A RELIABLE SINGLE PHASE HYBRID SOLAR INVERTER WITH ANTI - ISLANDING PROTECTION

HYBRID SOLAR INVERTER:

This paper presents analog design, and implementation of a photo voltaic system using an

Interleaved dc-dc converter cascaded with a single-phase invert-er for home application. Maximum Power Point Tracking (MPPT) algorithm is incorporated into the developed controller of the interleaved dc-dc converter to maximize the obtained power from the PV array

In the hybrid solar power system is the combination of solar cell and battery.the battery stores the electrical energy from the photo voltaic. then we can able to converts in to the alternating current.

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ANALOG CONTROLLER FOR HOME APPLICATION OF PHOTOVOLTAIC SYSTEM USING INTERLEAVED DC - DC CONVERTER AND SINGLE - PHASE INVERTER

MAXIMUM POWER POINT TRACKING:

This paper presents analog design, and implementation of a photo voltaic system using an Interleaved dc-dc converter cascaded with a single-phase inverter for home application. Maximum Power Point Tracking (MPPT) algorithm is incorporated into the developed controller of the interleaved dc-dc converter to maximize the obtained power from the PV array. 

Here the photo voltaic panel is directly connected to the dc to dc converter for changing the input voltage.the maximum power point tracking techniques contains fuzzy logic ,neural network algorithm and incremental conductance algorithm.

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SINGLE PHASE INVERTER FOR WIDE INPUT RANGER FOR SOLAR PHOTOVOLTAIC APPLICATION

SOLARINVERTER :

 A Solar inverter is similar to a normal electric inverter but uses the energy of the Sun i.e. Solar energy. A solar inverter helps in converting the direct current into alternate current with the help of solar power. Direct power is that power which runs in one direction inside the circuit and helps in supplying current when there is no electricity. Direct currents are used for small appliance like mobile e phones, MP3 players, IPod etc. where there is power stored in the form of battery.

An inverter produces square waves or a sine wave which can be used for running lights, televisions, lights, motors etc. However these inverters also produce harmonic distortion. Expensive inverters make use of lots of steps to produce a sine wave and thus are found in residential solar inverters. Basically inverters should be a large one so that it supplies enough power to all the necessary appliances.

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DC TO DC CONVERTER WITH LOW INPUT CURRENT RIPPLE FOR MAXIMUM PHOTOVOLTAIC POWER EXTRACTION

DC TO DC CONVERTER:

This paper presents a dc-to-dc converter, which offers continuous input and output energy flow, and low input current ripple, applicable and mandatory for photovoltaic arrays, and maximum power tracking applications. The PV array yields exponential curves for current and voltage where maximum power occurs at the curveâ  €™s mutual knee. Conventional dc-to-dc converters have a relatively high input current ripple which causes high power losses when connected to nonlinear sources like PV arrays.

DC DC CONVERTER

the main purpose of maximum power point tracking to extract the maximum power. in the solar panel we can not able to maintain the constant power.

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Fuzzy Li near Current Booster For Solar Fed Dc Pumps

FUZZY LINEAR CURRENT BOOSTER:

Solar Photo voltaic systems are now widely being used for pumping purposes like drinking and irrigation. If the system has got a battery backup, there will be enough matching between the load and the source. But the systems without battery backup results poor co-ordination between load and source and the panel may even become unable to power the electric motor loads.

the linear current booster which is used to give the current linearly .because it may chance to damage the motor .so that we are giving the current linearly.

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Fuzzy Multiport Dc - Dc Interleaved Boost Converter Supplemented By Hybrid S ystem Of Different Capacities PV And Battery Power System

INTERLEAVED DC DC BOOST CONVERTER:

This paper describes a novel operation performance of a three phase induction motor fed by a Hybrid Distributed Generation System (HDGS). The HDGS is accompanied with different capacities of photovoltaic (PV) array and a battery to supply a fixed power for driving a three phase induction motor. The HDGS employs a novel multiport interleaved DC boost converter for utilizing DG sources in a unified structure.

                                                INTERLEAVED BOOST CONVERTER

In this interleaved boost converter the source is the common but we can take two output  voltages in different.

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Sinusoidal PWM Three - Phase Inverter With A Frequency Scalar Control Of Induction Motor

FREQUENCY SCALAR CONTROL OF INDUCTION MOTOR:
               
               A sinusoidal PWM inverter voltage frequency scalar and vector control induction motor are reviewed. Comparisons of simple control system with sinusoidal PWM control system and sinusoidal PWM control with an additional   third-harmonic signal and gain modulated control signal are carried out.

In this inverter which converts direct current in the alternating current by the sinusoidal pulse width modulation techniques.here changing frequency causes the speed of the motor can be controlled.

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Three Phase Inverter Using SVPWM Method For Solar Electric Vehicle

SOLAR BASED ELECTRICAL VEHICLE:

Solar electric vehicles (SEV) are considered  the future vehicles to solve the issues of  air  pollution, global warming, and the rapid decreases of the petroleum resources facing the current transportation technology. However, SEV are still facing important technical obstacles to overcome.

The IM is fed from three phase inverter operated by a constant V/F control method and Space Vector Pulse Width Modulation (SVPWM) algorithm.

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PHOTO VOLTAIC WITH INDUCTION MOTOR CONTROL

 PV BASED INDUCTION MOTOR:

The sources are conventionally powered synchronous generator and photovoltaic (PV) array. The voltage of the common coupling point is controlled by the automatic voltage regulator of the synchronous generator via which the maximum power point (MPP) of the PV generator is tracked using the open-circuit voltage method.

      Here the photo voltaic generates the power to the three phase induction motor. The photovoltaic output is fully depends upon the solar irradiation .so that we can able to drive three phase induction motor by the PV.

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ARM PROCESSOR BASED THREE PHASE INDUCTION MOTOR

FAULT DETECTION IN MOTOR:

A Motor Current Signature Analysis technique to diagnose the stator inter turn fault in induction motor using wavelet transform and Support Vector Machine as tools. This technique is based on the analysis of stator current under both healthy and faulty conditions.

Here the fault can be detected by the current sensor unit and ARM processor. the function of current sensor is to sense the current .if it is exceed means  it will give protection to the motor.. 

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