Concept

Islanding

Related publications (40)

Synchronized phasors monitoring during the islanding maneuver of an active distribution network

The paper describes a phasor measurement unit (PMU) prototype based on a synchrophasor estimation technique specifically conceived for active distribution networks and the experimental results obtained by its application during intentional islanding and re ...

IEEE2010

Decentralized Control of Parallel Connection of Two Distributed Generation Units

Behrooz Bahrani

This paper presents a decentralized control strategy for the autonomous (islanded) operation of parallel connection of two distributed generation (DG) units. The DG units are electronically interfaced to the host grid at the same point of common coupling ( ...

2009

Harmonic losses of multi-phase PWM inverter-fed drives

Drazen Dujic

Multi-phase variable speed drives, supplied from two-level voltage source inverters (VSIs), are currently considered for a number of industrial applications. While various multi-phase PWM schemes had been developed, no detailed analysis of the impact of th ...

IEEE2009

Turbine Speed Governor Parameters Validation in Islanded Production

François Avellan, Jean-Jacques Simond, Christophe Nicolet, Philippe Allenbach, Basile Kawkabani, Bob Greiveldinger

The transient behavior of hydroelectric power plants is of high interest for ensuring stability of islanded electrical power networks. Therefore, it is suitable to determine and validate the set of parameters of a turbine speed governor using a realistic s ...

2007

Continuous Carrier-Based vs. Space Vector PWM for Five-Phase VSI

Drazen Dujic

Multi-phase machines are nowadays considered for various applications due to the benefits that they offer when compared to their three-phase counterparts. Multiphase voltage source inverters (VSI) are dominantly used in the power conversion stage for their ...

IEEE2007

Space Vector PWM for Nine-Phase VSI with Sinusoidal Output Voltage Generation: Analysis and Implementation

Drazen Dujic

Multi-phase machines are nowadays considered for various applications due to the advantages that they offer when compared to their three-phase counterparts. Established three-phase drive control principles can be easily extended to multi-phase drives. Howe ...

IEEE2007

On the Hydroelectric Stability of an Islanded Power Network

François Avellan, Jean-Jacques Simond, Christophe Nicolet, Philippe Allenbach, Bob Greiveldinger

Islanded power networks comprising a small number of large power plants are subject to perturbations leading to important transients, and, hence need high performance governors. The design of these governors requires a detailed model of the system. This is ...

2006

On the Hydroelectric Stability of an Islanded Power Network.

François Avellan, Jean-Jacques Simond, Philippe Allenbach

slanded power networks comprising a small number of large power plants are subject to perturbations leading to important transients, and, hence need high performance governors. The design of these governors requires a detailed model of the system. This is ...

2006

Photovoltage study of charge injection from dye molecules into transparent hole and electron conductors

Ulf Anders Hagfeldt

Transient and spectral photovoltage (PV) have been investigated for charge injection from a dye [Ru(dcbpyH2)2(NCS)2] into transparent hole (CuSCN, CuI, CuAlO2) and electron ( TiO2, SnO2:F) conductors. The PV signal rises to a max. within 10 ns to 10 μs, de ...

2004

Photoelectrochemical studies of colloidal titania-films: the charge separation process studied by means of action spectra in the UV region

Ulf Anders Hagfeldt

Charge sepn. in sintered colloidal TiO2 film electrodes was studied by action spectra in SCN-/(SCN)2- the UV region. Electrodes with different film thicknesses were studied. Current generation is most efficient close to the back contact. Monochromatic quan ...

1992

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