HARMONİCS

Global Experience, Local Application

High frequency current or voltage components that are formed in multiples of fundamental frequency by the effect of power electronics equipment that change the amplitude of the network frequency are called harmonics.

About Harmonics



The frequency, which is the basis of alternative energy, is decisive in terms of size. If a voltage source in sine form is applied to a system with semiconductor technology or more generally to non-linear loads, the current response of the system will be in the form of a square wave. The reason why this current waveform is square wave, which should have a sine form and amplitude at the rate of system impedance, is sine waves other than the basic network frequency it contains. These frequencies in the form of multiples of the basic network frequency (50/60 Hz) and in the sinus form are called harmonics. Due to their presence, harmonics cause capacity losses, heat losses, loss of life or malfunctions and disruptive events such as communication errors. In this sense, it is recommended that the harmonic levels that the equipment can tolerate are requested from the relevant producers to provide these values or if complex facilities are established where these values cannot be achieved, it is recommended to refer to the grid standards.
The frequency, which is the basis of alternative energy, is decisive in terms of size. High frequency current or voltage components that are formed in multiples of fundamental frequency by the effect of power electronics equipment that change the amplitude of the network frequency are called harmonics. Due to their presence, harmonics cause capacity losses, heat losses, loss of life or malfunctions and disruptive events such as communication errors. In this sense, it is recommended to request the harmonic levels that the equipment can tolerate from the producers to provide the relevant values or to take the network standards as a basis if complex facilities are established where these values cannot be achieved.