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Field validation of generic wind park models using fault records 被引量:3
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作者 Aboutaleb HADDADI Ilhan KOCAR +3 位作者 Thomas KAUFFMANN Ulas KARAAGAC evangelos farantatos Jean MAHSEREDJIAN 《Journal of Modern Power Systems and Clean Energy》 SCIE EI CSCD 2019年第4期826-836,共11页
A challenge faced by protection and planning engineers is the development and validation of accurate wind turbine generator(WTG)models to study the impact of increasing wind integration on system protection.Thispaper ... A challenge faced by protection and planning engineers is the development and validation of accurate wind turbine generator(WTG)models to study the impact of increasing wind integration on system protection.Thispaper is on the experimental validation of a generic electromagnetic transient-type(EMT-type)model of aggregated WTGs or wind parks suitable for transient studies.The phasor domain equivalent of the generic model,suitable for protection tools based on steady-state solvers,is also considered.The model has been validated using two sets of actual relay records for the fault response of two wind parks consisting of Type-III WTGs and connected to115 kV and 230 kV transmission systems.The objective is to show that the generic model can reproduce the actual fault response in simulations,and protection engineers can obtain accurate models of wind parks using fault records.A distinctive characteristic of a WTG is its substantially different negative sequence fault current contribution compared to a synchronous generator.The paper shows that the generic model provides enough options to reproduce the negative sequence behavior and hence is suitable for fault studies involving negative sequence-based protection. 展开更多
关键词 Renewable generation WIND turbine GENERATOR DOUBLY-FED induction GENERATOR SHORT-CIRCUIT analysis Electromagnetic transient-type MODEL PHASOR domain MODEL
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Dual Control Strategy for Grid-tied Battery Energy Storage Systems to Comply with Emerging Grid Codes and Fault Ride Through Requirements 被引量:1
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作者 Maxime Berger Ilhan Kocar +1 位作者 evangelos farantatos Aboutaleb Haddadi 《Journal of Modern Power Systems and Clean Energy》 SCIE EI CSCD 2022年第4期977-988,共12页
Battery energy storage systems(BESSs)need to comply with grid code and fault ride through(FRT)requirements during disturbances whether they are in charging or discharging mode.Previous literature has shown that consta... Battery energy storage systems(BESSs)need to comply with grid code and fault ride through(FRT)requirements during disturbances whether they are in charging or discharging mode.Previous literature has shown that constant charging current control of BESSs in charging mode can prevent BESSs from complying with emerging grid codes such as the German grid code under stringent unbalanced fault conditions.To address this challenge,this paper proposes a new FRTactivated dual control strategy that consists of switching from constant battery current control to constant DC-link voltage control through a positive droop structure.The results show that the strategy ensures proper DC-link voltage and current management as well as adequate control of the positive-and negative-sequence active and reactive currents according to the grid code priority.It is also shown that the proposed FRT control strategy is tolerant to initial operating conditions of BESS plant,grid code requirements,and fault severity. 展开更多
关键词 Battery energy storage system inverter-based resource fault ride through electromagnetic transient
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A measurement-based approach for power system instability early warning 被引量:2
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作者 Feifei Bai Yong Liu +5 位作者 Yilu Liu Kai Sun Navin Bhatt Alberto Del Rosso evangelos farantatos Xiaoru Wang 《Protection and Control of Modern Power Systems》 2016年第1期17-25,共9页
Early warning of impending instability in a power system under disturbance conditions is important for preventing of system collapse.A measurement-based approach is proposed to assess the potential power system transi... Early warning of impending instability in a power system under disturbance conditions is important for preventing of system collapse.A measurement-based approach is proposed to assess the potential power system transient instability problem under cascading outages.Where a measurement-based index is obtained as the estimation accuracy of a linear autoregressive exogenous(ARX)model to estimate the dynamic response of the power system and indicate the system stability to some extent after a disturbance.The proposed approach was verified using a set of marginally stable cases in a 179-bus WECC equivalent power system.Then the instability early warning threshold for this system is obtained as 0.44. 展开更多
关键词 Autoregressive exogenous model Accuracy index Dynamic response estimation Instability early warning Measurement-based
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