Project Presentation

Project Supervisor:

Muhammad BaseerGroup Members: Waqas Ahmed

(SP09-EPE-110)

Annas Chand (SP09- EPE-055)

Mohsin Mehmood (FA08-EPE-081)

Matrix Converter

CharacteristicsSimple and compact power circuit. Generation of load voltage with arbitrary

amplitude and frequency.Sinusoidal input and output currents.Operation with unity power factor.Regeneration capability.No storage element is required.Fewer input currents harmonics.One stage conversion(AC/AC) instead of

(AC/DC/AC).1/3 lower loss then conventional system.Output power is 86% of input power.

Three Phase Matrix Converter

ObjectivesHigh voltage Conversion(AC/AC).Variable Frequency like cycloconverter.

Single phase MC

Conduction for +ve cycle

Conduction for –ve cycle

Simulation of Single phase MC

Stator voltage

0 2 4 6 8 10 12 14

x 105

-1.5

-1

-0.5

0

0.5

1

1.5

Rotor Frequency

0 2 4 6 8 10 12 14

x 105

-10

-5

0

5

10

15

20

25

30

35

Pic (Peripheral Interface Controller)MicrocontrollerWide range of interfaces including  A/D(up to

~1.0 MHz),programmable comparators, PWM etc

Built in clock oscillator with selectable speeds.

Different pin configuration 8/16/32 Bit Timers.External memory interface USB.

IGBT vs MOSFETIGBTs are preferred in…

•Low frequency applications (<20kHz) • Operation at high junction temperature is allowed (>100°C) •Low duty cycles • High-voltage applications (>1000V) • >5kW output power

Mosfet are prefered in.

•High frequency applications (>200kHz) • Operation at high junction temperature is allowed (<90°C) •Long duty cycles • Low-voltage applications (<250V) • < 500W output power

Proposed Tools

Space Vector Modulation Space Vector Modulation refers to a special

switching sequence which is based on the upper switches of a three phase matrix converter.

SVM treats a sinusoidal voltage as a phasor or amplitude vector which rotates at a constant angular frequency, ω.

This amplitude vector is represented in d-q plane where it denotes the real and imaginary axes.

Continue… SVM treats all three modulating signals or voltages as

one single unit, the vector summation of three modulating signals or voltages are known as the reference voltage, V which is related to the magnitude of output voltage of the switching topologies.

The aim of SVM is to approximate the reference voltage vector, Voref from the switching topologies.

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Thank youfor your

Concentration