TY - JOUR
T1 - Anti-Islanding Protection of PV-based Microgrids Consisting of PHEVs using SVMs
AU - Baghaee, H. R.
AU - Mlakić, D.
AU - Nikolovski, S.
AU - Dragičević, Tomislav
PY - 2020/1
Y1 - 2020/1
N2 - The cheap and reliable primal energy source for battery energy storage system (BESS) refueling necessitates a special attention for combining renewable energy resources with plug-in hybrid electric vehicle (PHEV) charging stations in microgrids. Rapid charging is an operation mode of PHEV for drivers which demands fast recharging of BESSs of the electric cars. This charging mode manifests as low impedance short circuit at dc side, making power transient on power grid side. This paper presents a new anti-islanding protection scheme for low-voltage-sourced converter-based microgrids by exploiting support vector machines (SVMs). The proposed anti-islanding protection method exploits powerful classification capability of SVMs. The sensor monitors seven inputs measured at the point of common coupling (PCC), namely, root-mean-square (RMS) value of voltage and current ( RMS_{V} , RMS_{I} ), total harmonic distortion (THD) of voltage and current ( THD_{V} , THD_{I} ), frequency ( f ), and also active and reactive powers ( P , Q ). This approach is based on passive monitoring and therefore, it does not affect the power quality (PQ). In order to cover as many situations as possible, minimize false tripping and remain selective, training, and detection procedures are simply introduced. Based on the presented sampling method and input model, the proposed method is tested under different conditions such as PHEV rapid charging, additional load change and multiple distributed generations at the same PCC. Simulations based on the model and parameters of a real-life practical photovoltaic power plant are performed in MATLAB/Simulink environment, and several tests are executed based on different scenarios and compared with previously reported techniques, this analysis proved the effectiveness, authenticity, selectivity, accuracy, and precision of the proposed method with allowable impact on PQ according to UL1741 standard, and its superiority over other methods.
AB - The cheap and reliable primal energy source for battery energy storage system (BESS) refueling necessitates a special attention for combining renewable energy resources with plug-in hybrid electric vehicle (PHEV) charging stations in microgrids. Rapid charging is an operation mode of PHEV for drivers which demands fast recharging of BESSs of the electric cars. This charging mode manifests as low impedance short circuit at dc side, making power transient on power grid side. This paper presents a new anti-islanding protection scheme for low-voltage-sourced converter-based microgrids by exploiting support vector machines (SVMs). The proposed anti-islanding protection method exploits powerful classification capability of SVMs. The sensor monitors seven inputs measured at the point of common coupling (PCC), namely, root-mean-square (RMS) value of voltage and current ( RMS_{V} , RMS_{I} ), total harmonic distortion (THD) of voltage and current ( THD_{V} , THD_{I} ), frequency ( f ), and also active and reactive powers ( P , Q ). This approach is based on passive monitoring and therefore, it does not affect the power quality (PQ). In order to cover as many situations as possible, minimize false tripping and remain selective, training, and detection procedures are simply introduced. Based on the presented sampling method and input model, the proposed method is tested under different conditions such as PHEV rapid charging, additional load change and multiple distributed generations at the same PCC. Simulations based on the model and parameters of a real-life practical photovoltaic power plant are performed in MATLAB/Simulink environment, and several tests are executed based on different scenarios and compared with previously reported techniques, this analysis proved the effectiveness, authenticity, selectivity, accuracy, and precision of the proposed method with allowable impact on PQ according to UL1741 standard, and its superiority over other methods.
KW - Anti-islanding protection
KW - distributed generation
KW - microgrid
KW - photovoltaic
KW - plug-in hybrid electric vehicles
KW - power quality
KW - support vector machine.
KW - Anti-islanding protection
KW - Distributed generation
KW - Microgrid
KW - Photovoltaic
KW - Plug-in hybrid electric vehicles
KW - Power quality
KW - Support vector machine
KW - photovoltaic
KW - plug-in hybrid electric vehicles
KW - distributed generation
KW - support vector machine
KW - microgrid
KW - power quality
UR - http://www.scopus.com/inward/record.url?scp=85077367022&partnerID=8YFLogxK
U2 - 10.1109/TSG.2019.2924290
DO - 10.1109/TSG.2019.2924290
M3 - Journal article
SN - 1949-3053
VL - 11
SP - 483
EP - 500
JO - IEEE Transactions on Smart Grid
JF - IEEE Transactions on Smart Grid
IS - 1
M1 - 8743477
ER -