Modeling of three phase inverter for photovoltaic application
A three-phase inverter for photovoltaic application is developed and simulated using MATLAB/Simulink software. By assuming the PV module is ideal at all weather condition, a basic dc source is used as input for the DC-DC closed loop step up converter. A pulse generator takes the role of an MPPT...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English English |
| Published: |
2012
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/2358/1/24p%20PHILIPS%20DHARMARAJ.pdf http://eprints.uthm.edu.my/2358/2/PHILIPS%20DHARMARAJ%20WATERMARK.pdf http://eprints.uthm.edu.my/2358/ |
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| Summary: | A three-phase inverter for photovoltaic application is developed and simulated using
MATLAB/Simulink software. By assuming the PV module is ideal at all weather
condition, a basic dc source is used as input for the DC-DC closed loop step up
converter. A pulse generator takes the role of an MPPT. The switching frequency is in
the range of 500 MHz to 1 GHz at various duty cycles. This output is then used to
switch IGBT inverter at 120° conduction mode. PWM Generator is used to generate
pulses for carrier-based two-level pulse width modulator (PWM) in bridge converter.
This block generates pulses for carrier-based pulse width modulation (PWM) converters
using two-level topology. The block can be used to fire the forced-commutated devices
three-phase bridges. The modulation index is set at 0.6-0.95, while the frequency is set
in rad/sec. The sampling time is in the range of microseconds. The performance of the
system is then further analyzed and proven by calculating the load current, inductance,
impedance, load power, phase voltage and line voltage. |
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