The full form of VSC is Voltage Source Converter.
Voltage Source Converters (VSC) Explained
Voltage Source Converters (VSC) are a type of self-commutated converter used to connect HVAC (High Voltage Alternating Current) and HVDC (High Voltage Direct Current) systems. These converters utilize devices like IGBTs (Insulated Gate Bipolar Transistors) which are suitable for high-power electronic applications.
Key Characteristics of VSCs
- Self-Commutation: VSCs can generate AC voltages without relying on an existing AC system, making them highly versatile. This capability of self-commutation allows them to independently control active and reactive power.
- High Power Applications: They're used in applications requiring high power, making them suitable for connecting different power grids.
- Use of IGBTs: They often incorporate IGBTs, which are semiconductor devices that can handle high voltages and currents, enabling efficient power conversion.
Applications of VSCs
- HVDC Transmission: VSCs play a crucial role in HVDC transmission systems, allowing for efficient and controllable transfer of electricity over long distances.
- STATCOM: VSCs are also used in Static Synchronous Compensators (STATCOMs) for reactive power compensation and voltage stability.
- FACTS Devices: They form the core of many Flexible AC Transmission Systems (FACTS) devices, which enhance the controllability and stability of AC power grids.
