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| The difference between portable energy storage power supply and other power supp |
| Release time:2023-01-05 16:38:26| Viewed： |
The difference between portable energy storage power supply and other power supplies with batteries
1、 Portable energy storage power supply
Portable energy storage is a small energy storage device with built-in lithium ion battery. The battery capacity is usually 100Wh-3000Wh, which can stably output AC/DC voltage.
Compared with mobile power supply, it can supply power for high-power household appliances such as hair dryers, electric cars, rice cookers, etc., and can also replace traditional small fuel generators to provide power for emergency relief, outdoor operations, etc. Compared with mobile power supply, it is equipped with more types of interfaces such as USB, Type-C, PD, and supports car charging and solar panel supporting charging. Portable storage is developing towards high capacity and high power, which can cover more mobile application scenarios with the support of powerful functions.
2、 UPS
UPS is a kind of uninterruptible power supply with constant voltage and constant frequency, including energy storage device and inverter as the main component. Its main function is to reliably and uninterruptedly supply power to computer network system or other power electronic equipment through UPS system. The whole network data will not be lost due to power failure.
UPS power supply is widely used in banking system, securities system, telecommunications system, chemical system, power system, airport, hospital, railway, industrial control center and electronic computing center.
Its loads, such as computer equipment, communication equipment, fire fighting equipment, medical instruments, etc., require high power supply quality, emphasizing the requirements of inverter switching time, output voltage, frequency stability, purity of output wave type, etc.
When the mains power input is normal, the UPS will supply the mains power to the load after it is stabilized. At this time, the UPS is an AC electric voltage stabilizer, and it also charges the battery in the machine; When the mains power is interrupted (emergency power failure), UPS will immediately supply 220V AC power to the load through inverter switching, so that the load can maintain normal operation and protect the load software and hardware from damage.
3、 EPS emergency power supply
EPS is an emergency power supply device that allows short-time power interruption. It is mainly aimed at emergency lighting, fire protection facilities and particularly important loads in urban high-rise buildings, especially to solve the problem of lighting power or the lack of a second power supply when only one line of municipal power is available. Only in emergency state can the load be powered.
In China, EPS emergency power supply is mainly used for electrical equipment in the fire protection industry, emphasizing the function of continuous power supply. Used for fire load: fire alarm system, fire elevator, fire pump, smoke control fan, emergency lighting, fire shutter, special obstacle light, etc.
EPS emergency power supply system mainly includes rectifier charger, battery pack, inverter, mutual transfer device, system controller, etc. The inverter is the core, and DSP or single CPU is usually used to control the inverter with SPWM modulation, so that it can obtain good AC waveform output;
? Rectifier charger: it is used to timely charge the storage battery when the mains power input is normal; The role of the inverter is to convert the DC power stored in the storage battery into AC power output when the mains power is abnormal, so as to supply the load equipment with stable and continuous power;
? Mutual input device: ensure the smooth switching of load between mains and inverter output;
? System controller: it can control the whole system in real time, send fault alarm signals and receive remote linkage control signals, and realize remote monitoring of EPS system by upper computer through standard communication interface.
Working principle diagram
4、 Automobile emergency starting power supply
The automobile emergency starting power supply, as the name implies, is used for starting and lighting the automobile. Its characteristic function is to start the car when the car is out of power or cannot be started for other reasons. At the same time, it is one of the necessary products for outdoor travel by combining the air pump with emergency power supply, outdoor lighting and other functions.
In the early days, the power supply used lead-acid batteries. Now, most of the power supply uses high rate lithium batteries. It also integrates the functions of mobile power supply and charging treasure. The battery capacity is not much. Lightweight and portable.
The vehicle emergency starting power supply of lead-acid battery is more traditional. The maintenance free lead-acid battery is used, which has large mass and volume. The corresponding battery capacity and starting current will also be large.
Charging of electronic products, some products also have inverter and other functions.
Lithium polymer automotive emergency starting power supply is relatively new, which is a recent product. It is light in weight, small in size and can be mastered at one hand. This type of product is generally not equipped with an air charging pump, and has the function of overcharging and switching off, and its lighting function is relatively strong, which can supply power for various electronic products.
The lighting lamps of this type of products generally have the function of burst flash or SOS remote LED rescue signal lamp, which is more practical.
5、 Mobile power supply
Mobile power is popular with the rise of touch screen mobile phones. Large screen mobile phones become thinner and thinner, and the battery cannot be disassembled, so mobile power becomes popular.
The mobile power supply is mainly a backup power supply for charging mobile phones, tablet computers and other handheld devices with low power consumption. It is mainly thin and light, with small battery capacity, and has certain limits in use. With the progress of lithium battery technology, the charging speed is accelerated, and mobile power is no longer a necessity for mobile phones.
The difference between portable energy storage and mobile power supply |
