Engineering, Technology & Applied Science Research
As the demand for renewable energy continues to increase, wind power has emerged as a prominent s... more As the demand for renewable energy continues to increase, wind power has emerged as a prominent source of clean energy. However, incorporating wind energy into the power generation system at a high level can significantly impact the dynamic performance of the power system, resulting in increased uncertainties during operation. This study investigated the effectiveness of the Multi-Band Power System Stabilizer (MBPSS), a new power system stabilizer, in suppressing dynamic oscillations in a multi-machine power system connected to a wind farm. This research focused on analyzing the transient stability of a nine-bus network, commonly known as the Western System Coordinating Council (WSCC), integrated with a Doubly Fed Induction Generator (DFIG) using MATLAB/Simulink. The study evaluated the dynamic performance of the proposed system under fault conditions, including Line-to-Line-to-Line-to-Ground (LLLG) faults. Simulation results showed that MBPSS effectively dampened oscillations and i...
Engineering, Technology & Applied Science Research
The distribution system acts as a conduit between the consumer and the bulk power grid. Due to ch... more The distribution system acts as a conduit between the consumer and the bulk power grid. Due to characteristics such as a high resistance/reactance ratio, distribution networks cannot be solved using conventional methods, such as the Gauss-Seidel and Newton–Raphson. This research proposes a method for the calculation of the power flow in radial networks that considers their wide range of resistance and reactance values, PV generator characteristics, and radial structure. An iterative methodology is employed, with each iteration beginning with the branch that has the highest accurate power flow solution. The procedure is reliable and effective over various workloads and network configurations. To confirm the effectiveness of the suggested technique on the simple and IEEE 33-bus radial distribution system, simulations were carried out in MATLAB. The implications of including a renewable energy source, such as a PV generator, in the network under consideration are investigated by simula...
The dynamic modeling, control, and simulation of renewable energy sources connected to the electr... more The dynamic modeling, control, and simulation of renewable energy sources connected to the electrical grid are investigated in this study. Photovoltaic (PV) systems and wind systems connected to the power grid via the point of common connection (PCC) were the only two systems included in our study. Simulation and control methodologies are provided. For both PV arrays, the method of extracting maximum power point tracking (MPPT) is utilized to obtain the highest power under standard test conditions (STC: 1000 W/m2, 25 °C). A power electronics converter that can transform DC voltage into three-phase AC voltage is required to connect a PV system to the grid. Insulated gate bipolar transistors (IGBTs) are utilized in a three-level voltage source converter (VSC). The distribution network is connected to this three-phase VSC by way of a step-up transformer and filter. During synchronous rotation in the d−q reference frame, the suggested control for the three-level solar power system that ...
Low-voltage (LV) and high-voltage (HV) DC distribution systems are being investigated as alternat... more Low-voltage (LV) and high-voltage (HV) DC distribution systems are being investigated as alternatives due to the growth of DC distribution energy resources (DER), DC loads such as solar and wind power systems, and energy storage sources (ESSs). Furthermore, an HV/LV DC distribution system offers various advantages, including lower conversion losses, an easier connecting strategy for DC DERs, and less complex power management techniques. As renewable energy sources are increasingly incorporated into the electrical grid, it is important to create novel, effective approaches for connecting such sources and loads. It would hence be effective to merge DC distribution with AC distribution to fulfill the energy demands of both DC and AC consumers. To this end, this study proposes a multizone design with four buses: low-voltage direct current (LVDC), high-voltage direct current (HVDC), low-voltage alternating current (LVAC), and an electrical grid. A model of this system that covers crucial...
Wind power production is considered as the most promising of all renewable energy supplies to mee... more Wind power production is considered as the most promising of all renewable energy supplies to meet the global pledge to climate change. Among all wind power solutions, the Fixed Speed Wind Turbines (FSWT) employing Squirrel Cage Induction Generators (SCIG) is the simplest and cheapest for grid connection. This paper deals with mathematical modeling of a wind turbine based on a (SCIG) integrated into medium voltage electrical networks. A control system for blade pitch angle based on Proportional Integral (PI) controller was performed. In this paper, the dynamic behavior of a (FSWT) connected to the grid is studied. Different types of fault condition are created, simulated and analyzed on the grid side. Faults are applied closely to the grid and cleared by disconnecting and establishing the faulty line.
With its three frequency bands structure, the new Multi Band Power System Stabilizer (MB-PSS) has... more With its three frequency bands structure, the new Multi Band Power System Stabilizer (MB-PSS) has recently been associated with the Automatic Voltage Regulator (AVR) in order to improve the power systems' stability. This paper studies the performances of the power regulator (MB-PSS) on the damping of the dynamic multi-machine power system. These performances are compared with two conventional power system stabilizers (C-PSS): The one fed from the speed deviation signal called (dw-PSS) and the second is fed from the acceleration power signal and called (dPa-PSS). A network of nine-bus which is known in the literature as « Western System Coordinating Council » (WSCC) was used to compare the effectiveness of regulators (AVR only, MB-PSS with AVR, dw-PSS with AVR and dPa-PSS with AVR). Following a balanced three-phase fault, the simulation results show the benefit of using MB-PSS which ensures maximum damping is local or interregional modes.
