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IRP Presentation - ECpE Senior Design
IRP Presentation - ECpE Senior Design

... The goal of our project is to install and implement a wind turbine system into the Coover Hall grid. The system is designed to produce 1200 watts when all phases are completed but during our phase the output will be 400 watts. The turbine is an AIR X permanent magnate generator. The inverter is an O ...
Three-phase to Single-phase Cyclo-converters
Three-phase to Single-phase Cyclo-converters

... The circuit of a three-phase to single-phase cyclo-converter is shown in Fig. 30.1. Two threephase full-wave (six-pulse) bridge converters (rectifier) connected back to back, with six thyristors for each bridge, are used. The ripple frequency here is 300 Hz, six times the input frequency of 50 Hz. S ...
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... AC Alternating Current. AC current is a waveform that regularly reverses in positive and negative directions. The U.S.A. electrical power alternates 60 times per second (60 Hz). Europe and other countries have standardized on 50 Hz. AMPERE (or AMP) A unit of electrical current or rate of flow of ele ...
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STEVAL-ISV001V1

... low DC input voltage varying from 20 V to 28 V and is capable of supplying up to 1 kW output power on a single phase AC load. These features are met with a dual stage conversion topology including an efficient step-up push-pull DC-DC converter, to produce a regulated high voltage DC bus, and a sinus ...
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... The EcoView Multi-phase Meter is the multi-phase power meter component of the EcoView System. It is capable of measuring three-phase four-wire 240V wye of up to 1200 Amps. The unit also has the ability to interface to third-party water and gas meters via two ...
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... Built-in Data Logging system ensures that your solar array is operating at its peak power point regardless of age, shading or environmental conditions. A peak Standard 2 Year Warranty operating efficiency of 98% maximizes your PV array’s performance. The MX60’s wide DC input range and 60 amp DC output ...
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... target current value with only 6 or 8 bit, the new dspDrive® performs the entire control with a resolution of 12 bit. The parameters of the PI current controller can be adjusted to the motor and by the user as a function of the rpm. This has the following application advantages:  Very smooth, low-r ...
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... the H-bridge circuits. Each driver may be either driven high (enabled and input is high), driven low (enabled and input is low), or turned off (disabled and input doesn’t matter). • To make the motor spin, the enable input must be high, and one driver in-put must be high and the other low. If the en ...
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... DC sources in order to achieve high voltage at the output [5]. However, the rated voltage of the power semiconductor switches depends only upon the rating of the DC voltage sources to which they are connected [6]. The main disadvantage of multilevel inverters is that they use a high number of power ...
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Electrical Aspects of Electrical Generation from Tidal Currents
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... For a.c. systems the generators being considered are typically of 250 to 750 kW and this would suggest a maximum generation voltage of 1.1 kV. This voltage would generally not be high enough for direct connection to shore and a transformer would be installed at node points where the cable to shore i ...
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... Fig. 1 shows a typical microinverter-based PV system, where the microinverter is integrated to the PV panel, and feeds the collected solar power directly into the utility grid. Usually, for safety purposes and leakage current in gridconnected applications, a high-frequency transformer is embedded in ...
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Transformerless UPS - Chesapeake Mission Critical

... Battery galvanic isolation in the UPS can provide a false sense of security, and should not be depended on as a safety feature • Battery terminals should be treated with the same caution and respect given to any AC terminal in the system If a UPS only has an input transformer, then the battery is no ...
Model Z250C4-SL Competition Four Channel Amplifier
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... component, please consult your local authorized ZAPCO dealer. The safety of your equipment and your vehicle could depend on proper installation. If you do not have a local dealer, please contact the factory directly at (209) 577-4268 between 8am and 5pm Pacific time and we will be glad to assist yo ...
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Variable-frequency drive



A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.
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