Lithium Battery 3.7V Lithium Polymer Battery 3.2V LifePo4 Battery 1.2V Ni-MH Battery Button Coin Battery
3.7V Battery Pack 7.4V Battery Pack 11.1V Battery Pack 14.8V Battery Pack Other Battery Pack
Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .
Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales
Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.
release time:2024-04-08 Hits: Popular:AG11 battery
String inverter solution: for rooftop photovoltaic power plants
In recent years, national policies have shifted from initial investment subsidies to kilowatt-hour subsidies. How to reduce power station operation and maintenance costs, increase power generation, and improve the overall profitability of power stations has become a new topic we are facing, and we need to explore in-depth in the form of power station construction.
Disadvantages of traditional centralized solutions
After actual project research and discussions with EPCs, design institutes and photovoltaic experts, we analyzed and summarized the problems encountered in the centralized inverter networking solution during the design, construction and operation and maintenance of rooftop power stations. The more prominent ones are the following 6 types of questions:
1. The most important issue in power station construction is safety. The centralized solution uses a DC combiner box. Due to the built-in DC branch fuse, there is a risk of continuous fire because the solar panels will be in working condition as long as there is light.
For distributed rooftop factories, it brings serious safety risks. Not only will the economic benefits of the power station itself be affected, but more importantly, it will affect other equipment in the factory. Bringing very heavy losses to the owners.
2. For irregular roofs, a single 500KW inverter cannot make full use of the roof area. The inverter is often overloaded or underloaded, or overmatched or undermatched.
3. On roofs with multiple orientations, the panel is partially shaded, resulting in inconsistency in the strings. Single-channel MPPT results in relatively low power generation; at the same time, the mismatch loss of each string will also lead to a loss of power generation;
4. The inverter requires maintenance by professional engineers. A single inverter failure has a great impact on power generation and poses a huge challenge to the safety of maintenance personnel. At the same time, there are many types of spare parts, and it takes more than 3 days to locate and repair the fault, which has a serious impact. Customer power generation revenue. The DC combiner box has a high failure rate and cannot monitor each string, which increases fault location time. Due to the volatilization of fuses, the failure rate and maintenance costs are high, requiring regular replacement and maintenance. The lines are complex and there are many joints processed on site, so the failure rate is high. After some projects have been in operation for 1 to 2 years, the effective power generation rate is lower than 90%; the picture below shows a burnt DC combiner box in a power station.
5. The centralized solution requires an inverter room and corresponding civil engineering works, as well as corresponding fans, air ducts, smoke sensors, temperature sensors and other equipment, which increases construction complexity, initial investment and operation and maintenance costs;
6. Centralized inverters require forced air cooling, and the computer room consumes a lot of power, with an average of at least 300W. It requires regular dust sweeping, fan maintenance and dust filter replacement;
Read recommendations:
Polymer battery.703048 polymer battery
3.2v 300ah lifepo4 battery.Can polymer lithium batteries be shipped or not?
Last article:lithium ion battery 18650 price
Next article:Nickel Hydride No. 5 batteries
Popular recommendation
AAA NiMH batteries price
2023-03-22lithium battery for energy storage manufacture
2023-05-10402427 lipo battery
2023-03-223.7v 2200mah 18650 lithium battery
2023-03-22NiMH No.7 batteries
2023-03-22LR20
2022-12-07402427 260mAh 3.7V
2022-07-0118650 800mAh 3.7V
2022-08-1914500 450MAH 3.7V
2022-10-1518650 2400mAh 3.7V
2022-08-19LR03
2022-07-23801620 180mAh 3.7V
2022-08-19Coin Battery CR 927
2022-09-2718650 2500mAh 3.7V
2022-06-2018650 800mAh 3.7V
2022-06-27battery 18650 rechargeable
2023-06-259V USB 1.5V 1000mWh
2022-06-27703048 lipo battery
2023-06-25lithium lon battery energy storage system
2023-06-25r03 battery
2023-06-25Introduction to Lithium Battery
2024-05-2218650 battery 3.7v 6000mah.Lithium battery waterproof grade
2023-10-11Battery specific energy and specific power.18650 battery 3.7v 2000mah
2023-08-14Customized process for lithium batteries
2024-05-17powerwall lifepo4 battery for solar system.What is the lifespan of lithium-ion batteries?
2023-11-22Introduction to lithium battery conductive coating product introduction
2023-07-15Lithium ion battery manufacturers teach you how to test battery capacity.household energy storage li
2023-04-14Drone battery storage.energy storage system lithium battery sales
2023-05-13Lithium battery positive pole material.702535 lipo battery
2023-05-19What are the characteristics of lithium iron phosphate batteries?solar energy battery storage system
2023-05-17