Torque ripple reduction of brushless DC motor based on adaptive input-output feedback linearization

IEEE Projects Trichy, Best IEEE Project Centre Chennai, Final Year Projects in Trichy – We Provide IEEE projects 2018 – 2019 , IEEE 2018 Java Projects for M. Tech, IEEE 2018 Dot net Projects for B. Hence,   the CSI-fed ac machine has a second-order system in the continuous time   domain. This paper presents a design methodology for the closed-loop current   controller of the CSI-fed torque ripple reduction of brushless DC motor based on adaptive input-output feedback linearization machine drive system.

Only part of the load power is processed   by the active switches, reducing the peak current through the switches to   half of the load current, as higher power levels can then be achieved by the   proposed topology. The volume of reactive elements, i. Abstract—Anovel   high step-up converter is proposed for a frontend photovoltaic system. Through a voltage multiplier module, an asymmetrical interleaved high step-up   converter obtains high stepup gain without operating at an extreme duty   ratio. The voltage multiplier module is composed of a conventional boost   converter and coupled inductors.

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The classical   SPWM method is quite effective in controlling the RMS magnitude of the UPS   output voltages. Depending on the output power rating, the power stage to drive   an LED can be classified into single-stage and two-stage structures. The   single-stage structure is for low-power LED lighting applications. 70 W of output power because of its low   efficiency and huge transformer at high power. DC interface allows for the improvement of system   efficiency by fully utilizing dc-based renewable sources and storage devices.

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In this paper,issues on PV interface for dc distribution systems are   discussed for energy-efficient and reliable system implementation. AC and dc   PV interfaces are mathematically analyzed. Abstract—This   paper proposes a pulse-width modulation threelevel converter with reduced   filter size using two transformers. The proposed converter hasmany   advantages. All switches sustain only the half of the input voltage and since   the secondary rectified voltage is a three-level waveform, the output filter   inductor can be reduced.

Also, because of the power sharing of transformer   and reduced output inductor, high efficiency can be obtained. PV voltage regulation is   fundamental in order to both maximize and limit the power. For this purpose,   a large input capacitor has traditionally been used. However, when reducing   that capacitor’s size, the nonlinearities of the PV array make the   performance of the voltage regulation become highly dependent on the   operating point. Abstract—A   primary-side controlled method is commonly used in flyback LED driver to   regulate output current by employing an auxiliary winding.

However, owing to   intrinsic propagation delay in real-world circuits, a primary-side controlled   flyback converter experiences a worse line regulation. The BCM and DCM   control strategies are investigated for the interleaved flyback microinverter   concentrating on the loss analysis under different load conditions. These two   control strategies have different impact on the loss distribution and thus   the efficiency of the flyback microinverter. HVDC transmission may be an option to harvest offshore wind energy. By integrating two boost inductors into one magnetic   core, not only the circuit volume is reduced, but also the operating   frequency of the core is double of the switching frequency. Abstract—Power   transformer is one of the most complex parts of power converters. The   complicated behavior of the transformer is usually neglected in the power   converter analysis and a simple model is mostly used to analyze the   converter.

This paper presents a precise analysis of a fifth-order resonant   converter which has incorporated the resonant circuit into the transformer. The proposed converter attains   clamping of the device voltage by secondary modulation, thus eliminating the   need of snubber or active-clamp. The DAEF control   technique is concurrently implemented with a digital controller of a   grid-tied photovoltaic microinverter. A brief description of the   microinverter architecture and its inverter circuit is illustrated. The   inverter stability is investigated using the overall transfer function. Fundamentally, the conversion   efficiency from dc to ac power of an inverter is important. PV modules   is more important than the conversion efficiency.

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In this paper, a new   control method for a three-level inverter is proposed. We aim at investigating the   optimal supercapacitors-battery combination versus the SCs cost. To solve this   problem, a bridgeless SEPIC converter with ripple-free input current is   proposed. In the proposed converter, the input bridge diode is removed and   the conduction loss is reduced. Abstract—Inverters   with high-output voltage gain usually face the problem of high-input current   flowing through their components. The problem might further be exaggerated if   the inverters use high-frequency magnetic devices like transformers or   coupled inductors. Leakage inductances of these devices must strictly be   small to prevent overvoltages caused by switching of their winding currents.

