Hybrid UPS based on Supercapacitor Energy Storage and Adjustable Speed Generator for Military and Medical Applications

Project Title

Hybrid UPS based on Supercapacitor Energy Storage and Adjustable Speed Generator for Military and Medical Applications

Project Area of Specialization Electrical/Electronic EngineeringProject Summary

Uninterruptible Power Supply (UPS) is used to guarantee the reliability of backup power in Military and Medical Applications, Where a power shortage for a second or two could cause huge loss. Conventional 
ESS for UPS is not too good due to low-power density and limited charge/discharge cycles of lead-acid 
batteries. So we have proposed Supercapacitor based UPS due to the large capacitance value and 
excellent charge-discharge performance of SC(about 20% of a common battery). For best option instead 
of using lead-acid batteries based UPS, we are proposing Hybrid UPS based on Supercapacitor Energy Storage and Speed Generator. Proposed system is based on an on-line (double conversion) UPS. The first one is a static energy storage system based on supercapacitor bank. The second energy source is adjustable speed generating system supplying DC link voltage. Both these sources will provide power to the heavy equipment used in Military bases and Medical places like Operation theatre, ICUs etc. A control concept of the UPS operation, according short and long failure of the supply utility voltage is developed. The H-UPS will be designed, built and tested. The control unit will be built using  based on PIC microcontroller. The design and system stability tuning will 
be achieved using MATLAB software.

MATLAB SIMULATION MODEL:

Project Objectives

• Using Supercapacitors as an energy storing device in our project is our main goal as well as the switching of power between the three sources like supply from the Grid Station, the Adjustable Speed Generator and the Super Capacitor. 
• Connecting Supercapacitor banks and Adjustable Speed generator in parallel with the line 
voltage to provide continuous power to the load without any interruption.
• The High Power providing, Short charge time, Long service life, Good temperature characteristics, Energy 
conservation, and Green environmental protection is the core of proposing and designing of this project.

•The main purpose and target areas are the Military and Medical Areas. In Hospitals, where electricity failure for a second can cause severe problems and can lead to life loss of human beings in hospitals.

•Whereas, in Military bases, the loss of power for short time is dangerous for several reasons like security etc.

Project Implementation Method

Block Diagram of Project:

         

Flow Chart:

         

• Calculation of parameters of the components using in the project.

AC-DC Converter Circuit Diagram:

DC-DC Converter Circuit Diagram

DC-AC Converter Circuit Diagram:

• Designing of bridge rectifiers.
• Designing of inverters.
• Designing of suitable Supercapacitor bank.
• Designing of DC-DC converter(Chopper).
• Designing of Control unit of all system using microcontroller.

• Laboratory tests.

Benefits of the Project

• The most important use of H-UPS is in the Operation Theatre(OT) during electricity short 
fall until the generators get ready to give power to the heavy equipment in Operation Theatre (Load).
• In industries, during load shedding, it will be beneficial in providing instant high current until other power sources get ready.

•Another target area is Military bases. Where it would be more beneficial because it can lighten up high power equipment until the main supply or Generator gets ready.
• More important features are short charge time, long service life, good temperature characteristics, energy conservation, and green environmental protection.
• Another most important feature is, when people use this high density supercapacitor based Hybrid UPS, will be beneficial for the country economy in the sense that this system could be made on national level and could be import internationally to earn.

Technical Details of Final Deliverable

Hardware/Software Integrated system controlled by PIC microcontroller control system. Simulation will be done using MATLAB software. After that all the system will be implemented in Hardware form and then will be assembled and tested in lab.

Code:

Final Deliverable of the Project Hardware SystemCore Industry MedicalOther Industries Education , IT , Manufacturing , Transportation , Media , Health , Telecommunication Core Technology Clean TechOther Technologies OthersSustainable Development Goals No Poverty, Affordable and Clean Energy, Decent Work and Economic Growth, Industry, Innovation and InfrastructureRequired Resources

Item Name	Type	No. of Units	Per Unit Cost (in Rs)	Total (in Rs)
			Total in (Rs)	75000
Converters	Equipment	4	3750	15000
Inverters	Equipment	3	3000	9000
Super Capacitor Bank	Equipment	1	15000	15000
Speed Generator	Equipment	1	25000	25000
Control System	Equipment	1	3000	3000
Wiring	Equipment	1	3000	3000
Miscellaneous	Miscellaneous	1	5000	5000