Ampt has introduced a new string optimiser, a DC power converter with multiple maximum power point tracking (MPPT) and output voltage and current limits to optimize system design and maximise performance of large-scale PV systems. Ampt is showcasing the product at several partner booths during Intersolar North America, including Shoals and Bonfiglioli.

Problem

In an effort to lower the cost of electrical components, large-scale PV developers and EPCs are looking to next generation system designs. A string optimiser, allows developers to deploy PV power plants with the cost saving benefits of a 2000 volt system using only 1000 volt components while meeting all 1000 volt code requirements.

Solution

Ampt String Optimizers are deployed in large-scale PV systems to lower cost and increase performance. This optimised system has twice the number of modules per string and higher resolution MPP tracking than conventional systems without Ampt. More modules per string decreases the number of combiners by 50% and reduces the amount of cabling which results in significant electrical balance of system savings. Putting MPPT on each string increases lifetime system production. Systems optimised with Ampt use inverters configured to operate in ‘Ampt Mode’. These inverters have a higher rated output power and operating efficiency compared to the same inverter operating in standard mode. Delivering more power per inverter reduces the overall cost per watt.

Applications

PV power plants.

Platform

Systems optimised with Ampt use inverters configured to operate in Ampt Mode. These inverters have a higher rated output power compared to the same inverter operating in standard mode. Delivering more power per inverter reduces the overall cost per watt. Compatible with any inverter the system has a high (99.1%/99.0% CEC/Euro) efficiency.

Availability

July 2014 onwards. 

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