All of   these advantages are due to its heating process, where the pot is directly   heated by the induced currents generatedwith a varyingmagnetic field. As a   result, the glass where the pot is supported is not directly heated and,   consequently, efficiency and heating times are improved. CMV peaks are produced by the zero states in most of the cases. Abstract—Unbalanced   grid voltage causes a large second-order harmonic current in the dc-link   capacitors as well as dc-voltage fluctuation, which potentially will degrade   the lifespan and reliability of the capacitors in voltage source converters.

Simulink are proposed, and the integrated monitoring EMS is   implemented with LabVIEW. To improve the life cycle of the battery, fuzzy   control manages the desired state of charge. Abstract—This   paper introduces a designmethodology for a resonant boost converter topology   that is suitable for operation at very high frequencies. The topology we   examine features a low parts count and fast transient response, but suffers   from higher device stresses compared to other topologies that use a larger   number of passive components. The optimal switching frequency as well as the optimal values and   types of the PV inverter components is calculated such that the PV inverter   LCOE generated during the PV system lifetime period is minimized. Its structure integrates coupled inductor and switched   capacitor technologies to realize high step-up voltage gain. The leakage   inductance energy of the coupled inductor can be recycled to reduce voltage   stress and power losses.

This dc distribution system is connected to ac grid via a bidirectional   inverter. Two PV strings and two MPPTs are implemented in this system. The   proposed MPPT topology consists of buck and boost converters to deal with   wide output voltage range of PV panels. From the PFC converter model and the fact that a type-II   compensator is used, a design methodology to maximize the bandwidth of the   feedback controller is suggested.

Abstract—Alternative   energy sources have for some time attracted great interest in the area of   static converter development. This fact is related in greater part to issues   such as sustainability and detrimental effects on the natural environment,   which all contribute to the viability of this type of energy source. Abstract—This   paper presents an electric equivalent model applied to induction   electrodeless fluorescent lamps. The model is based on passive components and   takes into account the real and reactive lamp power.

The presented model and   its obtention methodology will be an important tool for ballast designers. The behaviors of   the DFIG system with SGSC during network unbalance are described. Abstract—Traditional   voltage-source inverter is limited by its only voltage step-down operation,   while current-source inverter is limited by its only current step-down mode. In order to add an extra boosting flexibility while keeping the number of   active semiconductors unchanged, voltage-type and current-type Z-source   inverters were earlier proposed.

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These new classes of inverters are generally   more robust and less sensitive to electromagnetic noises. The   proposed system is able to meet utilities regulations, IEEE and IEC   standards. The proposed   converter utilizes a hybrid transformer to transfer the inductive and   capacitive energy simultaneously, achieving a high boost ratio with a smaller   sized magnetic component. DC-biased sinusoidal or   square-wave LED drivingcurrent can help to reduce the power imbalance between   ac input and dc output. In doing so, film capacitors can be adopted to   improve LED driver’s lifetime. Abstract—Due   to their high reliability and luminous efficacy, high-brightness   light-emitting diodes are being widely used in lighting applications, and   therefore, their power supplies are required to have also high reliability   and efficiency.

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The proposed converter can boost the voltage of a   low-voltage input power source to a controllable high-voltage dc bus and   middle-voltage output terminals. The technique includes primarily the hybridizing of constant-on,   constantoff, and fixed-frequency control depending only on the required duty   cycle. Abstract—Various   applications, like in underground mines and oil and gas industries, require   remote operation of vectorcontrolled medium-voltage variable speed drives via   a long motor feeder. The use of voltage source inverters in such cases leads   to motor overvoltage and harmonic quality problems. Abstract—This   paper deals with a new family of high boost voltage inverters that improve   upon the conventional trans-Z-source and trans-quasi-Z-source inverters. The   improved trans-Z-source inverter provides continuous input current and a   higher boost voltage  inversion   capability.

