Large-scale photovoltaic power plants, not apparent mistakes or production problems, even in a very small range of also easily bring serious financial problems for the power plant owners. Accurate and comprehensive monitoring of power station became an important part of day-to-day operations to reduce costs and improve production.
With the high-speed fieldbus Ethernet connection, with the use of dual-core microprocessor, SMA's cluster controller is said to provide a stable for up to 75 string inverter monitoring function. 100 Mbit / s bus system for power plant operators to provide quality power plant monitoring data transmission speed and detection value, status updates and power plant control the rapid processing of the command. According to the company, the sensor between the different connection options allows power plant operators to more accurately conventional power plant power detector. In addition to status updates, the conventional power plant power can also be on the SMA Sunny Portal portal Richard.
A flexible, modular system solution can be any number of cluster controller and high-speed fieldbus assembled together at the same time, the use of PV power plant management system of the power plant controller offers the possibility for the flexibility to change the photovoltaic power plant output power. With the convenience of the system can be added to the cluster, the modular system can be extended as needed.
Century New Energy Network (Reporter Zhang Song) reported: Motech (6244) announced, solar power system, DC TO AC PVMate 2900U ~ 7500U series, prevents the module from the ground potential difference is generated in order to enhance efficiency in the power generation of the solar system and extended module life.
PID (Potential induced degradation) effect is when the solar module ground to form long-term high-intensity voltage the aforementioned potential difference in addition to damage to the solar cells or modules, but also easily lead generation performance degradation, which led to the entire power generation system The output power decrease. Some solar module industry in 2012 launched PID-free products, the price is relatively higher general module. In accordance with the relevant system operators pointed out that in recent years, part of the power inverter with charger power plant performance significantly recession, part of the Department of PID effect.
Motech solar inverter PVMate 2900U ~ 7500U Series with positive grounding or negative grounding function, different grounding options. With Motech solar inverter, customers can choose a general module, can also achieve PID-free effect.
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