off-grid inverter prices or quality

Solarvertech takes you to know one of the photovoltaic off-grid inverters – Analysis of output voltage

The solar off-grid inverter industry is becoming more and more fierce and the profits are getting lower and lower. Many manufacturers are trying to cut corners in order to reduce costs. Many unsuspecting customers often jump into some unscrupulousness without knowing it. The merchants dug the pits, but they didn’t know that they felt that they had bought a price-performance “super high” device in front of them, and all kinds of distress would follow. The following Solarvertech New Energy introduces the output voltage in the main technical specifications of the off-grid inverter:

off-grid inverter prices or quality

1. Rated output voltage: The inverter should maintain the rated voltage value of the output within the allowable fluctuation range of the specified DC input voltage. The stability accuracy of the output rated voltage value should be as follows:

A. During steady state operation, the voltage fluctuation should not exceed ±3% or ±5% of the rated value.
B. Under the influence of sudden load (0%, 50%, 100% of rated load) or other disturbance factors, the output voltage deviation should not exceed ±8% or ±10% of the rated value.
C. The inverter should have sufficient rated output capacity and overload capacity to meet the electrical power requirements of the equipment under the maximum load. When the load of the inverter is not purely resistive, that is, when the output power factor is less than 1, the load capacity of the inverter will be less than the rated output capacity value given.
D. In the off-grid solar photovoltaic power generation system, the storage battery is used as the energy storage device. When the battery with the nominal voltage of 12V is in the floating state, the battery terminal voltage can reach 13.5V, and the short-time overcharge state can reach 15V. When the battery is terminated with load, the voltage can be reduced to 10.5V or lower, and the voltage of the battery terminal can reach about 30% of the nominal voltage. The inverters produced by Solarvertech New Energy have better voltage regulation performance and can ensure that the solar photovoltaic system provides a stable AC voltage for the AC load.

2. the output voltage stability of the inverter represents the voltage regulation capability of the inverter output voltage. Most inverter products give the percentage deviation of the inverter output voltage within the allowable fluctuation range of the input DC voltage. For voltage regulation. A high-performance inverter should also give the percentage deviation of the output voltage of the inverter when the load has a 0%-100% change, which is usually called the load regulation. The sine wave inverters (NP, NK, FS series) produced by Solarvertech have a voltage regulation rate ≤ ± 3% and a load regulation rate ≤ ± 6%.

3.the output voltage waveform distortion. When the output voltage of the inverter is sinusoidal, the maximum allowable waveform distortion (harmonic content) should be specified, usually not exceeding 5%, and the harmonic content of the inverter produced by Solarvertech New Energy does not exceed 3%.

The above information comes from Jiaxing solarway New Energy Co., Ltd., German technology, made in China, and Solarvertech focuses on the development and production of off-grid solar equipment. Please indicate the source, thank you.

off-grid inverter prices or quality

Is it important to purchase off-grid inverter prices or quality?

In our sales process, customers often don’t know the function and quality of the inverter, so they can only pay more attention to the price.The price of this product I bought is high, I am afraid that I will lose money, if I buy it cheaply, the quality will has an impact. As long as you have certain professional knowledge, you can find the most cost-effective one. The following Solarvertch New Energy analyzes the price difference of the off-grid inverter.

off-grid inverter prices or quality

1. Solar off-grid inverters are often used in different scenarios such as home solar power systems, RVs, yachts, special vehicles, etc. The types of inverters required are also different, and the prices will vary. Inverters are mainly divided into the following two types:

A. Modified sine wave inverter: The AC voltage waveform output by this type of inverter is square wave, the circuit is relatively simple, and the number of power switches used is small. The advantage is that the circuit is simple, the price is cheap, and the maintenance is convenient; the disadvantage is that since the square wave voltage of the output contains a large number of high-order harmonics, additional losses will be generated in the load electric appliance with the iron core inductor or the transformer, for the audio and communication equipment. There is interference.

B. Pure sine wave inverter: The AC voltage waveform output by the sine wave inverter is a sine wave. The advantage of Solarvertch’s sine wave inverter is that the output waveform is good, the distortion rate is very low THD<3%, completely isolated design, safety factor, low interference to audio and communication equipment, low noise. In addition, the protection function is complete, the adaptability to inductive and capacitive loads is strong, and the whole machine is highly efficient.

2, solar off-grid inverter due to the use of a larger range, the protection function is complete, the price is different. The sine wave inverter produced by Solarvertch has low voltage alarm, over temperature protection, input low voltage protection, output high voltage protection, overload protection, short circuit protection, reverse connection protection, ground fault protection, soft start function, use of inverter There is enough protection.

3. Whether it has USB function and the size of USB output current, such as 5V500MA, 5V2.1A.

4. Is the power sufficient? The inverter produced by Solarvertch is 100% full power.

Therefore, customers should choose the solar off-grid inverter suitable for their own needs according to their actual needs. The solar off-grid inverter industry is becoming more and more fierce and the profits are getting lower and lower. Many manufacturers are willing to cope with the cost. Along with a means of cutting corners, many unsuspecting customers often jump into the pits of some unscrupulous merchants without knowing it. They don’t know, they feel that they have bought a price-effective “super high” device. Distress will follow.

