SVG adopts a modular design concept, which can smoothly adjust reactive power, compensate for inductive and capacitive loads, and achieve a compensation effect of 0.99 levels.

2. SVG full response time less than 5ms, dynamic response time less than 50 μ s. Especially suitable for situations with rapid load changes.

3. There is no resonance amplification phenomenon in SVG; And SVG is an active compensation device composed of IGBT, which avoids resonance phenomenon from the mechanism and greatly improves safety.

4. SVG can dynamically bi-directional (-1 to 1) continuously adjust reactive power, that is, continuously output reactive power from rated inductive condition to rated capacitive condition, and can form continuous compensation within any range when combined with fixed capacitors.

5. SVG adopts modular design and cabinet installation, eliminating the need for a large number of reactors and capacitors as energy storage components, resulting in low engineering design and installation workload.

6. SVG adopts an active compensation circuit, and the compensation capacity is minimally affected by the system voltage. When the system voltage decreases, it can also output reactive current similar to the rated working condition.

7. SVG itself has minimal loss and basically does not require maintenance, and there is no resonance overvoltage problem. The design has a long lifespan.

8. SVG compensation capacity refers to the installation capacity, which can achieve the same compensation effect. FST-SVG capacity can be 20% -30% smaller than SVC capacity.

Traditional compensation device

1. Traditional compensation devices are composed of discrete components that can be freely assembled, with capacitors grouped and switched on. The reactive power output capacity is stepped, and the compensation capacity cannot be continuously adjusted, resulting in high inrush current and significant impact on the power grid during switching.

2. Traditional compensation devices have a slow switching speed and cannot quickly track reactive power changes.

3. Traditional compensation devices use multiple sets of FC (reactors matched with capacitors) as the main means of reactive power compensation, which is prone to resonance amplification and leads to safety accidents.

4. Traditional compensation devices use power capacitors to provide reactive power, which can only compensate for inductive loads. When the system exhibits capacitance or is in a state of repeated changes in capacitance and inductance, the compensation effect is lost.

5. Traditional compensation devices require a large number of capacitors and reactors as energy storage components, which occupy a large space and are inconvenient to install and connect.

6. Traditional compensation devices rely on capacitors to provide capacitive reactive power. As the output reactive current is directly proportional to the grid voltage, if the grid voltage is low, the output reactive current will also decrease, resulting in a decrease in compensation capacity, making it difficult to provide sufficient compensation.

7. Traditional compensation devices have frequent switching of compensation, and the lifespan of power capacitors is greatly affected by harmonics and temperature, requiring frequent maintenance.

8. In order to achieve better compensation effects, traditional compensation devices usually require the installation capacity to be greater than the compensation capacity.