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:
What are the basic contents of lithium battery manufacturers' smart batteries?CR2032 button cell bat
Classification of low-temperature lithium batteries
Last article:lithium ion battery 18650 price
Next article:Nickel Hydride No. 5 batteries
Popular recommendation
energy storage battery for solar system wholesale
2023-05-10521133 battery wholesaler
2023-03-2218650 battery pack 12v
2023-05-09601848 battery Manufacturing
2023-03-22connector for energy storage battery Processing
2023-05-10Coin Battery LR 927
2022-10-15Home energy storage battery FBC-HS02
2022-11-08No.7 card-mounted carbon battery R03P
2023-06-286F22
2022-12-01Coin Battery LR 521
2022-10-15R03P
2023-03-27Lithium Battery GN12-50
2022-08-19401030 90mAh 3.7V
2022-07-01902030 500mAh 3.7V
2022-06-2718650 2600mAh 3.7V
2022-06-20lithium ion battery cells 18650
2023-06-25home solar energy storage lithium battery
2023-06-2518650 battery rechargeable
2023-06-2518650 lithium ion battery 3.7v
2023-06-251800mah 18650 battery
2023-06-25Capacitor batteries by electrolyte type
2024-05-213.2v 300ah lifepo4 battery.Can polymer lithium batteries be shipped or not?
2023-11-08What is polymer lithium battery
2024-04-30Market Prospects of Soft - pack Lithium Batteries
2025-03-19Deep Analysis of Military Lithium Battery Standards
2024-06-07How to deal with the ignition problem of lithium ion batteries?
2023-02-11Lithium battery sharing three major core functions of BMS
2023-02-07How to understand the safety issues of polymer batteries?48v lithium golf cart battery
2023-09-098V lithium ion battery charger
2022-12-06The advantages of medical device and equipment application of lithium batteries
2023-02-14