voltage source converter is simulated. In this control system‚ a generalized pulse width modulation technique is used to generate firing pulses for both the converters. Installing the UPFC makes it possible to control an amount of active power flowing through the line. Simulations were carried out using MATLAB and PSCAD software to validate the performance of the UPFC. Keywords: DC voltage regulation‚ Flexible AC Transmission Systems (FACTS)‚ feed back control‚ high power PWM converters‚ real and
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Abstract-In this we use a piezoelectric crystal which gives variable voltage output depending upon the vibrations given on the crystal surface. This voltage is converted to current using suitable converter. Now the current is passed through a memristor‚ which has a corresponding resistance value. Whenever the current increases‚ the resistance value increases and the change in resistance is detected using a microwave generator connected at the end. Using the microwave level‚ an external device (similar
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conversion. That same modem can receive incoming audio-frequency tones that were transmitted from the twisted pair telephone line‚ and convert those tones into the defined levels of digital signals. If an analog-to-digital converter is positioned after a digital-to-analog converter‚ within a communications circuit‚ the digital signal output will be identical to the digital signal input (Rouse‚ 2005). An analog signal may also be improved by using an analog-to-digital conversion method. The analog
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concrete mixer in view of the present situation of construction sites. (1)Concrete raw materials processing Concrete management apparatus includes concrete silo‚ concrete measuring scale and material proportioning screw controlled by frequency converter. The measuring scales and radar sensor is used for measuring the amount of material in the silo. In order to avoid bringing a lot of dust‚ concrete mixer must also be equipped with air filter and automatically remove dust in the air by using vibration
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Global Journal of Researches in Engineering Electrical and Electronics Engineering Volume 13 Issue 7 Version 1.0 Year 2013 Type: Double Blind Peer Reviewed International Research Journal Publisher: Global Journals Inc. (USA) Online ISSN: 2249-4596 & Print ISSN: 0975-5861 A Review on UPQC for Power Quality Distribution System Improvement in By B. Gopal‚ Pannala Krishna Murthy & G.N. Sreenivas I Khammam Institute of Technology & Sciences Abstract - In recent years‚ Power engineers
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a) Identify the major variables that you controlled or measured in this investigation. What type of relationship do these variables have with each other? The variable that we manipulated was the fuel to oxygen ratio and the variable that we observed was how efficiently the fuel burned in each of the mixtures. The efficiency of the combustion depended on the fuel to oxygen ratio. If mixture was fuel lean the combustion reaction would produce less soot and smoke. If the mixture was fuel rich‚ an incomplete
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WRS 062 ASSESSMENT ARTICLE EVALUATION SAMPLE (9%) Instructions: Choose any three articles you have found about your topic. Write the title of the articles in the columns at the top. Complete the template below using the information from the articles. Questions have been given about each of the five criteria. You may use these questions as a guide to help you fill in the template. You need to explain or elaborate your answers. CRITERIA Title of Article 1 A review of energy sources and energy management
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TABLE OF CONTENTS Chapter1: introduction 1. Introduction 2. Spindles 3. Classification of spindles 4. Parts of spindles 5. Failures in spindles Introduction 1.1)Introduction A machine tool is a powered mechanical device‚ typically used to fabricate metal components
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GSM BASED CAR SECURITY Working Principle:- The GSM based on car security system will consists of main features say the announciation protection against :- Low fuel level in a fuel tank. Excess engine temperature. Over-speed announciation. Awareness about accidents Awareness about fire hazardous incidents. Automobile dialing with GSM mobile. Ignition locking All these actions will be taken by CPU i.e. AT89C51 and communicational to respective person so that he can take an appropriate action
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blasting cool air on the steel to the molten iron. His process for this also called the pneumatic conversion process was created in 1856. This process was a new way to mass produce steel inexpensively. Henry’s most important was the Bessemer converter. This converter was able to produce 30 tons of high grade steel in just 30 minutes! At the time‚ this was such a huge step in the steel industry and the birth of the steel industry as we come to know it today. Bessemer’s famous one-step process for producing
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