@article{MTMT:34837220, title = {Single-cycle P Class phasor estimation based on harmonics whitening and off-nominal frequency offset adjustment}, url = {https://m2.mtmt.hu/api/publication/34837220}, author = {Macii, D. and Bashian, A. and Shan, X. and Fontanelli, D. and Wen, H. and Petri, D.}, doi = {10.1016/j.epsr.2024.110119}, journal-iso = {ELECTR POW SYST RES}, journal = {ELECTRIC POWER SYSTEMS RESEARCH}, volume = {229}, unique-id = {34837220}, issn = {0378-7796}, abstract = {Phasor Measurement Units (PMUs) are essential for real-time power system monitoring and control. In this paper, a novel algorithm for protection (i.e., P Class) PMUs is presented. The proposed algorithm consists of four steps: preliminary narrowband disturbance whitening; estimation of the off-nominal fundamental frequency offset through the Interpolated Discrete Time Fourier Transform (IpDFT); data record length adjustment to refine narrowband disturbance whitening over an integer number of fundamental periods; time-domain estimation of the Taylor's series coefficients of the synchrophasor function through a weighted least-squares estimator (after correction of possible static off-nominal deviations). The key novel contribution of the proposed approach is its superior ability to smooth harmonic disturbances over shorter observation intervals than many existing algorithms (which typically require at least two-cycle-long data records to meet P Class accuracy requirements), while ensuring a good tracking capability of transient events with a reasonable execution time. Several simulation and experimental results confirm that, in the case of multi-harmonic distortion, the proposed approach returns more accurate results than both the basic Taylor-series-based Weighted Least-Squares (TWLS) estimator and other whitening-based techniques, while ensuring compliance with P Class specifications even over one-cycle-long data records. © 2024 The Author(s)}, keywords = {PHASE MEASUREMENT; Time domain analysis; Harmonic analysis; Taylor series; Fourier series; Frequency estimation; Frequency allocation; Single cycle; Power system measurements; Frequency offsets; Phasor measurement units; Electric power system protection; Phasor measurement unit; Harmonics rejection; Taylor-series; Phasor estimation; Phasor measurement units (PMUs); Protection equipment; Protection equipment; Harmonic-rejection; Narrowband disturbances; Off-nominal frequency; Weighted least-squares estimators}, year = {2024}, eissn = {1873-2046} } @article{MTMT:34789499, title = {Capacity optimization allocation method for off-grid RES-H2 microgrid system considering the load-follow-source mechanism}, url = {https://m2.mtmt.hu/api/publication/34789499}, author = {Zhang, Jie and Xiao, Fei and Ma, Fan and Sun, Lin and Zhang, Yan and Xiao, Runlong}, doi = {10.1016/j.epsr.2024.110378}, journal-iso = {ELECTR POW SYST RES}, journal = {ELECTRIC POWER SYSTEMS RESEARCH}, volume = {231}, unique-id = {34789499}, issn = {0378-7796}, year = {2024}, eissn = {1873-2046}, pages = {110378} } @article{MTMT:34672896, title = {A two-stage stochastic programming approach for planning of SVCs in PV microgrids under load and PV uncertainty considering PV inverters reactive power using Honey Badger algorithm}, url = {https://m2.mtmt.hu/api/publication/34672896}, author = {Elazab, Rasha and Ser-Alkhatm, M. and Abu Adma, Maged A. and Abdel-Latif, K. M.}, doi = {10.1016/j.epsr.2023.109970}, journal-iso = {ELECTR POW SYST RES}, journal = {ELECTRIC POWER SYSTEMS RESEARCH}, volume = {228}, unique-id = {34672896}, issn = {0378-7796}, keywords = {Two-stage stochastic programming; honey badger algorithm; distributed PV plants; reactive power compensator sizing}, year = {2024}, eissn = {1873-2046} } @article{MTMT:34671432, title = {Frequency stabilization and synchronization between grid and AC microgrid}, url = {https://m2.mtmt.hu/api/publication/34671432}, author = {Acharya, Srinivasa and Kumar, D. Vijaya}, doi = {10.1016/j.epsr.2023.110045}, journal-iso = {ELECTR POW SYST RES}, journal = {ELECTRIC POWER SYSTEMS RESEARCH}, volume = {228}, unique-id = {34671432}, issn = {0378-7796}, keywords = {STABILITY; CONTROLLERS; multi-level inverter; multi-microgrid; Non-linear loads; Unbalanced load}, year = {2024}, eissn = {1873-2046} } @article{MTMT:34671058, title = {Symbiosis organisms search algorithm for reactive power compensation of STATCOM-PID assisted isolated wind integrated hybrid power system model}, url = {https://m2.mtmt.hu/api/publication/34671058}, author = {Bam, Gomar and Guchhait, Pabitra Kumar and Banerjee, Abhik and Deepa, S. N.