Abstract
This paper explains about the supercapacitor cell voltage balancing circuits by comparing different topologies with regard to parameters like cost, balancing time, weight of the components used and control of switches. The advantage of supercapacitor over battery made to overcome weight and faster responding source problems. In supercapacitor bank cell voltages differ from each other which effects the performance of the device. Passive circuits consume power from cell for balancing but active circuits consume power from source. Many topologies are considered in this paper for different ratings and with different components. Balancing circuit is selected based upon total number of components in the balancing circuit, many components make circuit less reliable, complex and also increase the cost for balancing.
Highlights
Recent developments in graphene utilisation and manufacturing process made of the Supercapacitor (SC) demand rise [1]
Time of Power pumping demand is generally based on load requirement
SC which deal with individual voltages of 2.62.85V [2] a small variation in voltage due to internal resistance or change in temperature of cell, change in a small part of composition of chemical and so on will lead to imbalance of power pumping
Summary
Recent developments in graphene utilisation and manufacturing process made of the Supercapacitor (SC) demand rise [1]. Time of Power pumping demand is generally based on load requirement. When used in a SC banks a small variations in any parameters mentioned above make them to unequal power pumping [4] These parameters leads to discharge faster and SC cells to get overloaded due to imbalance and pump low power than their designed value. SC balancing circuit are designed based on many parameters consideration taking in account like fast balancing, low source current to balance, easy to operate,. Passive circuits are those circuits which uses resistors and other elements to make balance of bank. Energy to balance cell voltage is taken from source
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