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Power Electronics

Master-slave technique for deploying parallel inverters in PV systems

Scientists in Czechia have proposed to use parallel inverters in PV systems to not only reduce instability, but also to increase power yield. The proposed approach reportedly results in higher maximum power point tracking (MPPT) performance.

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Enphase unveils new three-phase inverters

Enphase has released 208 V three-phase inverters for the small commercial market. The advancing hardware comes with a specialized support team and tailored design tools.

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SMA to build 3.5 GW inverter factory in US

SMA Solar Technology AG says it will open a new 3.5 GW inverter factory at an unspecified location in the United States in 2025. The German manufacturer is currently talking with several US states and potential partners to select the best production site.

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PI Berlin releases new tool to detect faults in inverters

PI Berlin has developed a new tool to detect problems in inverters such as defective printed circuit boards, faulty switching algorithms, and deficiencies in components and sensors.

New multilevel PV inverter concept based on switched capacitors, single DC input

Scientists in India have developed a 500 W seven-level inverter prototype based on switched capacitors. The device is reportedly able to achieve a high efficiency despite switching, conduction, and capacitor voltage ripple losses.

New wall-mount lithium battery inverters from India

Exide, an Indian manufacturer, has entered the lithium-ion home power backup market with wall-mount lithium battery inverters ranging in size from 450 W to 720 W.

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Enphase introduces commercial-scale microinverter

Enphase’s new IQ8-3P solar microinverter offers peak power output of up to 480 W.

Fenice Energy unveils microinverters for high-power solar panels

Fenice Energy, formerly SunEdison, has developed single-phase and three-phase microinverters for residential and commercial solar installations. The microinverters support up to 670 Wp+ PV modules, with a maximum input current of 20 A.

Overview of grid codes identifies CEI 0–21 standard as potential international benchmark

Conducted by Italian scienitists, the analysis includes standards such as IEC 61727, the US EREC G83/2 Recommendations, Germany’s VDE-AR-N 4105, China’s GB/T 19964-2012 and GB/T 20,046, Italy’s CEI 0-21, Australia’s AS 4777.2, and New Zealand’s AS 4777.2 standards, as well as the United States’ IEEE 1547. 

Quiet shift from central to string inverters in utility-scale solar

Central inverters still dominate the US utility-solar market but string inverters are beginning to get more traction in projects above 10 MW in size.

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