}, doi = {10.1016/j.epsr.2023.109949}, journal-iso = {ELECTR POW SYST RES}, journal = {ELECTRIC POWER SYSTEMS RESEARCH}, volume = {227}, unique-id = {34671058}, issn = {0378-7796}, keywords = {MODEL; Demand side management; reactive power compensation; Symbiosis organisms search; Isolated wind-diesel hybrid power system; STATCOM-PID}, year = {2024}, eissn = {1873-2046} } @article{MTMT:34670330, title = {A modified adaptive beluga whale optimization based on spiral search and elitist strategy for short-term hydrothermal scheduling}, url = {https://m2.mtmt.hu/api/publication/34670330}, author = {Shen, Xiaohui and Wu, Yonggang and Li, Lingxi and Zhang, Tongxin}, doi = {10.1016/j.epsr.2023.110051}, journal-iso = {ELECTR POW SYST RES}, journal = {ELECTRIC POWER SYSTEMS RESEARCH}, volume = {228}, unique-id = {34670330}, issn = {0378-7796}, keywords = {Beluga whale optimization; Elitist strategy; Short-term hydrothermal scheduling; Spiral search; Adaptive balance factor}, year = {2024}, eissn = {1873-2046} } @article{MTMT:34662469, title = {Coupled modelling and simulation of power transmission lines: A systematic analysis of line losses}, url = {https://m2.mtmt.hu/api/publication/34662469}, author = {Living, O. and Nnamchi, S. N. and Mundu, M. M. and Ukagwu, K. J. and Abdulkarim, A.}, doi = {10.1016/j.epsr.2023.109954}, journal-iso = {ELECTR POW SYST RES}, journal = {ELECTRIC POWER SYSTEMS RESEARCH}, volume = {226}, unique-id = {34662469}, issn = {0378-7796}, keywords = {Transmission line; Modeling and simulation; CORONA; Line losses; power coupling; Ohm and deterioration constant}, year = {2024}, eissn = {1873-2046} } @article{MTMT:34661553, title = {Power quality enhancement and improved dynamics of a grid tied PV system using equilibrium optimization control based regulation of DC bus voltage}, url = {https://m2.mtmt.hu/api/publication/34661553}, author = {Chankaya, Mukul and Naqvi, Syed Bilal Qaiser and Hussain, Ikhlaq and Singh, Bhim and Ahmad, Aijaz}, doi = {10.1016/j.epsr.2023.109911}, journal-iso = {ELECTR POW SYST RES}, journal = {ELECTRIC POWER SYSTEMS RESEARCH}, volume = {226}, unique-id = {34661553}, issn = {0378-7796}, keywords = {Optimization; Regulation; Power quality; photovoltaic generation; Equilibrium optimization based DC bus voltage}, year = {2024}, eissn = {1873-2046}, orcid-numbers = {Chankaya, Mukul/0000-0003-1863-4282; Naqvi, Syed Bilal Qaiser/0000-0003-1378-509X; Singh, Bhim/0000-0003-4759-7484} } @article{MTMT:34646760, title = {Utilizing virtual power plants to support main grid for frequency regulation}, url = {https://m2.mtmt.hu/api/publication/34646760}, author = {Guo, Jinrui and Dou, Chunxia and Yue, Dong and Zhang, Zhijun}, doi = {10.1016/j.epsr.2024.110115}, journal-iso = {ELECTR POW SYST RES}, journal = {ELECTRIC POWER SYSTEMS RESEARCH}, volume = {229}, unique-id = {34646760}, issn = {0378-7796}, keywords = {frequency regulation; Power loss; Virtual power plants; Power Prediction; Aggregation nodes; Compensation design}, year = {2024}, eissn = {1873-2046} } @article{MTMT:34609196, title = {Analysis of the calculation methods for shell circulating current and grounding current in 500 kV HGIS and the optimization of grounding scheme}, url = {https://m2.mtmt.hu/api/publication/34609196}, author = {Huang, Wentao and Zhang, Yaqi and Han, Yongxia and Jian, Xianghao}, doi = {10.1016/j.epsr.2023.110041}, journal-iso = {ELECTR POW SYST RES}, journal = {ELECTRIC POWER SYSTEMS RESEARCH}, volume = {228}, unique-id = {34609196}, issn = {0378-7796}, abstract = {The strong electromagnetic coupling between the wire and the shell of Hybrid Gas Insulated Switchgear (HGIS) will lead to a large induced current on the shell, which will further cause local heating of the outside shell. Moreover, the utilization of grounding wire to release this current may also lead to the problem of its heating and ground potential rise. This study is intended to further promote the calculation accuracy of the shell circulating current and grounding current of the 500 kV HGIS and also propose the proper grounding schemes. The simulation results show that the ground grid must be considered in the calculation model and the phase difference of the conductor current could be ignored when the three-phase spacing exceeded 7.5 m. Furthermore, the influences of shorting bars and ground grid on the simulation results were compared and analyzed, and the optimization of grounding scheme and corresponding suggestions were put forward. Generally, it was not recommended to erect shorting bars and auxiliary ground grids. But if the temperature rise exceeds the limit, the shorting bars can be added at the two ends of a HGIS branch and the auxiliary ground grid should be laid using materials with higher flow capacity.}, keywords = {Electromagnetic transient; HGIS; Shell circulating current; Grounding current; Grounding scheme}, year = {2024}, eissn = {1873-2046} }