A synchronizing system for controlling operation of a power conversion assembly of a power generation system comprising a power generator comprising a rotor, a rotor angle position sensor configured to produce a rotor angle position signal, and a stator coupled to an electrical grid, the power conversion assembly comprising an DC-AC line converter coupled to the electrical grid and the stator, an AC-DC rotor converter coupled to the rotor, and a DC link connecting the line converter and the rotor converter, said synchronizing system comprising: a phase locked loop configured to: receive a terminal voltage from a node between the power conversion assembly and electrical grid; generate a PLL phase angle signal; and generate a PLL error signal representative of a difference between a phase angle of the power generation system and a phase angle of the electrical grid; a line angle shift logic circuit configured to: receive the PLL error signal; compare the PLL error signal to a predefined upper threshold and a predefined lower threshold; and generate a PLL shift signal based at least partially on the PLL error signal, the upper threshold and the lower threshold; a first summing junction configured to subtract the rotor angle position signal from the PLL phase angle signal to produce a rotor converter angle reference signal; a second summing junction configured to add the PLL phase angle signal and the PLL shift signal to produce a line converter angle reference signal; and a controller configured to generate a plurality of line converter control signals based on the line converter angle reference signal and transmit the line converter control signals to the power conversion assembly, and configured to generate rotor converter control signals based on the rotor converter angle reference signal and transmit the rotor converter control signals to the power conversion assembly. receive a terminal voltage from a node between the power conversion assembly and electrical grid; generate a PLL phase angle signal; and generate a PLL error signal representative of a difference between a phase angle of the power generation system and a phase angle of the electrical grid; a line angle shift logic circuit configured to: receive the PLL error signal; compare the PLL error signal to a predefined upper threshold and a predefined lower threshold; and generate a PLL shift signal based at least partially on the PLL error signal, the upper threshold and the lower threshold; a first summing junction configured to subtract the rotor angle position signal from the PLL phase angle signal to produce a rotor converter angle reference signal; a second summing junction configured to add the PLL phase angle signal and the PLL shift signal to produce a line converter angle reference signal; and a controller configured to generate a plurality of line converter control signals based on the line converter angle reference signal and transmit the line converter control signals to the power conversion assembly, and configured to generate rotor converter control signals based on the rotor converter angle reference signal and transmit the rotor converter control signals to the power conversion assembly. receive the PLL error signal; compare the PLL error signal to a predefined upper threshold and a predefined lower threshold; and generate a PLL shift signal based at least partially on the PLL error signal, the upper threshold and the lower threshold; a first summing junction configured to subtract the rotor angle position signal from the PLL phase angle signal to produce a rotor converter angle reference signal; a second summing junction configured to add the PLL phase angle signal and the PLL shift signal to produce a line converter angle reference signal; and a controller configured to generate a plurality of line converter control signals based on the line converter angle reference signal and transmit the line converter control signals to the power conversion assembly, and configured to generate rotor converter control signals based on the rotor converter angle reference signal and transmit the rotor converter control signals to the power conversion assembly.