Such devices include the thyristor-controlled series capacitor (TCSC); thyristor-controlled phase angle regulator (TCPAR); static condenser (STATCON); and the unified power flow controller (UPFC).
Series controllers such as Thyristor Controlled Series Capacitor (TCSC), Thyristor Controlled Phase Angle Regulators (TCPAR or TCPST), and Static Synchronous Series Compensator (SsSc).