Les meilleures marques de convertisseurs solaires : Guide complet pour choisir le meilleur onduleur solaire

Are you concerned about buying a high-quality solar inverter and want to find good solar inverter brands?

Don’t worry, today in this article we will introduce different but good solar inverter brands to you. Just keep scrolling and you can learn a lot about the solar inverter.

Types de convertisseurs solaires

There are many different solar inverters available for solar and energy storage systems. We have listed here the four most common types used for rooftop solar.

Onduleurs solaires à cordes

This review focuses on common “string” solar inverters, which are the most common type of solar inverter. These inverters are connected to solar panels that are connected in series. String inverters are the most common type of inverter used in the UK, Europe, Australia, & Asia, and are growing in popularity in the US, where micro inverters are very popular.

Onduleurs hybrides

Onduleurs hybrides sometimes referred to as battery-ready inverters, are similar to string solar inverters but enable the direct connection of a battery storage system to allow greater self-sufficiency using solar. More than a few hybrid inverters can also provide basic backup power in the event of a power outage, but they are not usually designed for continuous off-grid use. Although hybrid inverters are more expensive, as hybrid inverter technology evolves and batteries become cheaper and more attractive, hybrid inverters are becoming more cost competitive with solar inverters. For more information, see our detailed review of hybrid and off-grid inverters.

Onduleurs hors réseau

Off-grid or stand-alone power systems often require much more powerful battery inverters and built-in chargers that can be set up for AC or DC coupled solar systems. Modern flexible off-grid inverter chargers (also known as multi-mode inverters) can also be used to create advanced hybrid grid-tied systems. See the best off-grid solar systems review for more information.

Small-scale and DIY off-grid systems use simple MPPT solar charge controllers, also known as solar regulators. These are not inverters but DC solar battery chargers connected between the solar panel/s and battery to regulate the battery charging process and ensure the battery is charged correctly, or more importantly, not over-charged.

Micro-onduleurs

Micro inverters, also called micros, which are small solar inverters that connect straight to a single solar panel. Due to the fact that each micro inverter and solar panel operates independently, micro inverters are a good choice for complex roof layouts and shaded locations. Micro inverters have several advantages over string solar inverters and are therefore becoming increasingly popular worldwide.

Solar Inverter Function

The solar inverter can be the most complex portion of any grid-tied solar system. Unfortunately, it is also the most problematic part. It’s not surprising, since solar inverters are often install outside in harsh weather conditions, including rain, humidity, and heat, while also generating kilowatts of electricity for up to 10 hours a day. This is why it is important to use high-quality inverters and to install them as far away from the wind as possible.

Why Is It Important To Select The Right Inverter?

Solar inverters should be properly selected to avoid personal injury as well as mechanical and maintenance issues. Importantly, because an inverter is an electronic device, most OEM-installed electronic devices are designed, validated, and tested to SAE standards.

Inverters should be tested and certified to UL or CSA electrical code standards. The initial cost of an unapproved solar inverter may be low, but it can increase maintenance costs by reducing battery life, damaging AC equipment, and requiring additional maintenance. Poor quality inverters or improperly installed inverters can create safety hazards, including potential fires.

Les bonnes marques d'onduleurs

Fronius

Fronius manufactured its first solar inverter in 1994 and has since become one of the top solar inverter manufacturers across the globe. The Fronius solar inverter is different from other inverters due to the fact that it relies on a fan-based cooling system as opposed to the heat sink technology, which is common with other solar inverters. Fronius manufactures almost everything solar-related including solar panels and other PV system components.

Fronius solar inverters come with a 5-year warranty period and they also offer an extended warranty for solar inverter components. However, the Fronius solar inverter is bigger in size when compared to other solar inverters. Due to its fan-based cooling system, the Fronius solar inverter is quite noisy when starting and during shutdowns, which makes it unsuitable for residential premises.

Avant

Afore is one of the leading PV inverter manufacturers in China, with fourteen years of experience in R&D, manufacturing and sales of PV inverters. Since its establishment, Afore has always been committed to providing high-quality, high-performance PV inverters and system solutions for the global market.

Afore has a wide range of solar inverter series to cover a wide range of application scenarios from household, small commercial to large commercial and ground-mounted power plants. The products have a wide power range from 1-11kW single-phase to 3-110kW three-phase, meeting the needs of PV systems of different sizes. In addition, Afore also offers energy storage inverters and storage battery solutions which further enhance the flexibility and reliability of the system.

Afore solar inverters are designed with a balance of high performance and durability in mind. All models are manufactured with high quality materials to ensure long life and stability. Advanced heat dissipation technology and intelligent protection mechanisms, such as DC reverse protection, overcurrent voltage protection, and anti-islanding protection, are used inside the inverters to effectively guarantee the safe operation of the system. Meanwhile, Afore inverters are also equipped with touch buttons and various communication modules (e.g. GPRS, WiFi, wired Ethernet, etc.), which enable users to monitor the system status at anytime and anywhere and realize intelligent management.

