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.
No matter what kind of tools, there will be a life limit. The service life of wind turbines is usually twenties years. But does this mean that we can use wind turbines without worrying about their maintenance? The answer is negative. Even if the lifespan of a wind turbine is twenties years, we still need to do some regular maintenance. Today we will introduce the basic maintenance of wind turbines.
Wind turbine is an important equipment in the process of energy conversion. The shaft is a very important part of the wind turbine. The shaft wear of wind turbines 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. The repair cycle of wind turbine shaft wear is relatively long. Please look at two classic cases of wind turbine shaft wear.
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.
With the rapid development of renewable energy technology, solar energy, as a clean and renewable energy source, is gaining increasing popularity. In solar power generation systems, off-grid inverters serve as critical components, with their performance directly impacting the overall system's efficiency and stability. This article will delve into the topic of "How to test off-grid solar inverters," exploring the working principles, schematic diagrams, and testing procedures for off-grid inverters.
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.
As energy technology advances and renewable energy becomes more widespread, an increasing number of households and businesses are opting to install solar generators. Whether to reduce electricity bills, increase energy independence, or provide backup power during outages, solar generators have become an ideal choice for many. However, determining the appropriate size of a solar generator for your needs is a crucial step. This article will delve into how to calculate and choose the right size of a solar generator for your home or business, ensuring it meets your power requirements and operates efficiently.
In today's pursuit of environmental sustainability, renewable energy, and portability, portable solar generators are emerging as a new energy solution, gradually becoming part of our daily lives. From outdoor activities and household emergencies to power supply in remote areas, portable solar generators are becoming the go-to choice for many due to their unique advantages. However, with the vast array of products available on the market, how do you choose a portable solar generator that suits your needs? This blog will provide a detailed analysis to help you make an informed decision.
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.
In the era of globalization, international travel and relocation have become commonplace. Voltage converters or transformers, as essential bridges connecting different power systems, play a crucial role in ensuring that electronic devices function properly and safely. Selecting and using the right voltage converter is vital for convenience and user safety. This blog provides a professional guide on how to choose the most suitable voltage converter, ensuring that your devices can operate smoothly anywhere in the world.
Due to wind data is essential for documenting eddies and protecting wind turbines, wind turbines need accurate wind operating information in order to operate safely. 300W wind turbine with low starting wind speed and low running vibration. When the anemometer speed does not change rapidly, such as when the bearing belt is faulty, the eddy current cannot be accurately measured. The turbine control system adjusts the blade spacing and rotor speed separately according to the degree of turbulence in order to protect the blades and drive mechanism from fatigue damage caused by improper use of rotating blades.
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.
Solar inverter is a main device and important part of PV on grid power system. In order to ensure the normal operation of the solar PV grid tie system, the correct configuration and selection of solar inverters are particularly important. For the configuration of the solar inverter, in addition to considering the technical specifications of the entire photovoltaic power generation system and referring to the product manual, the following technical features should also be considered: rated output power, output voltage adjustability, overall efficiency and start-up performance.
Solar inverter is an electronic product and its service life is limited due to the limit of the components. However, many inverters are damaged before the service life expires and the actual service life is shorter than the designed theoretical service life. The service life is determined by the product quality and the post-period installation, operation and maintenance conditions. So, how to improve the service life of the solar inverter?
Solar inverter shall realize the highest efficiency in wide power range conditions. Meanwhile, using a solar inverter shall meet the strict safety requirements. The property of the solar inverter is essentially determined by the accurate measurement of basic electricity. The safety criteria that shall be followed by solar inverter designers may become stricter and stricter. For instance, just like the limit on the input of DC power into the grid, some consensus may be reached on the allowable total harmonic wave of the solar inverter output current. By far, many different local limitations are put forward based on the layout situation. Thus, it requires that when the power grid frequency is greatly higher than 50Hz or 60Hz, the current shall be measured accurately.