Engineering, Technology & Applied Science Research
As the demand for renewable energy continues to increase, wind power has emerged as a prominent s... more As the demand for renewable energy continues to increase, wind power has emerged as a prominent source of clean energy. However, incorporating wind energy into the power generation system at a high level can significantly impact the dynamic performance of the power system, resulting in increased uncertainties during operation. This study investigated the effectiveness of the Multi-Band Power System Stabilizer (MBPSS), a new power system stabilizer, in suppressing dynamic oscillations in a multi-machine power system connected to a wind farm. This research focused on analyzing the transient stability of a nine-bus network, commonly known as the Western System Coordinating Council (WSCC), integrated with a Doubly Fed Induction Generator (DFIG) using MATLAB/Simulink. The study evaluated the dynamic performance of the proposed system under fault conditions, including Line-to-Line-to-Line-to-Ground (LLLG) faults. Simulation results showed that MBPSS effectively dampened oscillations and i...
Engineering, Technology & Applied Science Research
The distribution system acts as a conduit between the consumer and the bulk power grid. Due to ch... more The distribution system acts as a conduit between the consumer and the bulk power grid. Due to characteristics such as a high resistance/reactance ratio, distribution networks cannot be solved using conventional methods, such as the Gauss-Seidel and Newton–Raphson. This research proposes a method for the calculation of the power flow in radial networks that considers their wide range of resistance and reactance values, PV generator characteristics, and radial structure. An iterative methodology is employed, with each iteration beginning with the branch that has the highest accurate power flow solution. The procedure is reliable and effective over various workloads and network configurations. To confirm the effectiveness of the suggested technique on the simple and IEEE 33-bus radial distribution system, simulations were carried out in MATLAB. The implications of including a renewable energy source, such as a PV generator, in the network under consideration are investigated by simula...
The dynamic modeling, control, and simulation of renewable energy sources connected to the electr... more The dynamic modeling, control, and simulation of renewable energy sources connected to the electrical grid are investigated in this study. Photovoltaic (PV) systems and wind systems connected to the power grid via the point of common connection (PCC) were the only two systems included in our study. Simulation and control methodologies are provided. For both PV arrays, the method of extracting maximum power point tracking (MPPT) is utilized to obtain the highest power under standard test conditions (STC: 1000 W/m2, 25 °C). A power electronics converter that can transform DC voltage into three-phase AC voltage is required to connect a PV system to the grid. Insulated gate bipolar transistors (IGBTs) are utilized in a three-level voltage source converter (VSC). The distribution network is connected to this three-phase VSC by way of a step-up transformer and filter. During synchronous rotation in the d−q reference frame, the suggested control for the three-level solar power system that ...
Low-voltage (LV) and high-voltage (HV) DC distribution systems are being investigated as alternat... more Low-voltage (LV) and high-voltage (HV) DC distribution systems are being investigated as alternatives due to the growth of DC distribution energy resources (DER), DC loads such as solar and wind power systems, and energy storage sources (ESSs). Furthermore, an HV/LV DC distribution system offers various advantages, including lower conversion losses, an easier connecting strategy for DC DERs, and less complex power management techniques. As renewable energy sources are increasingly incorporated into the electrical grid, it is important to create novel, effective approaches for connecting such sources and loads. It would hence be effective to merge DC distribution with AC distribution to fulfill the energy demands of both DC and AC consumers. To this end, this study proposes a multizone design with four buses: low-voltage direct current (LVDC), high-voltage direct current (HVDC), low-voltage alternating current (LVAC), and an electrical grid. A model of this system that covers crucial...
Wind power production is considered as the most promising of all renewable energy supplies to mee... more Wind power production is considered as the most promising of all renewable energy supplies to meet the global pledge to climate change. Among all wind power solutions, the Fixed Speed Wind Turbines (FSWT) employing Squirrel Cage Induction Generators (SCIG) is the simplest and cheapest for grid connection. This paper deals with mathematical modeling of a wind turbine based on a (SCIG) integrated into medium voltage electrical networks. A control system for blade pitch angle based on Proportional Integral (PI) controller was performed. In this paper, the dynamic behavior of a (FSWT) connected to the grid is studied. Different types of fault condition are created, simulated and analyzed on the grid side. Faults are applied closely to the grid and cleared by disconnecting and establishing the faulty line.
With its three frequency bands structure, the new Multi Band Power System Stabilizer (MB-PSS) has... more With its three frequency bands structure, the new Multi Band Power System Stabilizer (MB-PSS) has recently been associated with the Automatic Voltage Regulator (AVR) in order to improve the power systems' stability. This paper studies the performances of the power regulator (MB-PSS) on the damping of the dynamic multi-machine power system. These performances are compared with two conventional power system stabilizers (C-PSS): The one fed from the speed deviation signal called (dw-PSS) and the second is fed from the acceleration power signal and called (dPa-PSS). A network of nine-bus which is known in the literature as « Western System Coordinating Council » (WSCC) was used to compare the effectiveness of regulators (AVR only, MB-PSS with AVR, dw-PSS with AVR and dPa-PSS with AVR). Following a balanced three-phase fault, the simulation results show the benefit of using MB-PSS which ensures maximum damping is local or interregional modes.
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