The powersystem is actually a network that comprisesa generation, distribution, and transmission system. It utilizes energy and converts it into electrical energy.
The power system that the devices connected to the systems like the synchronous generator, motor, transformer, circuit breaker, conductor, etc. The power plant, transformer, substations, distribution line, transmission line, and distribution transformer are the 6 main components of the power system.
Power system analyses are an important part of an electrical power system plan. Calculations and simulations are carried out to verify that the electrical system, which comprises the system components that are properlydetailed to do as intended, withstand predictable stress and be protected against failures.
Electrical systems vary on the basis of:
The type of system Earthingmust be chosen carefully as it essentially determines the behavior and properties of the supply system. It is also a contributing factor to issues associated with system usage, likely:
Due to the natural condition, hydroelectric and wind power is operating dynamically.The power produced by water is associated with the pressure and current velocity, and power produced by wind is associated with the 3rd power of the wind velocity. We can attain variable-speed constant-frequency excitation through the power electronic devices, so we can change the speed of rotor excitation so that when the rotor excitation current speed is added with its own speed is reliable with the stator occurrence, it can operate with the extremeactive power, through which improve power generation quality and power generation efficacy.
Originally, power electronics were applied to High Voltage DC Transmission as the power system formulates, the demand of transmission distance and capability was becoming remarkable, the structure of power was more difficult. There would be a great cost of transmission line and ability if we still continue the use of AC transmission. Demand forms productivity. HVDC performed. Power energy formulated by the alternating-current generator is moved to thyristor rectifier that makes a current change to direct current from alternating current after stepped up by boost transform. Lastly, power energy will be allotted to users after inversion and stepped down by a step-down modifier. Compared to AC transmission, HVDC is more favorable to far-distance and large-capacity power energy transmission or submarine or underground cable transmission, system control, and power grid connection.
With the continuousprogress of technology and society, power quality leads more and more people to pay consideration. The large-scale wind power station, microgrid, electric vehicle, photovoltaic, etc., these parallel facilities operations would have some effect on the quality of power. FACTS is highly dependent upon power electronic devices, that are associated with modern control theory to control former power system key factor and grid topology.