An anti-islanding method for voltage controlled VSI
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Document typeConference lecture
Defense date2015
Rights accessRestricted access - publisher's policy
Abstract
Islanding detection methods have been widely applied and thought for current-controlled voltage source
inverters, as in case of photovoltaic inverters. However, some considerations have to be taken into account
when anti-islanding detection strategies are applied on voltage controlled-voltage source inverters,
for example in case of using AC droop control. This paper shows different issues when anti-islanding algorithms
based on the voltage and frequency displacements are used in voltage-controlled inverters. The
impedance measurement of the point of common coupling is presented as a mechanism to achieve the islanding
detection. An anti-islanding method for voltage-controlled voltage source inverters is proposed,
and the suitable frequencies to be used are analysed. The concept of frequency detection band is defined
allowing the impedance measurement to improve its behaviour towards resonant and non-resonant loads.
CitationLlonch, M., Heredero-Peris, D., Montesinos-Miracle, D. An anti-islanding method for voltage controlled VSI. A: European Conference on Power Electronics and Applications. "17th European Conference on Power Electronics and Applications". Ginebra: 2015, p. 1-10.
ISBN9789075815238
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