Static VAR Compensator

At the medium voltage level, one common of reactive power compensation is Static Var Compensators (SVCs). SVCs are typically installed in electrical power systems to regulate the voltage and compensate for reactive power fluctuations. They consist of various components such as thyristor-controlled reactors (TCRs) and thyristor-switched capacitors (TSCs) that can quickly adjust the reactive power output to maintain voltage stability.

SVCs work by dynamically varying the reactive power injected into the system. When the system voltage drops, the SVC injects reactive power to raise the voltage level. Conversely, when the system voltage rises, the SVC absorbs reactive power to decrease the voltage. This continuous adjustment helps to stabilize the system voltage within an acceptable range.

SVCs are preferred for medium voltage applications because they can provide fast and precise control of reactive power, helping to maintain voltage stability and mitigate voltage fluctuations. They are commonly used in industrial plants, electrical substations, and other medium voltage applications where reactive power compensation is required.

Medium Voltage Static Var Genertor(Statcom)

The function of Static VAR Generator(SVG) at medium voltage level is to reactive power compensation. Reactive power is required in alternating current (AC) power systems to support the operation of inductive loads such as motors and transformers. Reactive power compensation helps to maintain voltage stability, improve power factor, and reduce transmission and distribution losses.

An SVG serves as a dynamic reactive power compensator that can quickly inject or absorb reactive power into the system. It operates by continuously varying its reactive power output to regulate the voltage at the point of connection. By injecting or absorbing reactive power as needed, the SVG can help maintain the system voltage within acceptable limits.

The SVG achieves reactive power compensation through the use of power electronic devices, such as thyristors or insulated-gate bipolar transistors (IGBTs). These devices enable precise control over the reactive power flow, allowing the SVG to respond quickly to changes in the system conditions.

In summary, the main function of an SVG at medium voltage level is to provide dynamic reactive power compensation, helping to stabilize the voltage and improve the overall performance of the power system.