Modern Photovoltaic Installation Connected to the Distribution and Transport Network| Chapter 1 | Current Overview on Science and Technology Research Vol. 5

 The research on photovoltaic (PV) installations linked to the electrical distribution and transport network, as well as these malfunction detection devices, is the subject of this chapter. This project relies on injecting 16 KW of power onto the medium voltage electrical network from a PV panel field (25 KV). We have interposed blocks that control the opening and closing of the power switches of the DC/AC converter and synchronise the phase, amplitude, as well as the frequency of the voltage and current, injected into the electrical network in order to make the injection system reliant on the network and to minimise power losses. The simulation results demonstrate that the planned system detects system failures on the network side (voltage dip, phase shedding, frequency fluctuation, imbalance of the three-phase system), on the field side of the PV panel (distrust of converters, etc.), and ensures that electrical energy is injected into the network while the PV generators are operating.

Author(s) Details:

A. Lamkaddem,
Department of Physics, Faculty of Science, Mohamed First University, Laboratory of Electromagnetic, Signal Processing & Renewable Energy LESPRE, Team Electronic Materials & Renewable Energy EMRE, Oujda, Morocco.

N. El Moussaoui,
Department of Physics, Faculty of Science, Mohamed First University, Laboratory of Electromagnetic, Signal Processing & Renewable Energy LESPRE, Team Electronic Materials & Renewable Energy EMRE, Oujda, Morocco.

M. Rhiat,
Department of Physics, Faculty of Science, Mohamed First University, Laboratory of Electromagnetic, Signal Processing & Renewable Energy LESPRE, Team Electronic Materials & Renewable Energy EMRE, Oujda, Morocco.

K. Kassmi,
Department of Physics, Faculty of Science, Mohamed First University, Laboratory of Electromagnetic, Signal Processing & Renewable Energy LESPRE, Team Electronic Materials & Renewable Energy EMRE, Oujda, Morocco.

R. Malek,
Department of Physics, Faculty of Science, Mohamed First University, Laboratory of Electromagnetic, Signal Processing & Renewable Energy LESPRE, Team Electronic Materials & Renewable Energy EMRE, Oujda, Morocco.

Please see the link here: https://stm.bookpi.org/COSTR-V5/issue/view/816

Coordinated Power Scheme to Mitigate Power Curtailment in the Application of a Microgrid | Chapter 2 | Research Developments in Science and Technology Vol. 8

In certain cases, while the percentage of renewable energy (RE) has grown, the output of RE has decreased. In the present energy market, wind power (WP) curtailments expand along with the percentage of photovoltaics (PV), adding to the challenges encountered by wind farm owners. In this paper, a method of supervisory power coordination is suggested. The main objectives are to prevent more RE electricity from entering the grid, which would cause curtailments. The suggested scheme is to build a grid-connected microgrid system to be run exclusively in response to loads and virtual power plant (VPP) requests such that the system is operated as an independent microgrid when there is no VPP request. This is done in order to make the proposed scheme practical. The efficacy of the proposed approach was examined using computer simulations in the MATLAB/Simulink environment. The verification was done using voltage criteria, including the AC voltage regulation between 6% of the rated AC voltage, the DC voltage regulation between 10% of the rated DC voltage, the power balance according to fluctuations in the loads, and the VPP demands for power. The simulation showed that the suggested technique is viable and warranted, not only for deploying different system configurations but also for minimising power curtailment.

Author(s) Details:

Heesang Ko,

Power System Research Team, Korea Institute of Energy Research, Jeju, Korea.

Gihoon Kim,

Power System Research Team, Korea Institute of Energy Research, Jeju, Korea.

Yanghyun Nam,

Power System Research Team, Korea Institute of Energy Research, Jeju, Korea.

Kyungsang Ryu,

Power System Research Team, Korea Institute of Energy Research, Jeju, Korea.

Please see the link here: https://stm.bookpi.org/RDST-V8/article/view/7395