Implementation of a Four Quadrant Active and Reactive Power Controlled Three Phase Grid Tie Cascaded H-Bridge Multilevel Inverter

Project Title

Implementation of a Four Quadrant Active and Reactive Power Controlled Three Phase Grid Tie Cascaded H-Bridge Multilevel Inverter

Project Area of Specialization RoboticsProject Summary

Design and implementation of Three Phase Cascaded H-Bridge Multilevel Inverter with less harmonics distortion in the output.
Connectivity or synchronization of inverter with the grid.
Implementation of a Four Quadrant Active and Reactive Power Control i.e.,
Both active and reactive power delivered.
Both active and reactive power consumed.
Active power consumed reactive power delivered.
Reactive power consumed Active power delivered.

Project Objectives

The objective of our project is to efficiently utilize the renewable energy sources by using CHBMLI of 11 levels with less harmonics and distortion and synchronize the invertor with WAPDA on grid and supply the power (active,reactive) to load when WAPDA can not fulfill the power requirements of load means getting the power from grid station or suppling the power to grid station. 

Project Implementation Method

Implementation of modulation technique on LABVIEW
Hardware implementation of Cascaded H-Bridge Multilevel Inverter.
Removal of harmonic content with the help of RL filters at the output of CHB MLI.
Implementation of control technique on LABVIEW and hardware as well.
Hardware implementation of synchronization of multilevel inverter with grid.
Hardware implementation of protection using relays and circuit breakers required for the protection of inverter in case of short circuit or any reverse current flow from grid.

Benefits of the Project

smooth sinusoidal output with least distortion
when load on wapda increases 'we can share the load with solar panels or with anyother renewable through our CHB multilevel inverter
when wapda supply is cut off we can supply load with the inverter.

Technical Details of Final Deliverable

Cascaded H-bridge multilevel inverter
Synchronization of inverter with grid
Consumption and deliverance of active and reactive power from inverter to grid or vice versa.
LabView simulations

Final Deliverable of the Project HW/SW integrated systemType of Industry Energy Technologies RoboticsSustainable Development Goals Affordable and Clean EnergyRequired Resources

Item Name	Type	No. of Units	Per Unit Cost (in Rs)	Total (in Rs)
			Total in (Rs)	76830
IJBT	Equipment	100	400	40000
Lead battery	Equipment	1	15180	15180
Circuit breakers	Equipment	3	500	1500
Relays	Equipment	150	3	450
Resistors	Equipment	100	1	100
Optocouplers	Equipment	50	132	6600
Printed circuit boards	Equipment	6	500	3000
Miscellaneous	Miscellaneous	1	10000	10000