The above information comes from Jiaxing Solarwill New Energy Co., Ltd., German technology, made in China, and Solarvertch focuses on the development and production of off-grid solar equipment. Please indicate the source, thank you.

MPPT charge controller

Solarvertech takes you into the world of solar off-grid power generation systems – Controller

The solar off-grid power generation system consists of a solar photovoltaic array, a solar charge controller, a battery and an inverter. The controller is a key component in the system. With the development of society, the application of new solar energy is more and more extensive, and there are more and more solar charging controllers. Various solar controllers with different functions and types are also diverse. Solarvertech New Energy takes you through the MPPT controller.

mppt charger controller

1.Innovative maximum tracking efficiency point tracking technology, the department significantly improves the energy efficiency of the solar energy system, and the maximum tracking efficiency can reach 99.7%.

2.Energy conversion efficiency is high, up to 97%;

3.Support all types of solar panels, such as monocrystalline silicon, polycrystalline silicon, amorphous silicon, etc.;

4.rich load working mode: sealed, colloidal, open lead-acid battery charging program is optional;

5.all-round protection functions, including PV reverse connection protection, PV over-current protection, battery reverse connection protection, battery over-voltage protection, battery under-voltage protection, load over-current protection, load short-circuit protection, etc.

6.support for serial communication functions.

7.using temperature compensation, automatically adjust the charge and discharge parameters to protect the normal use of the battery;

8.support a variety of voltage models of batteries, such as 12V, 24V, 36V, 48V and so on.

The above information comes from Jiaxing Solarway New Energy Co., Ltd., German technology, made in China, and Solarvertech focuses on the development and production of off-grid solar equipment. Please indicate the source, thank you.

Solarvertech

Solarvertech takes you into the world of solar off-grid power generation systems – Inverter

The solar off-grid power generation system consists of a solar photovoltaic array, a solar charge controller, a battery and an inverter, and the inverter is a key component in the system. Solar off-grid power generation system also has special requirements for inverters. As a professional off-grid solar equipment manufacturer, Solarvertech New Energy has the following main inverters:

Solarvertech

First, it has a wide DC input voltage adaptation range. Since the terminal voltage of the solar photovoltaic array varies with the load and the intensity of the sunlight, the battery has a clamping effect on the voltage of the solar cell, but the voltage of the battery varies with the remaining capacity of the battery. The internal resistance changes and fluctuates, especially when the battery ages, the terminal voltage varies widely. For example, for a 12V battery, the terminal voltage can vary between 10-16V. The inverter produced by Solarvertech New Energy can be It operates normally over a wide DC input voltage range and ensures that the AC output voltage is stable within the voltage range required by the load.

Second, in order to maximize the use of solar cells and improve system efficiency, the inverters developed and produced by Solarvertech New Energy have reduced the intermediate link of power conversion in the design process to reduce losses and improve overall efficiency. The overall efficiency of inverters produced by Solarvertech New Energy can reach 85%-92%.

Third, with high reliability, the current solar off-grid power generation system is mainly used in remote areas, and many solar off-grid power generation systems are unattended and maintained. The inverter developed by Solarvertech New Energy has reasonable circuit structure, strict component screening, and has seven protection functions of low voltage, high voltage, over current and short circuit, overload, over temperature, reverse connection and ground fault. See Solarvertech to take you through the analysis of the three protection functions of the PV off-grid inverter).

Fourth, the output voltage of the inverter can be adjusted according to the standards of each country, and the frequency is adjusted, which is applicable to most common electrical loads in various countries.

Fifth, In the solar off-grid power generation system above 1500W, the output of the inverter should be a sine wave with a small harmonic content. This is because in the solar off-grid power generation system, if square wave power is used, the output will contain more harmonic content, and higher harmonics will generate additional losses, which will reduce the efficiency of the whole system. For Solarvertech’s new energy inverters, the high-quality output waveform has two requirements: A. High steady-state accuracy, including THD<3%. The fundamental component is relative to the reference waveform in phase and amplitude. Static difference; B, good dynamic performance, fast adjustment under external disturbance, small change of output waveform.

Sixth, with good overload capacity, generally can carry 100%-110% of the rated power, when the overload exceeds the rated power 110%-130%, the product will be overload protection. Impacting any load will not cause a burn-in phenomenon. The inverter guarantees a standard rated sinusoidal output under any load conditions (except for overload conditions) and transient conditions.

With the rapid development of the photovoltaic industry, inverters, with the support of modern technology and new devices, will have a wide market and development prospects in terms of reliability and cost performance, as well as energy efficiency.

The above information comes from Jiaxing Solarway New Energy Co., Ltd., German technology, made in China, and Solarvertech focuses on the development and production of off-grid solar equipment. Please indicate the source, thank you.