توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Stationary Frame Current Regulation of Indirect Matrix Converter with Power Factor Correction under Distorted Supply Voltage
نویسنده(ها): ، ،
اطلاعات انتشار: اولین کنفرانس بین المللی الکترونیک قدرت و سیستم های درایو، سال
تعداد صفحات: ۵
In recent years Indirect Matrix Converter (IMC) topologies have become popular in direct frequency conversion. An IMC possesses high quality performances, such as near sinusoidal input\output waveforms. Moreover, it has several other advantages over the conventional matrix converter, including easier and safer commutation, simple clamp circuit. However, due to off–line input current regulation of the converters, the input displacement factor varies with LC input filters and load conditions. This fact results in non–unity displacement factor and increased reactive power flow. This paper is describing the application of Multi Frequency proportional–resonant (MFPR) controller for an IMC current control. It is shown that the known shortcomings associated with PI controllers, the need for decoupling of threephase system and input power factor correction can be alleviated. Additionally, selective harmonic compensation is also possible with MFPR controllers. Suggested controldiagrams are also presented. The feasibility of the proposed technique has been verified with simulation results.<\div>

۲Pole–Placement Control Strategy for 4–Leg Voltage–Source Inverters
نویسنده(ها): ،
اطلاعات انتشار: اولین کنفرانس بین المللی الکترونیک قدرت و سیستم های درایو، سال
تعداد صفحات: ۶
Four–leg inverters are used in critical applications like UPS systems and satellite earth stations. Consequently, generation of balanced voltages, with sinusoidal waveform, is necessary for these inverters. Most papers dealing with 4–leg inverters suggest classic controllers, such as PI controller, for the system. However, the transient performance of the closed–loop system does not become, accurately, adjustable and acceptable, in some cases. This paper proposes Pole Placement control strategy, via state feedback, for 4–leg voltage–source inverters to adjust the transient performance of the closed–loop system. Simulation results validate the theoretical results and proposed control strategy.<\div>

۳A Novel PSO Based Technique For Optimizing The DOH In Hybrid Electric Vehicles To Improve Both The Fuel Economy And Vehicle Performance And Reduce The Emissions
نویسنده(ها): ،
اطلاعات انتشار: دومین کنفرانس بین المللی الکترونیک قدرت و سیستم های درایو، سال
تعداد صفحات: ۸
In this paper a novel technique is proposed with which the optimal Degree of Hybridization (DOH) can be found with very little computational effort. This technique combines PSO algorithm and HEV simulation tool and its objective is to optimize both the fuel economy and vehicle performance and minimize the emissions, including HC, CO for a hybrid electric vehicle. Advanced VehIcle SimulatOR (ADVISOR) software is used as the vehicle simulation tool. Needed simulations have been carried out on the Toyota Prius which its model is available in the ADVISOR. The results obtained from simulations, prove the validity and efficiency of the proposed technique.<\div>

۴Behavior of Parallel Inverters Under Switches Fault Condition with Parallel Drive Circuitry in Compact Smart Micro Grid
اطلاعات انتشار: هفدهمین کنفرانس سراسری شبکه های توزیع نیروی برق، سال
تعداد صفحات: ۱۱
Complex circuitry of electronic infrastructure of compact smart micro grids with multiplerenewable energy sources feeding the loads using parallel operation of inverters acts as a deterrent indeveloping such systems. Parallel Inverters is one of the best methods to provide great load power. One wayof briefing electronic infrastructure of micro grids, use parallel driver circuit focusing on bootstraptechniques. But so far research has been done in this area that if fault occurs in the switches what happensand will provide the reliability of the driver circuit? In this paper, first the parallel inverter and its drivercircuit are studied and in the next section, their behavior will be analyzed when the switch is erroneous.Digital Simulation in Matlab Simulink is used to show the proposed solutions to this type of behavior and toavoid errors leading to other parts of the system.<\div>

۵Sawtooth Switching Strategy Implementation for Indirect Matrix Converter
اطلاعات انتشار: سومین کنفرانس بین المللی الکترونیک قدرت و سیستم های درایو، سال
تعداد صفحات: ۵
The Indirect Matrix Converter (IMC) concept has been gaining recognition as a promising circuit alternative in recent years. An IMC has separate line and load side converters.Each switching period of line side converter is split into two portions. In each portion, the IMC is equivalent to a conventionalinverter. Thus, output voltage can be obtained through applying a kind of space vector PWM to the load side converter. Conventional space vector pulse width modulation (CSVPWM) employs conventional switching sequence, which divides the zero vector time equally between two zero states in each modulationcycle. If a double edge CSVPWM used in each portion, each switch of the load side converter would have a switchingfrequency twice the sampling frequency. Therefore, busclamping PWM (BCPWM) techniques which use only one zero state in each modulation cycle can be used to reduce the switching frequency. Sawtooth switching strategy; 1) reduces the load side converter switching frequency and losses; 2) has good performance in viewpoint of input\output waveform quality 3) has switching losses independent of output power factor. A novel method for sawtooth strategy implementation using TMS320F2812 processor and Altera Max EPM7128 chip has been proposed and experimental results has been reported.<\div>

۶Impact of Control Strategy and Degree of Hybridization on Performance, Emissions and Fuel Economy of Parallel Passenger Hybrid Cars
اطلاعات انتشار: کنفرانس بین المللی فناوری و مدیریت انرژی، سال
تعداد صفحات: ۵
In this paper, an efficient methodology is proposed to investigate the impact of Degree of Hybridization (DOH) and control parameters of Hybrid Electric Vehicles (HEVs) on theirperformance, emissions and fuel economy. This study can be very helpful especially on optimal selection of DOH, which results inimproved performance, maximum levels of fuel economy and minimum emissions. The procedure is very simple and at thesame time very efficient. A small–size parallel passenger hybridcar has been selected as the test vehicle in the simulations and the ADVISOR software has been used as the simulation tool. Simulation results clearly confirm the validity of proposed methodology and theoretical concepts.<\div>
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