Solar Inverter - Solar Panel Distributor In India

The Solar inverter is an important component in most solar photovoltaic systems. They serve multiple purposes including converting the DC power coming from solar Photovoltaic modules into usable AC power compatible with the local grid.

Nowadays Solar inverters (Sometimes also called as Solar PCU) have more features aside from one DC to AC conversion. These include maximum point tracking, battery charging, synchronization, anti-islanding protection, etc

Broad categories of solar inverters

Solar Inverters are often classified under following broad categories

Simple solar DC to AC inverters.

These are the foremost basic sorts of solar inverters and basically serve the aim of converting the DC from from the solar modules into AC power. Typically they're available in power ratings from as small as 50VA going upto 10000 VA.

The battery link voltage varies supported the capacity of the solar inverter. Typically smaller capacities upto 1000va are having a 12vdc nominal input voltage. Beyond 1000va the opposite common nominal voltages are 24v, 48v, 96v, 120v, 180v, 240v, 360v. in fact there could also be cases where other voltages are used.

They are available in 2 variants, i.e. pure sinewave and quasi (modified) sinewave. they typically also require a further solar controller (solar charger) so on regulate and control the incoming power from the solar panels to the battery and inverter.

However, now they're practically on their answer of the market thanks to the concept of getting solar inverters with integrated features.

Solar Battery based inverters / Solar PCU

These are the kinds of inverters utilized in solar systems where A battery is getting used to store the solar energy . It basically isn't only an inverter but also includes the solar controller and charger .

These are usually utilized in following situations :- Off-grid power systems, Remote power systems, Home based systems, locations with frequent power cuts, uninterrupted power requirement locations.Solar Panel Distributor In India

Such inverters may either have PWM based solar controllers or MPPT based solar controllers. However, nowadays more and more people are choosing MPPT based models thanks to the extra energy benefits of MPPT technology.

They may have a modified sinewave output or a real sinewave output.

These inverters may further even have an in-built AC grid charger so on cover sites where the grid power is out there but has interruptions. Such inverters also are called as Hybrid inverters Typically these models are available in single phase for power ratings ranging from 500va onwards going upto 10000va. For higher power ratings like 10kva onwards, they're usually available in 3 phase. Models are even available upto power rating of 100KW. However for special projects requiring a better power rating it's going to be feasible to possess higher power rating models also.

The Battery DC nominal link voltage varies consistent with the facility rating. because the power rating goes higher the DC bus nominal voltage ranges from 12vdc onwards going upto 360vdc.

Solar on-grid inverters

These also are referred to as grid-tie inverters. they're basically solar inverters which have a solar controller (usually MPPT nowadays) plus a conversion section then a synchronizing and control section to manage and manage the AC Output power being generated this is often now the foremost widely used category of solar inverters. actually most of the solar systems installed today are using such sorts of inverters.

These solar inverters are the foremost popular ones used for net metering or bi-directional metering or gross metering systems.

These inverters don't have any storage capabilities and hence aren't capable to possess any quite battery bank to be connected to them.

They are available in various power ratings typically ranging from 1 KVA and going upto as high as 2000 KVA during a single unit.

Further most string inverters accompany an anti-islanding feature. this is often kept as a security feature so on trip the inverter just in case the grid supply isn't available. (because it's generally assumed that if the grid supply isn't available, then there could also be some maintenance work happening and hence it might be potentially harmful if the system continues to get power in such a scenario) Solar Panel Distributor In India.

Most common solar grid tie inverters use highly reliable IGBT technology. They involve high frequency switching to first convert the input DC voltage to a standard DC bus voltage then converting it to AC output.

Nowadays solar on grid inverters are available with DC to AC conversion efficiencies of upto 98.5% and MPP tracking efficiencies exceeding 99%.

These inverters are further classified into 2 categories.

Solar multi mode inverters

There are variety of situations where one may require the features of on-grid and battery based inverters during a single unit. Such inverters are called as multi-mode inverters due to their capability to work in several modes counting on the client preference or counting on certain preset conditions. They incorporate facility to cater to the hundreds then supported grid availability, solar energy input, battery condition manage the entire system automatically.

They are also well adapt to cater to the various scenarios like Grid power failure , excess solar energy , battery charge and discharge, etc.

Hence an equivalent inverter can serve multiple purposes and scenarios. the sweetness is that for sites where there's a seasonal power cut scenario, then such solar inverters serve a perfect purpose.

For example taking the case of an office eager to install a system . they need a typical scenario that in summer months they face frequent power cuts and grid outages. But during other months they don’t have any power cuts. Hence during a traditional scenario they might be forced to settle on either the battery based inverter model or grid tie solar inverter. then they might be during a difficult situation of not having the proper solution

Usually they're available in ratings of 3kva / 5kva in single phase. And for higher power ratings like 10kva onwards, they're available in 3 phase Monocrystalline Solar Panel Manufacturers In India

Solar pumping inverters.

These are specifically meant for running AC asynchronous motors and pumps. they're primarily designed to directly run the pumps from solar panels without the necessity for any additional battery storage or other special features in grid tie inverters like anti-islanding / grid code compliance / etc Most solar pumping inverters today use MPPT technology.

The output they supply may be a variable V-I-F (Voltage – Current – Frequency) output. Hence the output from these solar inverters varies consistent with the input from the solar battery . Thus the AC motor runs at different frequency / voltage supported the input available.

Usually solar pumping inverters are available in 2 variants.

The first is suitable for pumps with ratings upto 3hp / 4hp. Here the AC output is usually having a nominal voltage of 220v, 3phase. Most models within the market have a DC input voltage range of typically 150 to 400vdc.

The second category consists of solar inverters suitable for pumps of rating 5HP and better . this might go upto whilst high as 100HP. Here the nominal AC output voltage is 380 / 400 / 415V, 3 phase. Most models within the market have a DC input voltage range of typically 400 to 800vdc.

However, one among the restrictions here is that these inverters are ideally suited to three phase motors only and may not be used with single phase input motors.

Conclusion

The choice of solar inverter is predicated on the type of system being installed. With the big variety of solar inverters available it's now possible to style and install a system to match the precise site requirements well.

There can also be situations where at one location 2 sorts of solar inverters are wont to cover different requirements.

It is important in touch in mind that choosing the proper solar inverter model and also the proper vendor / manufacturer is crucial to the reliability, performance and longevity of the system .

Be careful to settle on solar inverter having better DC to AC efficiency and also having necessary protections.

Further ideally you ought to select a vendor who features a proven diary and can be ready to provide you the required service, support and spares just in case of any problems.