ripple. Torque ripple can be generated by an inappropriate machine control tuning and by the inherent torque ripple of the machine. In permanent magnet machines, the inherent torque ripple is composed by three components: electromagnetic torque, reluctant torque, caused by the winding...
The paper describes step by step the process of constructing and testing real-time tool for analysis of a bidirectional Buck-Boost converter supplying a Permanent Magnet Synchronous Machine (PMSM), as a traction motor for light electric vehicles. This converter was developed to be used as a controlled energy transfer equipment between the main energy source of a battery and an auxiliary ultracapacitor...
An important procedure in conceptual and design engineering is the ability to simulate processes using mathematical models to emulate, as far as possible, the reality of the physical model. An important feature of these models is to save time and money in the steps prior to construction, starting and parameter tuning of the project; the ability of each model to deal with different types of situations...
A control structure for a hybrid renewable energy source tied to a direct current (DC) motor is proposed. The energy system is composed by a Photovoltaic (PV) array as the primary power source and a Fuel-Cell (FC) as an auxiliary or secondary power source. The control system has been developed to guarantee motor speed regulation and maximum power generation of the energy sources under any environmental...
This contribution is concerned with multidrive servo control of very large rotary tables for machine tools, where flexible gears limit the achievable feedback control performance. State space control extensions, that are now available for servo axis controllers, can improve the performance significantly but increase the design and commissioning complexity. After an overview of state-of-the-art control...
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