In this paper, a new loss minimization control algorithm for inverter-fed permanent-magnet synchronous motors (PMSMs), which allows the reduction of power losses electric drive without penalty on its dynamic performance, is analyzed, experimentally realized, and validated. particular, after brief recounting two strategies, namely, "search control" "loss-model control," both modified model PMSM (which takes into account iron losses) an innovative "loss-model" strategy are presented....

Upright stance on a balance board is skill requiring complex rearrangement of the postural control. Despite large use these boards in training standing posture, comprehensive analysis learning process underlying control devices lacking. In this paper to maintain stable multiaxial oscillating was studied by analyzing performance changes over short and long periods. Healthy participants were asked keep orientation as horizontal possible for 20 sec, performing two sessions 8 trials separated...

This paper proposes a two-dimensional model of low-voltage power MOSFETs, which are suitable for synchronous rectifier applications. First all, the device has been characterized by measuring output (I-V) and transfer characteristics, capacitance curves (C-V), breakdown voltage, body-drain diode characteristic reverse recovery performance. Hence, was derived through (2D) process simulator. Finally, advanced 2D mixed circuit simulations have carried out finding good agreement with experimental...

In this paper the converter requirements for an optimum control of electrolyser linked with a DC bus are analyzed and discussed. The hydrogen generating device is part complex system constituted by supplying photovoltaic plant, grid fuel cell battery. characterization in several operative conditions actual industrial carried out order to design optimize DC/DC converter. A dedicated zero voltage switching presented simulated inside context distributed energy production storage system....

The purpose of this work has been the development supplying system for an industrial electrolyzer. hydrogen generating device is part a complex constituted by photovoltaic plant, grid and fuel cell battery. main aim electrical storage devoted to suitable load in order obtain optimum profile case domestic consumers. converter linked maximum power point tracking (MPPT) algorithm which enables extract from plant. energy supplied electrolyzer or according profile. A phase-shift control strategy...

This paper describes a direct self-control (DSC) scheme for synchronous reluctance motor drives. The presented DSC develops new torque control methodology that does not require any position transducer to synchronize the stator current vector with rotor. Such strategy differs from conventional approach in order fit some specific requirements of (SyncRel) machines. First, and rotor are controlled instead flux as scheme. Second, operating sector is selected according actual rather than flux....

In civil buildings, large part of energy consumption common service is related to lift apparatus operations. Considering the huge diffusion roped elevators and their reciprocating operating mode, a critical evaluation streams has been done using an accurate model specially developed. Thus, retrofit kit studied designed able store during generating mode electrical machine recover it back in motor operation. Finally, comprehensive saved parameterized with numbers passengers duty cycle...

Abstract Adhesive capsulitis (AC) or frozen shoulder is an inflammatory condition characterized by joint stiffness and pain. Although its pathogenesis not fully elucidated, inflammation (either acute low-grade inflammation) believed to play a crucial role. An increase in reactive oxygen nitrogen species also occurs AC. The management of AC challenging for orthopedic surgeons physical therapists. Intra-articular hyaluronate injection treatment option. Yet, failure reported may depend upon...

In this paper a new loss minimization control algorithm for inverter-fed permanent-magnet synchronous motors (PMSM), which allows to reduce the power losses of electric drive without penalty on its dynamic performances, is analyzed, experimentally realized and validated. particular, after brief recall two strategies (the "search control" "loss-model control"), both modified model PMSM, takes into account iron losses, "loss-model" strategy, are treated. Experimental tests specific PMSM...

The paper deals with an innovative system achieving auxiliary source of energy supply from photovoltaic solar system, which operates in case blackouts by providing a set loads determined the continuity service during absence power network. is designed mainly suitable for use field home appliances. It also finds additional possible uses medical and/or industries where plays fundamental role safety. proposed solution based on stand-alone coupled conventional UPS (uninterruptible supply). A key...

The paper proposes a SPICE model of an electrical drive motor system that allows prediction conducted EMI in the presence long cables. A high frequency power connection between machine and inverter is developed, then suitable whole obtained by connecting line with electric circuital converter. Simulation results both common mode differential current different cable lengths, are compared experimental achieved on standard 2 kW induction drive.

Abstract Benefits from post-training memory processing have been observed in learning many procedural skills. Here, we show that appropriate offline periods produce a performance gain during to stand on multiaxial balance board. The tilt angle and the area of sway motion board were much more reduced participants performing training spaced by an interval one day with respect executing same amount practice over concentrated period. In particular, encoding was specifically associated along...

