Short Description:
The low-voltage hybrid active dynamic reactive power compensation device is installed in low-voltage distribution systems to improve the voltage quality of low-voltage distribution, enhance the operational management level of reactive power compensation, and better serve power customers. It is an upgraded and extended low-voltage active hybrid dynamic reactive power compensation device based on the original low-voltage automatic reactive power compensation device.
Product Overview:
The low-voltage hybrid active dynamic reactive power compensation device is installed in the low-voltage power distribution system to improve the voltage quality of low-voltage power distribution, improve the operation and management level of reactive power compensation, and better serve power customers.
The composition and working principle of KRSVGC
Composition: HYSVGC system composition = controller (ICMS) SVG module General LCICMS integrated control and monitoring system
Set the working mode of LC and SVG and related parameters
Real-time display of power information, data before and after compensation, waveform graph, control and monitoring of SVG LC working status
It has 18 IO ports, which can flexibly realize the combination mode of different SVG LCs
SVG module
Quickly respond to the reactive power change of the system, and compensate the reactive power of LC over- or under-compensated to 0.99
Realize stepless switching and compensate for rapid changes in reactive work
General LC
Compensate for most of the stable and less variable reactive power of the load
The working principle 2 solves the discontinuity caused by the SC packet switching through the continuous output of the reactive power of the SVG module, so as to achieve the effect of dynamic continuous compensation.
Flexible application
By combining any power component (SVG module or LC) in the HYSVGC scheme,
The performance adjustment of the HYSVGC scheme can be realized: the compensation range of HYSVGC is from -1~1.
Take 300kvar compensation capacity as an example:
The compensation effect is good
100、200ms:
If the reactive power of the load suddenly increases, the LC will not have time to act, and the SVG will respond in real time to compensate for the reactive power of the system.
200~500ms:
LC responds to input compensation, and SVG will reduce the compensation capacity in real time.
900、1000ms:
When the reactive power of the load suddenly decreases, the LC does not have time to cut off the input capacitor, and the SVG will send out a reverse compensated reactive power in real time to compensate for the capacity of the LC overcompensated.
1000ms~:
LC cuts out the excess compensation capacity, and SVG tracks the reactive power changes of the system in real time to eliminate the remaining reactive power in the system.