As the proportion of new energy power generation such as wind power and photovoltaics in the power system becomes higher and higher, more dynamic reactive power adjustment and harmonic compensation capabilities are needed on the power grid and power generation side. Based on high-power power electronic conversion products, Wolong Electric timely launches medium- and high-voltage SVG power comprehensive management solutions that meet the characteristics of new energy access.

solution

Utilizing mature power cascade technology, SVG adjusts reactive power and voltage in real time to meet the transmission requirements of the power system; it adopts a modular design, which is easy to install and maintain, and it occupies a small area; it adopts PWM interleaved technology, its own harmonics are extremely low, and it has The harmonic control function can suppress voltage flicker and improve voltage quality. Wolong SVG can realize intelligent two-way linear adjustment of reactive power.

Application scenarios

1. In the green park power supply system, electrical equipment, transformers, and lines will all generate reactive power. Reactive power will cause system losses and reduce system capacity. SVG can dynamically track the system status in real time and adjust the system power factor.

2. In green parks, there are problems such as voltage fluctuation and flicker on the grid-connected side of new energy power generation equipment, harmonic control, and unbalanced three-phase voltage. SVG can respond quickly to solve transient system problems.

3. Equipment in metallurgy, chemical industry, coal, petrochemical and other industries will produce high-order harmonics or characteristic harmonics, and the coexistence of harmonics will lead to problems such as the worsening of harmonic distortion. SVG can dynamically compensate for higher harmonics.

Wolong technical advantages

·Has a postdoctoral workstation and a national enterprise technology center

·The product’s dynamic response is rapid, and the system’s dynamic response time is ≤5ms.

·Has a variety of low-order harmonic and negative sequence compensation capabilities to achieve asymmetric low-voltage ride-through capabilities in the power grid

·Have rich operating performance of high-reliability and high-power power electronic products and advanced process support measures