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Influence of Different Fault Ride-Through Strategies of Converter-Interfaced Distributed Generation on Short-Term Voltage Stability

Coumont, Martin ; Bennewitz, Florian ; Hanson, Jutta (2019)
Influence of Different Fault Ride-Through Strategies of Converter-Interfaced Distributed Generation on Short-Term Voltage Stability.
2019 IEEE PES Innovative Smart Grid Technologies Europe. Bukarest, Romania (29.09.-02.10.2019)
doi: 10.1109/ISGTEurope.2019.8905465
Conference or Workshop Item, Bibliographie

Abstract

Fault ride-through strategies of converter-interfaced distributed generation units are an important factor, that is to be considered, when evaluating system stability in future power systems with high share of distributed power generation. Two major groups of control strategies exist: control systems based on current injection as required by several European grid codes and voltage controlled inverter strategies. This paper investigates the influence of the fault ride-through strategy on short-term voltage stability following voltage sags in the distribution grid caused by a three phase short circuit in the overlaying transmission network. A control strategy with blocking current mode resulting in zero current output during fault ride-through is taken as reference. Voltage support by means of current injection is considered with two variations: reactive current injection and current injection in both axes based on the grid impedance angle. A hierarchical d/q-voltage control strategy is used as an example for voltage controlled inverter behavior. Comparative analysis using time domain simulations in a one load infinite bus system is performed and fundamental differences between the control strategies are described. Voltage stability is evaluated regarding the maximum possible fault duration, until induction motor stalling and subsequent local voltage collapse occurs. The comparison of the control strategies shows that d/q-voltage control is able to improve short-term voltage stability and is less dependent on the grid impedance and load composition than control based on current injection.

Item Type: Conference or Workshop Item
Erschienen: 2019
Creators: Coumont, Martin ; Bennewitz, Florian ; Hanson, Jutta
Type of entry: Bibliographie
Title: Influence of Different Fault Ride-Through Strategies of Converter-Interfaced Distributed Generation on Short-Term Voltage Stability
Language: English
Date: 21 November 2019
Publisher: IEEE
Book Title: 2019 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)
Event Title: 2019 IEEE PES Innovative Smart Grid Technologies Europe
Event Location: Bukarest, Romania
Event Dates: 29.09.-02.10.2019
DOI: 10.1109/ISGTEurope.2019.8905465
URL / URN: https://site.ieee.org/isgt-europe-2019/
Abstract:

Fault ride-through strategies of converter-interfaced distributed generation units are an important factor, that is to be considered, when evaluating system stability in future power systems with high share of distributed power generation. Two major groups of control strategies exist: control systems based on current injection as required by several European grid codes and voltage controlled inverter strategies. This paper investigates the influence of the fault ride-through strategy on short-term voltage stability following voltage sags in the distribution grid caused by a three phase short circuit in the overlaying transmission network. A control strategy with blocking current mode resulting in zero current output during fault ride-through is taken as reference. Voltage support by means of current injection is considered with two variations: reactive current injection and current injection in both axes based on the grid impedance angle. A hierarchical d/q-voltage control strategy is used as an example for voltage controlled inverter behavior. Comparative analysis using time domain simulations in a one load infinite bus system is performed and fundamental differences between the control strategies are described. Voltage stability is evaluated regarding the maximum possible fault duration, until induction motor stalling and subsequent local voltage collapse occurs. The comparison of the control strategies shows that d/q-voltage control is able to improve short-term voltage stability and is less dependent on the grid impedance and load composition than control based on current injection.

Divisions: 18 Department of Electrical Engineering and Information Technology
18 Department of Electrical Engineering and Information Technology > Institute for Electrical Power Systems > Electrical Power Supply with Integration of Renewable Energies
18 Department of Electrical Engineering and Information Technology > Institute for Electrical Power Systems
Zentrale Einrichtungen
Zentrale Einrichtungen > University IT-Service and Computing Centre (HRZ)
Zentrale Einrichtungen > University IT-Service and Computing Centre (HRZ) > Hochleistungsrechner
Date Deposited: 14 Oct 2019 06:22
Last Modified: 16 Aug 2023 11:16
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