Compared to other solar inverters on the market, Afore solar inverters excel in several ways. Firstly, Afore inverters adopt advanced MPPT (Maximum Power Point Tracking) technology, which is able to track the maximum power point of PV modules in real time and improve the system power generation efficiency. Secondly, Afore inverters are IP65 rated for stable operation in harsh environmental conditions. In addition, Afore also provides comprehensive after-sales service and technical support to ensure that users receive timely and effective help in the process of use.

It is worth noting that Afore solar inverters also excel in noise control. Unlike inverters that rely on fan cooling systems, Afore inverters utilize an advanced heat dissipation design that effectively reduces noise levels during operation, making them more suitable for installation in residential and other locations that require a quiet environment.

SolarEdge

For its intelligent solar inverters, SolarEdge is known for its products that are categorized into single-phase and three-phase solar inverters. The solar inverters from SolarEdge support everything from small rooftop installations to large, ultra-high-power installations. As a manufacturer of all solar products, SolarEdge produces everything from solar inverter modules to power optimizers and circuit breakers, and it in addition even has a monitoring platform that provides real-time performance monitoring.

They also have a StorEdge solution that stores unused PV energy to be used later on when there is insufficient solar energy. The Smart Energy solution enables home appliances to utilize solar energy to reduce electricity use, hence saving you money used to pay electricity bills.

SolaXPower

Solax Power is part of the Suntellite Group which is based in China and is a relatively new player in the solar inverters market. Solax manufactures solar panels, solar cells, and solar inverters. You can also get a wide range of solar components from the Solax brand. The Solax solar inverters are bigger in size compared to other brands of solar inverters but they are cost-friendly and still efficient and reliable, thus their slogan is ‘simple, reliable, efficient. The X-hybrid Solax solar inverter is one of the best solar inverters in the world, making the company one of the best solar inverter manufacturers in the world.

Fimer

Fimer started its first solar production in 2007 and has become the 4th largest solar inverter manufacturer in the world. Fimer inverters are branded as Fimer ABB Inverters and they plan on using this brand name for the next few years. Fimer’s residential solar inverter is highly efficient and the standards are up to 98%. Fimer inverters come with different warranty periods, for instance, the single-phase residential solar inverters come with a 10-year warranty while the three-phase residential ones come with a 5-year warranty. 

LG Electronics

LG is a South Korean Korean company that was founded in 1958 as a manufacturer of electronic appliances. After conducting rigorous research on solar, Lg produced its first solar panel in 2009. Shortly after introducing itself as a solar manufacturer, LG commenced the construction of its 14-megawatt solar farm in South Korea. Since then, Lg has become a mass producer of solar panels for your solar power system and it is one of the top solar inverter manufacturers globally. LG solar inverters are one of the most widely used across the world because of their attention to quality and their 25 years of warranty period. 

Questions à poser lors de la sélection d'un onduleur

Dimensionnement de l'onduleur

When selecting an inverter, it is very important to know which electrical devices will be powered by the inverter. Some hand tools, small refrigerators, electric blankets, and fans may work fine with a modified square wave inverter. More sensitive equipment requires a true sine wave inverter.

Step 1: Determine the wattage of the AC device or devices to be powered by the inverter. 1OA x 120V = 1200W

Step 2: Simply add together the combined wattages of the individual devices to be powered by the inverter. This is the total wattage required.

Step 3: Add 20 percent additional wattage for the margin. Determine if the AC device will require any surge power for a startup.

Exemples d'exigences en matière de puissance

• LED/LCD TV 100W • Electric Blanket – 150 watts

• Coffee Maker – 1250 watts during brewing – 200 Watts during warm cycle

• Satellite Receiver – 20 watts

• DVD/VCR- 50- 100 watts

• Iron- 1200 Watts

• 1/4-inch Drill – 300 Watts

• Electric Frying Pan – 1500 watts

• Microwave Oven – See note.

NOTE: Microwaves are typically rated by ”cooking power“ or output wattage. The actual wattage draw of the microwave will be substantially higher. A typical 600-watt microwave will draw up to 1100 watts.

Capacité de production continue

Continuous output capability is the amount of sustained power the inverter can produce and over what time period. It is important to size the inverter for the power output that the intended AC loads required on a continuous basis and for any necessary start-up surge requirement.

Puissance de surtension ou puissance de crête

Some loads require extra power to start (such as a motor or compressor). This surge requirement can be a multiple of the normal operating power. Select an inverter that will handle the increased startup load.

Duty Cycle

This pertains to how often the inverter is used: once daily, several times per day, only a few minutes at a time, continuous duty, etc. It is important to select an inverter where the duty cycle rating matches the user‘s requirements.

Efficacité

Les onduleurs qui fonctionnent avec un rendement élevé tireront moins de courant des batteries et fonctionneront plus froidement qu'un onduleur au rendement plus faible. Les taux d'efficacité des onduleurs sont généralement compris entre 75 et 90 %.

