An inverter is a crucial investment for homes in areas prone to frequent power outages. It provides a reliable backup power source, ensuring uninterrupted operation of essential appliances. Gone are the days when technology was nascent, and people were looking for brands and local dealers for their knowledge. India has come a long way in […]
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Understanding the BMS A Battery Management System (BMS) is the electronic circuitry that monitors and controls the performance of a rechargeable battery pack. It’s crucial for ensuring safe and efficient operation, especially in lithium-ion batteries, which are widely used in electric vehicles (EVs), energy storage systems, and portable electronics. Critical Functions of a BMS Voltage […]
An inverter is a crucial investment for homes in areas prone to frequent power outages. It provides a reliable backup power source, ensuring uninterrupted operation of essential appliances. Gone are the days when technology was nascent, and people were looking for brands and local dealers for their knowledge. India has come a long way in […]
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Understanding the BMS A Battery Management System (BMS) is the electronic circuitry that monitors and controls the performance of a rechargeable battery pack. It’s crucial for ensuring safe and efficient operation, especially in lithium-ion batteries, which are widely used in electric vehicles (EVs), energy storage systems, and portable electronics. Critical Functions of a BMS Voltage […]
An inverter is a crucial investment for homes in areas prone to frequent power outages. It provides a reliable backup power source, ensuring uninterrupted operation of essential appliances. Gone are the days when technology was nascent, and people were looking for brands and local dealers for their knowledge. India has come a long way in technology, and the best part is the Lithium battery-based Inverter/UPS, which is going to take over from the inverter Battery Tubular-lead-based market. Here are the key factors to consider when selecting an inverter for your home:
Power Rating (VA or Watts):
How to Determine your load: Calculate the total power consumption of the appliances you want to run on the inverter. The VA rating is a big confusion in the market as one should look for the real Wattage of the Inverter as the VA is a confusion in the market BIS has made it compulsory to write the watt of an Inverter/UPS. Because of the confusion created by the companies by giving model names in VA or just plain models with simple 1100,1200 or 15o0 does not clarify the consumer about the actual wattage of the Inverter/UPS. As all the appliances have a rating written on them, one can consider 10% more than that rating when you calculate the total load of the home.
So, 9 Amp multiplied by 220V =1980-Watt consumption of the Treadmill
Waveform Type:
Pure Sine Wave: As far as Inverter/UPS is concerned the only acceptable waveform is Pure Sinewave and one should not even look at Inverter which has any other waveform then Pure Sinewave as that is required to run our LED lights, Fans, TVs, Fridge, microwave Ovens, washing machines, Mixer grinder etc.
Battery Compatibility:
Check compatibility: Ensure the inverter is compatible with Lithium Battery based or one should buy Lithium Battery as a backup as the Lithium battery is wall mountable and life is proven concept. The pollution created by the Tubular Lead Acid battery
Battery backup time: The inverter’s capacity and while buying check the C rating of the battery as the tubular battery comes in C20 capacity and Lithium battery comes in C1 capacity which makes the hell of a difference.
Look for high efficiency: A more efficient inverter consumes less power, resulting in lower electricity bills and reduced heat generation.
Remote monitoring: The Inverter/UP should have the IOT based facility with the dedicated application where you can watch the load and status of the Inverter
Digital Warranty: This is the feature which helps you to maintain the Inverter without any bill or dependence on dealer distributor for the future warranty claims
Automatic transfer switch (ATS): Automatically connects your home’s appliances to the inverter during power outages.
Switching Time: transfer time of the Inverter/UPS is very important to check as it can run computers TVs etc. without any breakup time.
BIS Certification: For India one has to buy the BIS certified Inverter/UPS or having international safety standard like CE or UL certification.
Technology Patent: One should see before buying the Inverter/UPS whether the company has any Technology Patent and if it has the technology Patent then you have the peace of mind.
Safety Features:
Overload protection: Prevents damage to the inverter and connected appliances in case of excessive load.
Short circuit protection: Protects against electrical faults that can lead to fires or injuries.
Battery protection: Ensures optimal battery performance and longevity.
