Aiming at the problems of flicker and fluctuation of power grid voltage, three-phase unbalance, harmonics and so on, solutions based on passive filter (FC), static reactive compensator (SVC), static reactive generator (SVG), active power filter (APF), dynamic voltage restorer (DVR) and other technologies are adopted.Reactive power can be adjusted to support grid voltage, eliminate harmonic pollution, compensate load imbalance current, etc., to achieve comprehensive power quality control.
In the field of intelligent medium and low voltage AC and DC distribution network, adopting the system solution based on power electronic transformer (PET) as the hub can realize AC and DC equipment access, energy management, power flow scheduling, fault isolation, distributed power supply or multiple grid connection networking, and improve the use efficiency of electric energy and the efficient consumption of distributed new energy.
The modular design of power electronic equipment is easy to maintain, with excellent performance such as power grid fault crossing, resonance suppression, multi-machine parallel coordinated operation.
With the ability of system research and complete sets of design, we can provide system overall solutions including system scheme design, equipment design and production, testing, system debugging, operation and maintenance according to customer needs.
Main technical parameters:
Rated voltage: covers all voltage levels;
Rated capacity: customized according to customer requirements.
Typical engineering cases:
Ordos 400V/300kVar APF
Hunan Yiyang 500kV substation ±120MVar SVC line melting ice
Sichuan Wanxian 500kV substation ±180MVar SVC
Shagang Electric arc Furnace ±50MVar SVC
Qinghai "Frontrunner" photovoltaic 4 330kV and 10 110kV substation equipment general contract project (including 40 sets of SVG)
Ukraine Nikopol photovoltaic power station 4 sets of 35kV/11MVar SVG and system resonance solution
Harmonic analysis of Lushi Asynchronous network flexible DC transmission project
Demonstration application of four-port power electronic transformer in Suzhou Tongli Comprehensive Energy Demonstration Center
