scholarly journals Essence Electrical Power System Modelling & Simulation

2021 ◽  
Author(s):  
Ijaz Qureshi
Keyword(s):  
Power Generation ◽  
Power System ◽  
Power Distribution ◽  
Electrical Power ◽  
Primary Source ◽  
System Modelling ◽  
Ambient Conditions ◽  
Electrical Power System ◽  
Battery State Of Charge ◽  
Level Model

The following paper outlines and details both the modelling and simulation of the electrical power system employed on ESSENCE. ESSENCE is a low earth orbiting 3U CubeSat with GOMSPACE P110 PV cells as the primary source of power generation. The PV cells are analyzed under varying ambient conditions and resulting output parameters are identified and recorded. Each step of the modelling process is documented as well as reporting of assumptions made and resulting errors that are identified. A solar irradiance model is also developed to determine solar radiation that is incident upon the PV cell surface. With the radiation model and PV model, simulations are ran to determine power generation capabilities through orbit using pre-built simulations. The final stage to the electrical system that is analyzed includes power management and power storage onboard ESSENCE. A power distribution unit is developed to either charge or discharge the battery as loads are varied and finally, a battery state of charge and charge level model is built. Integrations tests are conducted to determine net power draws, both generation and loads through multiple orbits. The resultant battery state is reported upon conclusion of simulation.

scholarly journals Essence Electrical Power System Modelling & Simulation

2021 ◽  
Author(s):  
Ijaz Qureshi
Keyword(s):  
Power Generation ◽  
Power System ◽  
Power Distribution ◽  
Electrical Power ◽  
Primary Source ◽  
System Modelling ◽  
Ambient Conditions ◽  
Electrical Power System ◽  
Battery State Of Charge ◽  
Level Model

The following paper outlines and details both the modelling and simulation of the electrical power system employed on ESSENCE. ESSENCE is a low earth orbiting 3U CubeSat with GOMSPACE P110 PV cells as the primary source of power generation. The PV cells are analyzed under varying ambient conditions and resulting output parameters are identified and recorded. Each step of the modelling process is documented as well as reporting of assumptions made and resulting errors that are identified. A solar irradiance model is also developed to determine solar radiation that is incident upon the PV cell surface. With the radiation model and PV model, simulations are ran to determine power generation capabilities through orbit using pre-built simulations. The final stage to the electrical system that is analyzed includes power management and power storage onboard ESSENCE. A power distribution unit is developed to either charge or discharge the battery as loads are varied and finally, a battery state of charge and charge level model is built. Integrations tests are conducted to determine net power draws, both generation and loads through multiple orbits. The resultant battery state is reported upon conclusion of simulation.

Design of Low-Voltage Power Distribution System

2013 ◽  
Vol 791-793 ◽  
pp. 1889-1891
Author(s):  
Yan Li Fan ◽  
Qing En Li
Keyword(s):  
Power System ◽  
Power Distribution ◽  
Distribution System ◽  
Low Voltage ◽  
Electrical Power ◽  
Scientific Basis ◽  
Voltage Distribution ◽  
Electrical Power System ◽  
Power Distribution System ◽  
High Rise

The low-voltage distribution system is the key component of the electrical power system. Some analysis and research of the low-voltage distribution system is carried out in this paper, which provides some scientific basis to design the low-voltage distribution system. Firstly, the summarize of low-voltage distribution system is taken. The influence to productions and livings of low-voltage distribution system is introduced. Secondly, the mode of connection and design philosophy of low-voltage distribution system is studied in detail, especially the high-rise buildings low-voltage distribution system is concluded and summarized.

scholarly journals RANCANG BANGUN SIMULASI DISPLAY ARUS GANGGUAN RELAI PROTEKSI SEL 551 DI MASTER STATION PADA SCADA SURVALENT SEBAGAI UPAYA MEMPERBAIKI SAIDI

2015 ◽  
Vol 18 (2) ◽  
Author(s):  
Dzulfikar Muhammad Azhar ◽  
Yuniarto Yuniarto
Keyword(s):  
Power System ◽  
Power Distribution ◽  
Fault Location ◽  
Electrical Power ◽  
Electric Power System ◽  
Fault Current ◽  
Electrical Power System ◽  
Control Center ◽  
Current Value ◽  
Master Station

