ZN300A active filter dynamic reactive power compensator is mainly composed of the main power element, filter inductor, DSP control panel and data sampling device. (Gate Bipolar Transistor) (Insulated IGBT PWM) is used to control the power electronic devices, and the main power circuit is controlled by the (Width Modulation Pulse). When the DSP control board data sampling circuit real-time acquisition to the distribution system of the distorted current (voltage), remove the fundamental part, and the remaining part of the reverse, through a PWM input terminal for DSP control board of the PWM drive signal of PWM drive signal after photoelectric isolation chip drive main power output circuit inverting current injection into the grid, to achieve the function of harmonic filtering.
In addition, the APF-DSTATCOM can also provide advanced or delayed reactive current, which is used to improve the power factor of power grid and realize dynamic reactive power compensation.
application area
Petrochemical, automobile manufacturing, metallurgy, mining, paper, electronics, telecommunications, building, water treatment, etc..
main features
N at the same time fast dynamic filtering of power distribution system 60 ~ 2 times the harmonic currents;
N continuous absorption or the issue of reactive power, so that the distribution system to maintain a constant power factor;
N reactive current output can be in a very large range of voltage change is constant, the voltage is low, still can provide a strong reactive power support, and can be from the sensitivity to the full range of continuous adjustment;
N not only can compensate three-phase unbalance, negative sequence current compensation in the distribution system, reduce line loss;
N to suppress the voltage flicker and the voltage distribution system in encountered heavy load starting and stopping or encounter failure when will transient voltage flicker, drop, instantaneous power interruption, the duration is very short, only tens to hundreds of milliseconds. The device can effectively restrain the flicker, drop and instantaneous power supply interruption of the power network voltage;
N has an adaptive function, which has a fast response to the compensation object. It is not easy to resonate with the power distribution system, and can track the change of the frequency of the power grid, so the compensation performance is not affected by the change of the power grid frequency;
N can instantly provide a certain active power, and compensate the voltage sag and flicker of the distribution system;
N device can automatically run after installation, do not require personnel operation;
N Chinese graphics LCD display, man-machine interface is clear and friendly;
With perfect online operation condition monitoring function.