Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Ashraf Mohamed Hemeida"'
Autor:
Ashraf Mohamed Hemeida, Omima Bakry, Salem Alkhalaf, Alexey Mikhaylov, Ahmed F. Zobaa, Tomonobu Senjyu, Saad Mikhailef, Mostafa Dardeer
Publikováno v:
Ain Shams Engineering Journal, Vol 15, Iss 1, Pp 102340- (2024)
A distribution system's network reconfiguration is the process of altering the open/closed status of sectionalizing and tie switches to change the topological structure of distribution feeders. For the last two decades, numerous heuristic search evol
Externí odkaz:
https://doaj.org/article/acbb05d2e98d440a95e472baa56e6105
Autor:
Akito Nakadomari, Narayanan Krishnan, Ashraf Mohamed Hemeida, Hiroshi Takahashi, Eitaro Omine, Tomonobu Senjyu
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 234-241 (2023)
This paper proposes a coordinated voltage control by three-phase step voltage regulators (3ϕSVRs) and photovoltaic (PV) units with smart inverters. An optimization problem is formulated to improve the voltage profile of distribution networks and red
Externí odkaz:
https://doaj.org/article/fdb56587f93348bfa96c166cb0d618d9
Autor:
Yongyi Huang, Harun Or Rashid Howlader, Ashraf Mohamed Hemeida, Narayanan K., Hasan Masrur, Muhammad Khalid, Alexey Mikhaylov, Tomonobu Senjyu
Publikováno v:
Franklin Open, Vol 5, Iss , Pp 100049- (2023)
This paper compares the differences in power generation and resident experience between S-shape and M-shape photovoltaic (PV) systems at the same location with the same number of modules. First, the sky anisotropy model (Hay-Davies-Klucher-Reindl, HD
Externí odkaz:
https://doaj.org/article/f7ee12a84407483cb7df10a6929d6ab6
Publikováno v:
Ain Shams Engineering Journal, Vol 14, Iss 8, Pp 102055- (2023)
Artificial intelligence (AI), often known as machine learning, is a powerful tool for solving engineering problems. The evaluation of the network reliability of a flow network is a NP-hard problem, with computational effort growing exponentially with
Externí odkaz:
https://doaj.org/article/2521abec05ea4b1c9d2b651681d3a9f7
Autor:
Soichiro Ueda, Atsushi Yona, Shriram Srinivasarangan Rangarajan, Edward Randolph Collins, Hiroshi Takahashi, Ashraf Mohamed Hemeida, Tomonobu Senjyu
Publikováno v:
Energies, Vol 16, Iss 5, p 2468 (2023)
The urgent need to reduce greenhouse gas emissions to achieve a decarbonized society has led to the active introduction of electric vehicles worldwide. Renewable energy sources that do not emit greenhouse gases during charging must also be used. Howe
Externí odkaz:
https://doaj.org/article/4d3b8cacaa3a48e5814f3442f8596e71
Autor:
Ashraf Mohamed Hemeida, Ahmed Shaban Omer, Ayman M. Bahaa-Eldin, Salem Alkhalaf, Mahrous Ahmed, Tomnobu Senjyu, Gaber El-Saady
Publikováno v:
Ain Shams Engineering Journal, Vol 13, Iss 1, Pp 101543- (2022)
Hybrid micro-grid systems (HMGS) are small scale power system where the energy sources are installed to supply local customers. These systems may be considered as promising energy solution to meet the increased in energy demand and traditional source
Externí odkaz:
https://doaj.org/article/5dcb5a3f161f48a397fe5265804ccaed
Autor:
Ashraf Mohamed Hemeida, Mohamed M. Hamada, Youssef A. Mobarak, A. El-Bahnasawy, Mohamed G. Ashmawy, Tomonobu Senjyu
Publikováno v:
Ain Shams Engineering Journal, Vol 11, Iss 3, Pp 587-609 (2020)
The power system voltage controls are developed by generator excitation control, and power system components such as loads and transformers that generally absorb reactive power. This paper presents implementation of thyristor control series capacitor
Externí odkaz:
https://doaj.org/article/aa2b707c73a141edb3f3c905af887950
Autor:
Ashraf Mohamed Hemeida, Somaia Awad Hassan, Al-Attar Ali Mohamed, Salem Alkhalaf, Mountasser Mohamed Mahmoud, Tomonobu Senjyu, Ayman Bahaa El-Din
Publikováno v:
Ain Shams Engineering Journal, Vol 11, Iss 3, Pp 659-675 (2020)
Recently, an explosive growth in the potential use of natural metaphors in modelling and solving large-scale non-linear optimization problems. Artificial neural network (ANN) is a potent gadget broadly utilized in many data classification tasks. Fund
Externí odkaz:
https://doaj.org/article/dff2b4cf49324945887bdf418555fceb
Autor:
Akito Nakadomari, Ryuto Shigenobu, Takeyoshi Kato, Narayanan Krishnan, Ashraf Mohamed Hemeida, Hiroshi Takahashi, Tomonobu Senjyu
Publikováno v:
Energies, Vol 14, Iss 11, p 2997 (2021)
Penetration of equipment such as photovoltaic power generations (PV), heat pump water heaters (HP), and electric vehicles (EV) introduces voltage unbalance issues in distribution systems. Controlling PV and energy storage system (ESS) outputs or coor
Externí odkaz:
https://doaj.org/article/561d284972ef4f29b86a423e89dd1cc8
A Comparative Design of a Campus Microgrid Considering a Multi-Scenario and Multi-Objective Approach
Autor:
Yongyi Huang, Hasan Masrur, Ryuto Shigenobu, Ashraf Mohamed Hemeida, Alexey Mikhaylov, Tomonobu Senjyu
Publikováno v:
Energies, Vol 14, Iss 11, p 2853 (2021)
This article proposes a plan to replace real-time power with constant power from the grid to reduce costs and reduce the impact of the micro-grid on the main grid at the same time. Most of the peak electricity consumption periods of universities or s
Externí odkaz:
https://doaj.org/article/87874cd641ec43b9bbcdd65ebd876239