Renewable Energy

February 2012

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Figure 1: Typical solar power system diagram

Neal Schultz, Senior Applications Engineer, TE Circuit Protection

Increasing demand for clean electrical power has led to a focus on renewable energy sources such as solar power. Solar power systems are independent power generation systems meant to power

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Date:

02/02/2012

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Renewable Energy Parking

Doris Hirsch, Evonik Industries

A new solar carport transforms the parking space into a provider of green power that should delight designers and owners of electric cars alike. Fitted with innovative lightweight solar

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Date:

02/02/2012

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Figure1: The test circuit used for all turn-off measurements Lcomm= 3.2 μH?Configuration 1: Cclamp = 10 μF, Rclamp = 0.625 ?, L? = 330 nH?Configuration 2: Cclamp = 20 μF, Rclamp = 0.37 ?, L? = 325 nH

Optimized Design for High-Temp Operation

Martin Arnold, Tobias Wikström, Thomas Stiasny, Munaf Rahimo and Thomas Clausen, ABB Switzerland Ltd Semiconductors

A 4.5 kV IGCT (Integrated Gate Commutated Thyristor) with extraordinary high Safe Operating Area (SOA) at 140°C is presented. The improvements for the IGCT were achieved by optimizing the corrugated

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Date:

02/02/2012

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National Wind Energy Centre

Monitoring the Energy

Raymond Boyle, Principal Consultant, Wind Energy, NEL

NEL is a world-class provider of technical consultancy, research, testing, flow measurement and programme management services to the energy, oil & gas manufacturing industries and government. The

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Date:

02/01/2012

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At least two power reactors are needed for solar inverters: one in the boost converter (step-up chopper) and one at the ouput of the inverter for EMC filtering. Besides the IGBTs, the losses in the reactors are a major determining factor of the overall efficiency of the inverter

Inverter Efficiency

Reported by Cliff Keys, Editorial Director & Editor-in-Chief, Power Systems Design

Low-loss and high saturation flux density core materials in reactors and transformers are a key determining factor for the efficiency of inverters. The new TDK PE90 ferrite is a cutting-edge

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Date:

02/01/2012

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Figure 1: Typical off-grid PV system

Solar Battery Charger

Michele Sclocchi National Semiconductor by Texas Instruments, Martin Williams, Bitron Industrie

Photovoltaic cell technology over the last few years has reached levels of cost and efficiency that enable its use in new markets. Due to the varying sunlight conditions, energy storage

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Date:

02/01/2012