Design and Development of DC circuit breaker for DC microgrid

Project Title

Design and Development of DC circuit breaker for DC microgrid

Project Area of Specialization Electrical/Electronic EngineeringProject Summary

DC microgrids face the more serious fault protection problem than AC systems due to lack of natural zero crossing, which make it difficult to isolate the fault without arcing.?This project intends to design and develop a Solid StateCircuit Breaker(SSCB) for DC Microgrids which can interrupt the current without arcing and having faster response timein comparison to conventional Electromechanical CircuitBreakers. Power Semiconductor Technology has been usedfor Low-Voltage DC Bidirectional Solid State Circuit Breaker applications.

Project Objectives

•         Improved interruption performance            characteristics.?
•         Interrupt the flow of charges without arcing.?
•         Faster response time.?
•         Reduced On-state losses.?
•         Higher tolerance to voltage and current surges.

Project Implementation Method

• We are using power semiconductor technology to achieve our objectives. ?

• We are going to design and develop thyristor based solid state breaker(SSCB) as a protective device for DC microgrids.

• we are working on 2 different topologies 1)Cathode-short MOS controlled thyristor  2)Reverse blocking-integrated gate commutated thyristor? 

Benefits of the Project

• high power efficiency for DC microgrid protection.
• extremely quick current interruption capability
• semiconductorbased circuit breakers can limit the let-through energy and arc hazard exposure in the event of a fault by multiple orders of magnitude.
• power semiconductor devices can execute a much higher number of operations
• greatly increased lifetime for circuit breakers
• because semiconductor devices have no moving parts, they operate without making
  any noise
• IGCT has low inherent loss conduction thyristor properties
• IGCT turns-off like an IGBT in open base transistor mode

Technical Details of Final Deliverable

• Pscad Simulation of CS-MCT
• Pscad Simulation of RB-IGCT
• Prototype of CS-MCT
• Experimental Verification and Testing of Circuit Breaker.

Final Deliverable of the Project Hardware SystemCore Industry Energy Other Industries Others Core Technology OthersOther Technologies Clean TechSustainable Development Goals Affordable and Clean Energy, Industry, Innovation and Infrastructure, Sustainable Cities and CommunitiesRequired Resources

Item Name	Type	No. of Units	Per Unit Cost (in Rs)	Total (in Rs)
			Total in (Rs)	51000
Small Signal P-Channel MOSFET High Temp TO-18 RoHS	Equipment	1	20000	20000
Small Signal N-Channel MOSFET High Temp TO-18	Equipment	1	20000	20000
NPN	Equipment	2	1500	3000
PNP	Equipment	2	1500	3000
Power supply, Wires, Oscilloscope, HV supply	Miscellaneous	1	5000	5000