PRODUCT OVERVIEW

Ideal power supply should be a sinusoidal waveform with a single constant frequency and specified amplitude. When a sinusoidal voltage is applied to a non-linear load, the current will be distorted into a non-sinusoidal waveform, which leads to a voltage drop in the grid impedance, making the voltage waveform turn to be non-sinusoidal as well. Applying Fourier series decomposition to non-sinusoidal waveforms, in which the component with the same frequency as the industrial frequency is called the fundamental wave, and the component with a frequency greater than the industrial frequency is called the harmonic wave.

KLD-BMS2000 series high-performance harmonic protector eliminates harmonics at the power side through digital logics and detects the current waveform generated by non-linear loads in the power grid in real time. It decomposes and reverses the harmonic wave, and then injects the reversed current into the power grid by triggering IGBT inverter to filter out the harmonics. It is mainly applied to the control of harmonics at the power side to protect the important power equipment of customers.