SYNCHRONIZING ALTERNATIVE ENERGY SOURCES INTO A SINGLE ELECTRIC NETWORK

Ilhomjon Qodirov

Authors

 

Ismoilov I.I. – Senior Lecturer, Department of Electrical Engineering and Automation, Polytechnic institute of the Tajik Technical University, Khujand,Republic of Tajikistan, ismoiljon.0057@mail.ru

 

Annotation

 

  The article discusses ways to synchronize alternative energy sources into a single electrical network. It is noted that such a single hybrid system with autonomous renewable energy sources refers to a complex dynamic system. The author proceeds from the fact that one of the conditions for ensuring the operation of such systems is the need to equalize the schedule of electrical loads in order to rationally use energy resources. For this, the method of forecasting and analyzing statistical random variables is used. An indicator of the quality of electricity in hybrid power supply systems is the smooth connection of autonomous energy sources to a single operating network and the stabilization of the output electrical parameters of generators. When connecting autonomous energy sources to the network, a sharp increase in voltage, an increase in the frequency of the current, a non-symmetry of the sinusoidal current and sharp phase shifts occurs. Some problems of the operation of a hybrid unified electrical network with autonomous renewable energy sources have been identified; mini hydroelectric power plants and wind power plants are considered as the latter. To solve the problems of system synchronization, a universal network frequency analysis scheme was modeled using a logic calculator. The frequency analysis scheme allows you to measure the level of frequency fluctuations, which is necessary for synchronizing energy sources into a single electrical network.

 

Key words

 

power supply, synchronization, hybrid system, renewable energy sources, frequency, output voltage, logic element

 

References

 

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Publication date

2023-10-27