In this paper, a comparison is performed between six different configurations of buck power converters for low voltage applications. The considered operate under hard and soft switching conditions are equipped with conventional synchronous output rectification. based on overall efficiency, device stresses, electromagnetic emissions converter sizes. Guidelines finally given to help designers high frequency SMPS in selecting the best topology according specific design.

Nowadays voltage regulator modules (VRMs) are high switching frequency applications devoted to supply low-voltage and current with more increasing slew rates. Excellent performances can be provided by using a synchronous-rectifier buck converter, which allows overcoming the limitations in terms of efficiency shown standard topology Schottky diode. A proper design is fundamental obtain desired performance from converter due its considerable contribute total power losses. In this paper...

The main aim of this paper is the analysis and experimental evaluation performance a photovoltaic power plant controlled by dedicated algorithm. This devoted to search maximum point during energy conversion panels. proposed approach uses control strategy that does not requires current sensing, which cause noises, errors delays step detection working point. Modeling both source switching converter key for implementation voltage sensing tracking routine. algorithm has been implemented in 8-bit...

In this paper, a complete simulation setup for AC motor drives which is suitable automotive purposes proposed. The model of the whole drive including motor, inverter and primary supply implemented in MATLAB/Simulink environment. proposed well-suited tool system sizing control algorithm design. System performances can be evaluated under effective working conditions since step. According to actual regulation force, urban cycle test carried out. speed profile vehicle through an way forced as...

The paper deals with a smart load priority control strategy for Photovoltaic Uninterruptible Power Supply (PV-UPS) system. This hybrid uninterruptible power supply system achieves an auxiliary source of energy from photovoltaic modules, which operates in case blackouts by providing set loads determined the continuity service during absence supplied AC network. proposed is mainly designed field home appliances. solution based on stand-alone conventional UPS. A key role played intelligent that...

In this paper a multisource renewable energy system simultaneously fed by photovoltaic and thermo-electric generators is proposed. The designed provides multi-input power converter which properly controlled to achieve both output input control. DC bus regulated proper supply of the buffer. On each port control on source operating point applied maximum transfer from source. Experimental results are shown test efficiency proposed solution.

High reliability is expected today from photo voltaic (PV) systems since they are devoted to specific applications where the power grid not available, or cost of energy produced by diesel station high due transportation fuel. As for any complicated equipment, a scheduled maintenance can improve reliability. In this paper it shown how monitored plant increase its reducing complexity transmission system as well managing components remote control location. A physical scaled simulator has been...

The paper investigates the influence of modulation strategy on generation high frequency (HF) currents in modern electric drives. Firstly, HF current mechanisms are revised and related to key features PWM techniques. A comparative investigation generated by three standard special techniques is then experimentally performed a 1.5 kW induction motor drive. Finally, useful guidelines obtain best compromise between amplitude drive efficiency carried out.

The paper deals with the investigation of electrical field distribution on an actual 36 kV gas insulated three phase load break switch application by a CAD analysis. proposed medium voltage characteristics and applications are described. In particular switchgear its performances focused. An accurate static analysis in both stainless steel tank will be carried out several simulations suitable model through finite element method (FEM). numerical is applied two dimensional dedicated software...

In this paper a multisource renewable energy system for high-current applications is proposed. The power architecture based on multi-input converter including control and reconfiguration subsystems. Independently of the type connected sources, proper output DC voltage bus provided as well operating point each source to achieve maximum transfer. A 48V thermoelectric-photovoltaic-battery in three input configuration designed. Three interacting feedback networks are implemented: outer loop...

The paper deals with the development of a mathematical model an active anti-rolling system for yachts and luxury boats, tailored around pair fin stabilizers driven by Permanent Magnet Synchronous Motor drives. Based on such model, dynamic energetic performance stabilizing can be analyzed either boat cruising at anchor. developed exploited to tune parameters roll control system, task often accomplished field, design optimal cruise algorithms.

The paper deals with the theoretical development and practical implementation of an adaptive speed regulator scheme based on Model Reference Adaptive Control approach, employing fuzzy laws for process. A neuro-fuzzy approach optimization is used to face one major drawbacks control, lack a systematic procedure. performance comparison between new controller conventional MRAC carried out by mean simulations confirming superiority proposed regulator. Experimental tests are presented in order...