This document discusses a 3-phase PWM inverter. It begins by defining an inverter as an electronic device that converts DC to AC. It then explains that PWM inverters use pulse width modulation technology to control the width of switching pulses and thereby regulate the output AC voltage. The document presents the block diagram of a 3-phase PWM inverter and describes how PWM signals are generated for each phase. It notes that 3-phase PWM inverters are used in applications like solar panels, motor speed control, and HVDC power transmission.

1. 3 PHASE PWM INVERTER
IN SUPERVISION OF–
Mrs. VANI BHARGAVA
PRESENTED BY-
DEEPAK PANDEY(1402721908)
MANISH TIWARI(1402721910)
VIKAS RAGHUVANSHI(1402721916)

2. INVERTER
• A inverter or power Inverter is an electronic
device or circuitry that changes direct
current (DC) to alternating current (AC).

3. Pulse Width Modulation Tech.
• The AC voltage output depend on the width of
the switching pulse.
• The inverters based on PWM technology are
superior in many factors compared to other
inverters designed using conventional
technologies.

4. Why PWM is used?.
• PWM inverter output voltage of the inverter at
the rated voltage(220V AC) (depending on the
country) irrespective of the output load.
• The inverters based on PWM technology has a
lot of protection and control circuits compared
to the traditional inverters.

5. BLOCK DIAGRAM OF 3-PHASE
PWM INVERTER

6. PWM Signal generation For 3 Phase

7. 1-Phase Inverter

8. 3 Phase Inverter

9. Application
• Use in solar panels.
• Electric motor speed control
• HVDC power transmission