Article
Static Synchronous Series Compensator Controller Using the Sen Transformer Control Strategy
In an ac transmission line, it is possible to control the active and reactive power transfer independently, by adding series compensation voltage, in both magnitude and phase angle, to the line. A transmission line is connected in series to the Static Synchronous Series Compensator and a solid-state voltage source inverter with associated transformer. In line series, a SSSC imposes a variable amplitude nearly sinusoidal voltage. This injected voltage creates seriatim inductive or capacitive reactance with the line as it is approximately 90° from the line current. The modulated reactance produces this (simulated) varying reactance which modulates the electric power carried through the transmission line. This focus on preliminary research for controller design motivated this study to attempt further development of the SSSC and VSC models.
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