Case Study on Ni-MH Battery

[Audio] HELLO ; GOOD MORNING,MY NAME IS Vanukuri HARSHA VARDHAN REDDY. I AM HERE TO DISCUSS ABOUT MAJOR PROJECT ,TITLE CALLED Case Study on Ni-MH Battery.where we can discuss about ni-mh battery in detail.

[Audio] THE TOPICS TO BE COVERED IN THIS PRESENTATION ARE Abstract Introduction Modes of operation Control Scheme Simulation Results Conclusion.

[Audio] THE ABSTRACT OF THIS PROJECT In the current world, where we depend on a variety of systems and technologies, batteries play a critical role. They are necessary for supplying portable power for cellphones, laptops, and other mobiles as well as for regenerative energy sources including solar and wind, electric cars, And home energy storage systems. Rechargeable nickel-metal hydride (NiMH) batteries have grown in significance as a result of their many advantages due to great performance, Extended life, and eco-friendly alternative to throwing away batteries, these batteries have grown in popularity for years. As a result, we examine in this research how well a Ni-MH battery performance when coupled to a boost converter for boosting and battery state of charge.

[Audio] THIS IS THE INTRODUCTION TO OUR PROJECT System for managing energy A technology that makes it possible to store energy for later uses is an energy storage system (ESS). It is a crucial element in the development of renewable energy sources, one way to address the intermittent production of sources such as solar and wind is to store excess energy during periods of low demand, and then utilize that stored energy to meet demand during times of high demand. ESS can assist regulate the supply of electricity and balance the grid. Batteries, flywheels, compressed air systems, and pumped hydro storage are s few of the many distinct types of ESS. Batteries, which store electric energy in a chemical form for later use, are the most widely used ESS technology. Some types of ESS, including flywheels and compressed air systems, store energy and mechanical forms as compressed air systems and flywheels, o in forms of potential energy, such as pumped hydro storage. As the world moves rapidly towards a future controlled completely by environmentally friendly power sources interest in energy capacity gadgets rising rapidly as well as supporting the Cornmeal joining of environmentally friendly power essays.May likewise bring down top interest offer crisis reinforcement power and upgrade the effectiveness of ESS will increment as the expense of innovation keeps on dropping contributing to the improvement of a more reasonable energy framework..

[Audio] At the point when required a battery hence compounds over 2 electrical energy it is one of the most utilized kinds of energy stockpiling fueling anything from a little electronic device to enormous scope electric vehicles and power frameworks batteries or compromised of at least one cell that each has a positive and a negative cathode isolated by an electrode light. As you charge a battery synthetic response happens that permits particles to move to start with one terminal and then onto the next putting away electrical energy in the process as a battery is discharged the particles return to their Cortana areas in the put-away energy is delivered as electric flow. [9]There are a few kinds of batteries each with its arrangement and applications lead corrosive, lithium-particle, cadmium, and nickel metal hydride batteries are the two most generally utilized sorts of batteries. Lead storage cells are among the oldest & most extensively usable types of batteries. They are commonly utilizing automotive applications and backup power systems. They are generally expensive and deliver strong currents, making them ideal for starting engines. Lithium-ion batteries are becoming increasingly popular because of their high-quality energy density, extended cycle life, and low self-discharge rates. They're common in portable electronics, electric cars, and energy storage systems. Nickel-cadmium and nickel-metal hydride batteries are commonly utilized in portable electronic devices and power tools. They have a better energy density than lead-acid batteries and supply larger currents. Battery technology is always growing and improving, with continual research to boost energy density, lower costs, and enhance safety. As renewable energy sources such as solar and wind become more prevalent, the requirement for energy storage devices to balance the grid and provide backup power is likely to expand..

[Audio] THE TOPOLOGY OF THIS PROJECT IS NI-MH BATTERY is a Rechargeable nickel-metal hydride (Ni-MH) batteries are commonly used in various electronic devices., including cameras, toys, and portable music players. These batteries outperform the nickel-cadmium (NiCd) batteries that came before them in terms of energy density and longevity. NiMH batteries are composed of an alkaline electrolyte solution, a hydrogen compound negative terminal, and a positive cathode made of nickel oxyhydroxide. During the charging process of NiMH batteries, the hydrogen-absorbing alloy negative electrode takes in hydrogen while the nickel oxyhydroxide positive electrode releases oxygen. This sparks a chemical process that causes the battery to store electric energy. NiMH batteries have the benefit of being able to maintain their charge for extended periods which makes them perfect for usage in inactive gadgets. As they don't contain any harmful metals, they are also more ecologically friendly than NiCD batteries. NiMH battery so has certain drawbacks; thorough however they gradually lose their charge even while not in use since they are more likely to self-discharge. They are also less powerful and have lesser capacity than other battery kinds, as such lithium-ion batteries. NiMH batteries are a suitable option for many users, especially in low-drain devices where longer battery life is needed. these might not be the ideal option for high-power, high-drain devices, though, since they might not be able to supply enough energy to keep the item operating for extended periods.

[Audio] Boost converters are DC-to-DC converters that increase the input voltage to higher output voltages, and they operate primarily in two modes: continuous conduction mode (PCM) and Broken conduction mode (BCM). Persistent conduction method: boost converter can work in persistent condition mode PCM in which the inductor current never arrives at zero during an exchanging cycle in CCM, the inductor receives the input voltage and stores energy as a magnetic field. The inductor delivers this accumulated energy to load when the adjustment is switched on, increasing the o/p voltage. The inductor continues to give energy to the load even after the switch is turned off, causing a constant flow of current through the inductor..

[Audio] The working scheme of this project The Ni-MH battery was used mainly in 2 operations Working * Procedure of Ni-MH battery The battery is associated with constant load and parallel with the dc machine where a rate limiter for the signals rises and down. Having a relay with some limitations is linked to the battery. At the point when the territory of charge (soc)the of battery goes below 0.1[10%], a negative burden force of 200Nm is functional to the machine Thus it goes about as a creator to re-energize the battery. At the point when the SOC was more than 0.9[90%], the heap force is eliminated So just the battery supplies the constant load..

[Audio] * performance checking of Ni-MH battery associated with step-up converter: In this mode, the Ni-MH cell will be associated with a boost converter in which there are PID controller, MOSFET, and DIODE mask are there. Which relational operators are there in the step-up converter these all are connected to a dc voltage source and the performance of the battery such as soc, current, and voltage are measured using a scope..

[Audio] THESE ARE THE SIMULATION OUTPUTS OF THIS PROJECT , FIGURE 1 ONE SHOWS voltage, soc, speed, and armature current waveforms which are connected to the scope where both battery and machine are associated parallel. Fig 2 shows waveforms of dc machine in different with different parameters like electrical torque, field current, armature current, speed.

[Audio] FIGURE 3 SHOWS voltage, current, and soc waveforms of the battery And Fig 4 shows current, voltage, soc, the voltage of Ni-MH battery connected to the step-up converter.

[Audio] The conclusion of the project is In this paper, we went through the Ni-MH battery which we placed in different conditions like associating it parallelly with the dc machine and boost converter. The speed, soc, current, and voltage are rising and falling depending upon the time where we saw that from the simulation result. We use a rate limiter and relay for the Ni-MH battery model which is connected to the dc machine and the PID controller in the boost converter which is connected to the Ni-Mh battery.

[Audio] Thank you all for this opportunity. Thank you.