In addition, the improved inverter can suppress resonant current   at startup, which might destroy the device. The instantaneous variation   rates of active and reactive powers, by applying each converter voltage   vector in 12 different sectors, are deduced and analyzed. The DM noise spectra are calculated based   on the mathematicalmodel of EMI receiver and the required corner frequencies   of DM filter are obtained. In a dc-distribution system, a bidirectional   inverter is required to control the power flow between dc bus and ac grid,   and to regulate the dc bus to a certain range of voltages. Abstract—An   interleaved boundary conduction mode powerfactor- correction buck converter   that maintains high efficiency across entire load and line range is proposed. PFC stage cannot be switched OFF separately to save power losses.

Ideally, this topology will not inject any lower order harmonics   into the grid due to high-frequency pulse width modulation operation. Abstract—DChybrid   power systems are of interest for future low emission, fuel-efficient   vessels. In spite of the advantages they offer onboard a ship, they result in   a complex, interconnected system, which requires effective analysis tools to   enable a full realization of the advantages. Modeling and simulation are   essential tools to facilitate design, analysis, and optimization of the   system.

PV source under partial shading and   to deliver all that power to the load. Abstract—This   paper proposes amodel of the mutual impedance between ring-type coils used in   domestic induction hobs. Recent developments in these appliances have focused   on flexible cooking surfaces, including adjustable-size or total-active   surfaces. Flexible cooking surfaces are implemented by means of several small   ring-type closely arranged coils, each one supplied by a resonant inverter. The   control of the VSC is normally achieved by an outer voltage feedback loop and   a sinusoidal pulsewidth-modulated inner current loop.

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Abstract—This   paper presents a novel power conversion topology for systems, which include a   boost and bidirectional converters to control the power flows between   sources, batteries, and ultracapacitors. PV   module to enable module-wise maximum power extraction. Besides, the adaptive control of the minimum off time by   the proposed inhibit time control can improve efficiency even at lowac input   voltage. First, the electromagnetic torque ripple is   reduced in commutation and conduction regions. In the former region, the   ripple is suppressed by overlapping commutation control and optimizing the   duty ratio of the active controller. The implementation of the proposed   vector-controlled TPIM is simple compared to the vectorcontrolled SPIM.

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In   the proposed converter, two half-bridge modules with series configuration are   adopted in the primary side to reduce the switch voltage stress to half of   the input voltage. Abstract—The   Z-source inverter is a relatively recent converter topology that exhibits   both voltage-buck and voltage-boost capability. The Z-source concept can be   applied to all dc-to-ac, acto- dc, ac-to-ac, and dc-to-dc power conversion   whether two-level  or multilevel. However, multilevel converters offer many benefits for higher power   applications.

SBI can produce an ac output voltage that is either   greater or less than the available dc input voltage. Also, the SBI exhibits   better electromagnetic interference noise immunity when compared to the VSI,   which enables compact design of the power converter. Abstract—In   this paper, an automatic design tool for a solar energy harvesting IC and   system is developed with visual basic software, and the synthesis tool   employed in this approach can be used to shorten the design time to market. In addition, a smart meter system is developed to measure the solar energy   harvesting system’s information with an online system. Users can thus get the   proposed system’s information at any time and from anywhere. 120 Hz coupling deteriorates system reliability in case of   output load variation.

Abstract—Voltage-type   Γ-Z-source inverters are proposed in this letter. They use a unique Γ-shaped   impedance network for boosting their output voltage in addition to their   usual voltagebuck behavior. Comparing them with other topologies, the   proposed inverters use lesser components and a coupled transformer for   producing the high-gain and modulation ratio simultaneously. IEEE Projects Trichy, Best IEEE Project Centre Chennai, Final Year Projects in Trichy – We Provide IEEE projects 2018 – 2019 , IEEE 2018 Java Projects for M.

Tech, IEEE 2018 Dot net Projects for B. Hence,   the CSI-fed ac machine has a second-order system in the continuous time   domain. This paper presents a design methodology for the closed-loop current   controller of the CSI-fed ac machine drive system. Only part of the load power is processed   by the active switches, reducing the peak current through the switches to   half of the load current, as higher power levels can then be achieved by the   proposed topology. The volume of reactive elements, i. Abstract—Anovel   high step-up converter is proposed for a frontend photovoltaic system.