Static Synchronous Compensator (STATCOM) Studies
​
What is a Static Synchronous Compensator (STATCOM)?
A STATCOM is a shunt-connected static synchronous generator designed to provide capacitive or inductive reactive power compensation. It uses voltage-sourced converter (VSC) technology for precise control of output current, independent of system voltage. Its primary functions include reactive power support, voltage regulation, and improving transient and dynamic stability.
​
Importance of Static Synchronous Compensator (STATCOM)
STATCOM systems are critical for:
-
Reactive Power Modes: Operating in fixed reactive power or voltage control modes.
-
Voltage Regulation: Controlling the fundamental positive sequence voltage in steady-state and dynamic conditions.
-
Phase Voltage Control: Managing positive and negative sequence components.
-
Coordinated VAR Control: Optimizing the use of dynamic versus steady-state reactive power sources.
-
Power Oscillation Damping: Enhancing system stability by damping oscillations (0.2–2.0 Hz).
-
Response Gain Control: Regulating STATCOM response to prevent excessive overshoot or oscillations.
​
How Do We Perform STATCOM Studies?
-
Data Collection: Collect system details such as single-line diagrams (SLD), STATCOM specifications, and study-specific data (e.g., dynamics, harmonics, stability, EMT, insulation coordination).
-
System Modeling: Develop accurate models of the STATCOM and power system using tools like ETAP, PSS®E, or PSCAD/EMTDC.
-
Simulation Scenarios: Create and simulate scenarios based on client requirements and system needs.
-
Reporting: Deliver a detailed technical report with analysis, findings, and recommendations.
​
Applicable Standards for STATCOM Studies
-
IEEE 1052-2018: Guide for Specification of Transmission Static Synchronous Compensator Systems.
-
IEC 62927: Electrical Testing of Voltage-Sourced Converter (VSC) Valves for STATCOM.