Dzulfikar Muhammad Azhar, Yuniarto, in this paper explian that disruption of the power distribution network of 20 KV greatly influence the level of reliability of electric power system. Localize interference by means of network down one by one causing a long recovery time. As a result, SAIDI relatively high value. Protection Relays 551 SEL has a feature that can save the nominal fault current value last received. The value stored in the relay memory. Value of fault current can be processed into the distance nuisance. Thus, the fault current value can help officers to track the fault location based on distance. SCADA as a system that monitors and controls the electrical power system equipment remotely in real time on duty to display the current value of disturbance located at 551 SEL protection relays to be sent to the Control Center or the Master Station. Keywords : SCADA, fault current, relay protection 551 SEL

Design and implementation of a power distribution system adopting overcurrent protection

2020 ◽  
Vol 124 (1281) ◽  
pp. 1789-1797
Author(s):  
M. Bekhti ◽  
M. Bensaada ◽  
M. Beldjehem
Keyword(s):  
Power Systems ◽  
Power System ◽  
Power Distribution ◽  
Distribution System ◽  
Electrical Power ◽  
Electrical Power System ◽  
Complete Evaluation ◽  
Power Distribution System ◽  
Design And Implementation ◽  
Overcurrent Protection

ABSTRACTOne of the most critical aspects of a small satellite is the electrical power system (EPS) since the electrical power is necessary for the satellite to operate correctly during its predefined lifetime. The electrical power system consists mainly of solar cells, batteries, voltage converters and protection circuits. The electrical power system is responsible of providing stable power to the rest of the satellite subsystems.In satellite electrical power systems, overcurrent protection is now becoming an important function handled by the power distribution module (PDM). This paper proposes a method to evaluate the suggested protection. With the proposed procedure we should be able to verify that every possible failure does not travel through the EPS and cause a fatal degradation of the electrical power system. This will allow a complete evaluation of functionality of the protection hardware.This paper discusses the design and implementation of the power distribution module (PDM) for the coming generation of small satellites for the Algerian Space Agency (ASAL). The design must provide a reliable protection for the subsystems from the overcurrent associated with a device failure.

scholarly journals Impact of Plug-in Electric Vehicles Integrated into Power Distribution System based on Voltage Dependent Power Flow

2018 ◽  
Author(s):  
Yuttana Kongjeen ◽  
Krischonme Bhumkittipich
Keyword(s):  
Power System ◽  
Electric Vehicles ◽  
Power Distribution ◽  
Distribution System ◽  
Power Flow ◽  
Electrical Power ◽  
Electrical Power System ◽  
Power Distribution System ◽  
Voltage Dependent ◽  
Voltage Deviation

This paper proposes the impact of plug-in electric vehicles integrated into power distribution system based on voltage dependent control. The plug-in electric vehicles was modeled as the static load model in power distribution systems under balanced load condition. The power flow analysis is determined by using the basic parameters of the electrical network. The main point of this study are compare with voltage magnitude profiles, load voltage deviation, and total power losses of the electrical power system. There are investigating the affected from constant power load, constant current load, constant impedance load and plug-in electric vehicles load, respectively. The IEEE 33 bus test system is used to test the proposed method by assigning each load type to a balanced load in steady state and applied the solving methodology based on the bus injection to branch injection matric, branch current to bus voltage matrix, and current injection matrix to solve the power flow problem. The simulation results showed that the plug-in electric vehicles load had the lowest impact compared to other loads. The lowest plug-in values for the electric vehicle loads were 0.062, 119.67 kW and 79.31 kVar for the load voltage deviation, total active power loss and total reactive power loss, respectively. Therefore, this study can be verified that the plug-in electric vehicles load were affected to the lowest of the electrical power system in condition to same sizing and position. So that, in condition to the plug-in electric vehicles load added into the electrical power system with the conventional load type or complex load type could be considered that the affected from the plug-in electric vehicles load in next study.

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