In the early 1970s, due to the problem of energy shortage because of the oil crisis, people realized the instability and limitation of conventional fossil energy supply. So people began to seek clean and renewable energy. As a renewable and pollution-free natural energy, wind energy has attracted people's attention.
The popularity and development of wind turbines are extremely rapid. The effect and function of wind turbines are also huge. If we can master some common fault judgments when using wind turbines, we may reduce unnecessary losses when the wind turbine fails. Next, we will introduce the fault diagnosis of wind power generation in detail.
The maintenance of the solar power system is divided into daily inspection and regular maintenance. Maintenance personnel must have professional knowledge, a high sense of responsibility and a serious attitude. The overall operation of the photovoltaic power system should be checked every day, and the display data of the equipment and measuring instruments should be carefully observed. Patrol inspections should be carried out regularly, and inspection records should be kept.
A solar inverter is a power conversion device that converts direct current from a battery to alternating current. So, how to choose a solar inverter for home PV system?
The situation of the home PV system is complicated. If the components are short-circuited and grounded and the after-sales maintenance cannot be carried out immediately, it is likely to cause a fire or a safety accident. At this time, turn off the DC switch to prevent further escalation of the fault.
The most common use of a solar charge controller is to provide load power for solar inverters and to charge energy storage devices in solar power systems. Before buying a solar charge controller, we need to have a general understanding of this product, so as to choose a great solar charge controller with the most favorable price.
The solar inverter converts DC power into AC power, and the core of the inverter device is the inverter switch circuit. The circuit completes the inverter function by turning on and off the power electronic switch. The on-off of power electronic switching devices requires certain driving pulses, and these pulses may be adjusted by changing a voltage signal to generate and adjust the pulse circuit.
A pure sine wave inverter can convert direct current to alternating current. Unlike square wave inverters and modified sine wave inverters, pure sine wave inverters produce waveforms similar to those we get from commercial grid systems and can drive a variety of electronic devices including inductive loads. So, how to choose a pure sine wave inverter?
The input port and output port of the solar inverter are designed with an EIM filter. The purpose is to control EMI transmission interference and only allow the use of ideal low-pass current at DC and power frequency. In addition, it is a bidirectional filter, which can not only To avoid noise interference from the inverter to the outside world, and to prevent the introduction of external interference into the system, the filter includes X and Y capacitors and common mode inductors. The common mode inductance is on the same magnetic ring, which is composed of two windings with opposite directions and the same number of turns, so that the magnetic field generated when the flow passes through the windings is superimposed, and presents a large inductive reactance to the interference current. Mode interference, the common mode capacitor will introduce the common mode current to the ground without passing through the power grid.
Application area: This mode is used in areas with no or less electricity. Mains electricity is expensive and frequent power outages. It is important to note that the inverter will switch to utility power when it needs to use the battery to a lower value. The advantage of this mode is that the solar energy can be fully utilized. The disadvantage is that the user's electricity consumption cannot be fully guaranteed. When the battery voltage is low and the mains is abnormal, no electricity can be used. If the user's demand for electricity is not particularly high, this mode can be selected.
Wind turbine is an important equipment in the process of energy conversion. Shaft is a very important part of wind turbine. And the shaft wear of wind turbine is a common problem of this equipment. Once this problem occurs, the user needs to face a series of problems in disassembly, return to the factory or repair welding.
Each item has a different lifespan. How long the service life of wind turbines is, this is also a question that many people want to know. Generally speaking, the service life of wind turbines is more than 20 years. But if we can maintain the wind turbine, its service life can be extended.
Solar inverters are used in solar energy systems to convert direct current (DC) to alternating current (AC) to provide stable power for household appliances. Solar inverters are mainly divided into off-grid solar inverters and grid-connected solar inverters. Grid-tied inverters must be connected to the grid to work, while off-grid inverters can independently generate electricity anytime, anywhere without being connected to the grid.
The solar charger can also be used for MP4 and MP3 players, digital cameras, laptops, headphones, smart watches and other USB devices. Solar charger is easy to use, but if you want to make the most of solar charger and your mobile phone, please continue to read. There are two options, charging directly with solar energy or charging with a battery charger.
With the development of the technology, more and more people place solar generators in their homes. Let us start with the basics. Solar generator power is measured in watts. All you have to do is calculate the total watts you use each month. Add another 10% or 20% and you'll know how much generator power you need.
There are a plethora of different solar generators out there on the market. Many people want to get better prepared for blackouts, hurricanes, storms or just want better camping, RV or tiny house options.
How to Use UPS?
Wednesday, January 12, 2022
The role of uninterruptible power supply is very big, when there is no electricity, such as ups inverter, you can use battery power, when there is electricity, it is a voltage regulator, to protect the connected equipment. It has a battery inside that protects and charges the battery. Today, I will introduce how to use uninterruptible power supply in detail.
A voltage converter or transformer is an electrical device that takes power from a wall outlet and increases or decreases energy, so we can use electrical equipment in different regions or countries. Power converters allow you to run your equipment at the same speed as when it was manufactured, allowing you to use your equipment safely and comfortably anywhere in the world. First, knowing that while higher voltages will never damage your device, using underpowered converters can easily damage your device. How do you choose the most suitable voltage converter?
Monitoring the solar Photo-Voltaic system is a very important matter because it shows you how much electricity saving you got from your solar system, in addition, it assists you knowing if the system is running properly producing its rated power or it may have a fault, so you can take a rapid troubleshooting action.
The sun light is a range of spectrum; it consists of units called photons. When these photons strike the solar cell surface, they can be absorbed by the cell or reflected by the cell. The absorbed amount of photons will be converted to electricity as described above, and the reflected amount are just a waste with no benefits. So, when solar cell manufacturer wants to increase the solar cell efficiency, he is trying to reduce reflected amount of photons, and increase the absorbed amount of photons, and nowadays there are ongoing different technologies aim to increase the solar cell efficiency, and moreover, they are developed day after day via scientists and original designer manufacturers.
When installing solar photo-voltaic (pv) system on the roof of your new home, you need to be careful about shading.
