Mobile robots are increasingly used in industrial applications. There many constructive solutions for mobile using various variants of actuation and control. The proposed work presents a low-cost variant robot equipped with Mecanum wheels, which uses brushed DC motors, controlled by the PWM method as solution. In first part, multicriteria analysis based on AHP was performed selection Then, soft...

In recent years, interest in the use of multi-phase (more than three-phase) dc/ac inverters applications such as electric vehicles, traction, more aircraft, ship propulsion, aerospace applications, etc. has been increasing day by day. The paper presents Discontinuous Space Vector Pulse Width Modulation (DSVPWM) technique for control a five-phase two-level inverter. DSVPWM algorithm uses zero, m...

Abstract Energy storage plants are going to become a strategic asset in electric grids. This statement is confirmed looking at the increasing shares of renewables composing energy portfolio several nations. Therefore power demand and production mismatches, caused by intermittent nature renewables, must be reconciled. Many solutions available but Advanced Adiabatic Compressed Air Storage (AA-CAE...

Due to ever increasing performance requirements, model-based optimization and control strategies are increasingly being adopted by machine builders automotive companies. However, this demands an increase in modelling effort a growing knowledge of techniques, as sufficient level detail is required order evaluate certain characteristics. Modelling tools such MATLAB Simscape have been created redu...

This paper presents the nonlinear control design with formal stability proof for a Modular Multilevel Converter (MMC), which is critical interaction between AC and DC grids. Lyapunov theory used to develop proposed controller, based on Backstepping Feedback Linearization techniques perform analysis. The controller allows asymptotically stabilize all converter’s states, i.e., currents, circulati...

In this paper, a simplified double-integral sliding-mode control method for pulse-width-modulated dc-ac buck conversion is introduced. The equation derived based on the equivalent method, in which control-oriented model developed using averaged dynamics of power converter continuous conduction mode. contrast with conventional schemes, complexity adding capacitor current sensor, variable ramp vo...

Flow rate and pressure are variables of great interest in the process control industry, especially pumping systems. With help modeling simulation, it is possible to understand operation these systems prior their construction, addition allowing behavior be analyzed various operational scenarios testing different strategies. In this work, hydraulic, mechanical, electrical electronic models compon...

The power take-off (PTO) stability is one of the most important concerns for wave energy converters (WECs). PTO unit converts mechanical produced by absorber (WA) into useful electrical energy. Due to drastic input variation real motions, generated from significantly fluctuates and potentially harmful electronic appliances. This paper proposes an improved hydraulic (HPTO) WECs. An HPTO comprise...

ABSTRACTRenewable Energy Sources (RES) are well – defined as energy sources, that are in abundance within the natural surroundings and are much inexhaustible. In addition, hydroelectricity (HE) is a vital part of world renewable energy supply and hydropower remains a bulk source of electricity generation because of its environmental friendliness in nature. Modeling is the analysis of the ...

The aircraft is a means of transportation that operates mainly in the air; however, it starts and ends its journey on ground. Due to aircraft’s structural complexity, simulation tools are used understand predict behavior movements Simulation allow adjusting observation parameters gather greater amount data than real tests explore interactions their individual components with external objects su...