Admittance control for anti-islanding protection in modular grid-connected inverters

Philip T Krein; Trishan Esram

doi:10.1109/COMPEL.2010.5562390

Admittance control for anti-islanding protection in modular grid-connected inverters

Philip T Krein, Trishan Esram

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A major requirement for grid-connected power converters imposed by codes and standards is "anti-islanding" protection. When the grid connection is lost or otherwise stops functioning, the photovoltaic power converter is required to shut off to avoid "backfeed" into the local distribution network. This paper describes a "reverse PFC" admittance control that controls the output current of an inverter in response to a detected grid voltage. It is shown that loss of grid will drive the inverter voltage to zero except in a unique special case. The special case can still be detected if the admittance includes a slow phase variation.

Original language	English (US)
Title of host publication	2010 IEEE 12th Workshop on Control and Modeling for Power Electronics, COMPEL 2010
DOIs	https://doi.org/10.1109/COMPEL.2010.5562390
State	Published - Oct 22 2010
Event	2010 IEEE 12th Workshop on Control and Modeling for Power Electronics, COMPEL 2010 - Boulder, CO, United States Duration: Jun 28 2010 → Jun 30 2010

Publication series

Name	2010 IEEE 12th Workshop on Control and Modeling for Power Electronics, COMPEL 2010

Other

Other	2010 IEEE 12th Workshop on Control and Modeling for Power Electronics, COMPEL 2010
Country/Territory	United States
City	Boulder, CO
Period	6/28/10 → 6/30/10

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering

Online availability

10.1109/COMPEL.2010.5562390

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Admittance control for anti-islanding protection in modular grid-connected inverters. / Krein, Philip T; Esram, Trishan.
2010 IEEE 12th Workshop on Control and Modeling for Power Electronics, COMPEL 2010. 2010. 5562390 (2010 IEEE 12th Workshop on Control and Modeling for Power Electronics, COMPEL 2010).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Krein, PT & Esram, T 2010, Admittance control for anti-islanding protection in modular grid-connected inverters. in 2010 IEEE 12th Workshop on Control and Modeling for Power Electronics, COMPEL 2010., 5562390, 2010 IEEE 12th Workshop on Control and Modeling for Power Electronics, COMPEL 2010, 2010 IEEE 12th Workshop on Control and Modeling for Power Electronics, COMPEL 2010, Boulder, CO, United States, 6/28/10. https://doi.org/10.1109/COMPEL.2010.5562390

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AB - A major requirement for grid-connected power converters imposed by codes and standards is "anti-islanding" protection. When the grid connection is lost or otherwise stops functioning, the photovoltaic power converter is required to shut off to avoid "backfeed" into the local distribution network. This paper describes a "reverse PFC" admittance control that controls the output current of an inverter in response to a detected grid voltage. It is shown that loss of grid will drive the inverter voltage to zero except in a unique special case. The special case can still be detected if the admittance includes a slow phase variation.

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Admittance control for anti-islanding protection in modular grid-connected inverters

Abstract

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