Brand :
Choose a reputable brand: Choose the brand which has the experience in the industry and has created technological innovations
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A Battery Management System (BMS) is the electronic circuitry that monitors and controls the performance of a rechargeable battery pack. It’s crucial for ensuring safe and efficient operation, especially in lithium-ion batteries, which are widely used in electric vehicles (EVs), energy storage systems, and portable electronics.
Critical Functions of a BMS
Voltage Balancing: Ensures that all cells in the battery pack are charged and discharged uniformly, preventing overcharging or undercharging. This is particularly important in lithium-ion batteries, as imbalances can lead to premature aging and reduced capacity. The voltage balancing in each cell of Lithium battery pack is very important to perform as the cells are equalized with each other. The each BMS has the tolerance of measurement as generally it’s 5 to 10% of tolerance but it’s important to look for the BMS which has the lowest tolerance in reading the right values according to which it equalizes the cells with each other. the cell balancing has the two concepts available as Passive balancing and Active balancing. So far, the passive balancing cell equalization is more prevalent in the BMS which has the small battery pack voltages.
Voltage balancing graph in BMS monitoring software
Temperature Monitoring: Detects and prevents overheating or overcooling, which can lead to battery degradation or safety hazards. Lithium-ion batteries are sensitive to temperature extremes, and excessive heat or cold can shorten their lifespan. It depends how many temperature sensors are there in any particular BMS as the bigger cell pack need more temperature monitors and this will keep the Lithium battery pack safe as the role of the temperature sensor is to give command the BMS to stop charging and discharging beyond a certain temperature. At times user keep the Lithium battery in a high temperature environment at which the battery need not to be operated as it may be dangerous for the user to use at that particular temperature, so BMS cut off the battery from the use in that state which is very important for the safety parameters of the lithium battery. The BMS should have the provision of setting through the software for different temperature settings for Charging and Discharging temperatures cut off.
State of Charge (SOC) Estimation: Accurately calculates the remaining charge in the battery pack, providing reliable information to the user or system. This is essential for managing battery usage and preventing deep discharge, which can damage the battery. The State of Charge and State of Discharge shows the battery status as how much is left for charging or how much is left for Discharging. It can be accurately telling the time left depending upon the load or it can give the right estimation of time of charging to the consumer.
State of Health (SOH) Estimation: Assesses the overall health and performance of the battery pack, helping to predict its lifespan and maintenance needs. By monitoring factors like cell voltage, internal resistance, and capacity, the BMS can provide insights into the battery’s condition.
Under Voltage Protection for each Cell: very important protection required in the BMS as BMS is monitoring each cell voltage and the moment the cell voltage goes below the defined cell voltage the BMS has to switch off the battery bank for the protection purpose.
Over Voltage Cell Protection: The preset threshold level setting in the BMS is a must for each cell voltage setting. The moment the cell voltage crosses the threshold upper level limit the BMS has to shut down with the warning.
Safety Protection: Implements measures to prevent short circuits, overcurrent, over-voltage, and under-voltage conditions, safeguarding both the battery and the surrounding environment. These safety features are crucial for preventing thermal runaway and other hazardous events.
Monitoring and Setting Parameters: the monitoring software through the IOT and having CAN RS485 and other communication are very essential parameter these days as the ESS and Automobile chargers will be talking to the BMS for creating another layer of protection. The ESS can switch on and off charging and discharging depending upon the protocol received through the BMS which acts as a double safety layer for the Lithium battery pack.
Why BMS is Crucial in Lithium-Ion Batteries
Lithium-ion batteries are highly energy-dense but can be prone to thermal runaway and other safety issues if not managed properly. A BMS plays a vital role in:
Preventing thermal runaway: By monitoring temperature and implementing cooling measures, the BMS can prevent chain reactions that lead to catastrophic battery failures.
Ensuring safe operation: By protecting against overcharging, over discharging, and other hazards, the BMS helps to maintain the battery’s integrity and longevity.
Optimizing performance: By balancing cells and accurately estimating SOC and SOH, the BMS can improve the overall efficiency and lifespan of the battery pack.
In conclusion, the BMS is an essential component of lithium-ion batteries, ensuring their safe and efficient operation. By monitoring and controlling various parameters, the BMS helps to maximize battery performance, prolong battery life, and prevent potential hazards.
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