Low-Voltage Alarm And Shutdown

Certains onduleurs sont autorisés à fonctionner jusqu'à ce qu'ils déchargent complètement les batteries et ne laissent pas assez de puissance pour démarrer le camion. Choisissez un onduleur dont le point d'arrêt en cas de tension basse de la batterie est de 11,8 V CC ou plus.

Cooling Capacity

Choisissez un onduleur conçu avec des caractéristiques de refroidissement pour dissiper efficacement la chaleur. Un onduleur testé selon la norme UL 458 devrait répondre aux critères de sécurité.

Protection contre les sous-tensions et les surtensions

La plage de tension normale de fonctionnement SAE pour un système 12V DC est de 9V-16V. Choisissez un onduleur qui fonctionnera correctement et ne sera pas endommagé si la tension d'entrée varie au-delà de la plage de tension de fonctionnement normale.

Parasitic Current Consumption

Lorsqu'un onduleur est sous tension mais qu'il n'y a pas de demande de charge CA, l'onduleur consomme toujours du courant. Même si l'onduleur est équipé d'un dispositif de déconnexion automatique en cas de basse tension, la consommation prolongée de courant peut réduire la capacité des batteries à faire démarrer le moteur.

Shore Power Compatibility

Si vous devez occasionnellement vous brancher sur le courant de quai, vous devez avoir un onduleur avec un commutateur de transfert, soit externe à l'onduleur, soit intégré dans le boîtier de l'onduleur. Lorsque le camion est branché sur le courant de quai, celui-ci alimente les prises de courant alternatif sans utiliser l'énergie de la batterie.

GFCI (Ground Fault Circuit Interrupt)

Protection L'utilisation d'un onduleur avec disjoncteur de fuite à la terre ou d'un système de distribution avec disjoncteur de fuite à la terre est recommandée et exigée par la norme UL458.

Onduleurs/chargeurs

Un onduleur/chargeur est un onduleur avec un chargeur de batterie intégré. Le chargeur de batterie charge les batteries lorsque l'onduleur est connecté à la prise de quai, à un générateur ou à toute autre source d'alimentation en courant alternatif.

Protection contre les vibrations

Un onduleur doit être conçu pour l'environnement de travail. Les connexions doivent être faites directement aux batteries (par l'intermédiaire d'un fusible). Les câbles et les connexions sont soumis à un flux de courant élevé, à des vibrations, à des chocs et à des cycles de température. Les connexions qui se desserrent avec le temps peuvent entraîner une surchauffe de la connexion et des dommages thermiques possibles, y compris un incendie.

Où doit-on placer un onduleur ?

De nombreux onduleurs solaires peuvent être installés en toute sécurité à l'extérieur, car presque tous les onduleurs solaires sont conformes aux normes de protection contre les intempéries. Toutefois, comme tout appareil électrique, les onduleurs solaires doivent être installés dans un endroit protégé ou à l'ombre afin d'éviter les conditions météorologiques extrêmes et les fortes variations de température, qui peuvent réduire les performances et la longévité de l'appareil. Il est possible de prolonger la durée de vie d'un onduleur solaire en l'installant dans un garage, sous un abri de voiture ou dans un endroit où le soleil ne brille pas. La chose la plus importante à retenir est qu'il faut toujours éviter de placer l'onduleur sous le soleil brûlant de l'après-midi. L'installation d'un pare-soleil contribuera à prolonger la durée de vie de l'onduleur s'il n'est pas possible d'éviter la lumière directe du soleil.

Les panneaux solaires peuvent également développer des problèmes ou subir une dégradation excessive au fil du temps, ce qui peut entraîner des performances médiocres. Cependant, contrairement à un onduleur défectueux, la dégradation des panneaux solaires n'entraîne généralement pas l'arrêt complet du système. Cela dit, nous recommandons de n'utiliser que des panneaux solaires de marques réputées, installés par un installateur fiable. Cela dit, nous recommandons de n'utiliser que des marques de panneaux solaires réputées et de faire appel à un installateur fiable. Dans cette optique, il vaut la peine de payer le coût supplémentaire pour une marque d'onduleur de qualité, une marque qui est en règle depuis plus de 5 ans et qui bénéficie d'une extension de garantie si elle est disponible.

Conclusion

Les onduleurs solaires sont particulièrement importants car ils sont le composant d'un système d'énergie solaire qui convertit le courant continu en électricité. Les onduleurs solaires ont généralement une durée de vie allant jusqu'à douze ans, et il est possible que vous n'ayez à remplacer votre onduleur qu'au moins une fois pendant toute la durée de vie de vos panneaux solaires.

Le choix d'une bonne marque d'onduleur est une tâche difficile mais très importante. C'est pourquoi il convient de bien réfléchir avant de décider d'acheter un onduleur solaire.