A Voltage Source Converter (VSC) reactor is used in conjunction with Voltage Source Converter based technologies, such as Voltage Source Converter High Voltage Direct Current (VSC-HVDC) systems or VSC-based Flexible Alternating Current Transmission Systems (FACTS say STATCOM). VSCs are power electronics devices that can control the magnitude and phase of the voltage at their output terminals, making them useful for various applications in power systems.
Reactors > Facts/ HVDC
VSC Reactors
In the context of VSC-based systems, reactors are often employed to address specific issues & improve the overall performance of the system. Here are some key points regarding VSC reactors:
- Filtering and Harmonic Mitigation: VSCs can introduce harmonics into the power system, especially during the conversion process. Reactors are used to filter out these harmonics and mitigate their impact on the power quality.
- DC Side Reactors in VSC-HVDC Systems: In VSC-HVDC systems, reactors are sometimes installed on the DC side of the converter to limit the rate of change of current (di/dt) and help control the DC voltage. These reactors contribute to the stabilization of the HVDC link.
- Fault Current Limiting: Reactors can be used in VSC-based systems to limit fault currents and protect the converters and associated equipment during short circuits or other faults.
- Stability Enhancement: Reactors can improve the stability and transient response of VSC-based systems by introducing damping effects and reducing the impact of rapid changes in current.
- Voltage Control: Reactors can play a role in voltage control on both AC and DC sides of the VSC. They help regulate voltage levels and maintain system stability.
The specific design and purpose of VSC reactors may vary based on the application and system requirements. Engineers consider factors such as the type of VSC technology, the characteristics of the connected power system, and the desired performance criteria when selecting and implementing reactors in VSC-based installations.
