A series transformer couples a power converter to an electrical line, enabling rapid injection or withdrawal of energy to correct grid frequency deviations.
A unified power flow controller uses three converters to manage double-circuit transmission lines.
A STATCOM controller balances arm capacitor voltages using zero sequence reference signal injection derived from symmetrical component decomposition.
A compact pole-mounted static synchronous compensator uses a cascaded H-bridge converter to deliver reactive power directly to distribution lines.
A battery energy storage system controller executes parallel algorithms to stabilize power output and manage peak load distribution.