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There are several methods to control power flow in power systems:
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Generator voltage control is crucial for maintaining the stable operation of synchronous generators and wind turbines. In older models, a DC generator driven by the rotor delivers DC power to the rotor's field winding, and the power is transferred through slip rings and brushes. In the latest models, static or brushless exciters are used. Static exciters rectify AC power from the generator terminals and then transfer the DC power directly to the rotor. Brushless exciters, on the other hand,...
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Turbine-Governor Control01:17

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Turbine-governor control is crucial for maintaining power system stability by balancing turbine mechanical power output with electrical load demand. This mechanism ensures that generator frequency and rotor speed are within acceptable limits during load variations. Turbine-generator units store kinetic energy due to their rotating masses; this energy is released to meet the load requirement when the load increases. The electrical torque of turbines rises to meet the demand, whereas the...
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Control Systems: Applications01:25

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Electrical engineering plays a pivotal role in our daily lives, with control systems at the heart of many applications, from home appliances to sophisticated space shuttles. Control systems manage and regulate the behavior of devices and processes, ensuring they function safely, correctly, and efficiently.
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Load-frequency control01:28

Load-frequency control

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Load-frequency control (LFC) is vital for maintaining power system stability, ensuring that frequency and power flows remain within acceptable limits during load changes. Turbine-governor control eliminates rotor accelerations and decelerations following load changes. However, a steady-state frequency error persists when the change in the turbine-governor reference setting is zero. In an interconnected power system, each area agrees to export or import a scheduled amount of power through...
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Power System Distribution01:25

Power System Distribution

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Power system distribution involves delivering electrical energy from power plants to consumers through a network of transmission and distribution systems. The process begins at power plants, where energy from coal, gas, nuclear, water, and wind is converted into electrical energy. These plants use three-phase generators, typically rated between 50 to 1300 MVA, with terminal voltages ranging from a few kV to 20 kV, depending on the size and age of the units.
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Related Experiment Video

Updated: Jul 19, 2025

Experimental Investigation of the Hierarchical Control in DC Microgrids Using a Real-time Simulator
06:04

Experimental Investigation of the Hierarchical Control in DC Microgrids Using a Real-time Simulator

Published on: February 14, 2025

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A Vehicle-to-Grid System for Controlling Parameters of Microgrid System.

Jigar Sarda1, Yashrajsinh Raj1, Arpita Patel2

  • 1M. & V. Patel Department of Electrical Engineering, Chandubhai S. Patel Institute of Technology, Charotar University of Science & Technology, Anand 388421, Gujarat, India.

Sensors (Basel, Switzerland)
|August 12, 2023
PubMed
Summary
This summary is machine-generated.

Vehicle-to-grid (V2G) technology can stabilize microgrid frequency by controlling electric vehicles (EVs). This system effectively manages renewable energy sources and reduces power fluctuations with less than 5% error.

Keywords:
electric vehicle (EV)microgridphotovoltaic (PV)renewable energy sources (RESs)vehicle to grid (V2G)wind

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Area of Science:

  • Electrical Engineering
  • Renewable Energy Systems
  • Smart Grids

Background:

  • Large-scale adoption of hybrid electric vehicles necessitates robust power system solutions.
  • The vehicle-to-grid (V2G) concept offers a distributed reserve for power systems.
  • Microgrids require advanced control strategies to integrate diverse energy sources.

Purpose of the Study:

  • To propose and analyze a V2G technology for microgrid frequency control over a 24-hour cycle.
  • To evaluate the system's ability to manage energy and mitigate the variability of renewable energy sources.
  • To assess the impact of V2G integration on microgrid stability and performance.

Main Methods:

  • Modeling a microgrid simulating 2000 households with 400 electric vehicles (EVs) at a 1:5 ratio.
  • Conducting in-depth analysis of voltage, current, reactive, and active power within the microgrid.
  • Coordinating control of diesel generation, renewable energy source (RES) generation, power exchange, and EV generation.

Main Results:

  • The proposed V2G system effectively controls microgrid frequency by regulating load demand.
  • Energy management is enhanced, reducing the impact of uncertain and variable RES power generation.
  • System parameter variations across different operating scenarios resulted in errors confined to less than 5%.

Conclusions:

  • V2G technology provides an effective solution for microgrid frequency control and energy management.
  • The integration of V2G enhances the stability and performance of microgrids with significant renewable energy penetration.
  • The proposed control strategy demonstrates high accuracy and reliability for future power systems.