Inspec keywords: invertors; electric current control; power grids; stability; power system harmonics; electric impedance; feedforward; power system control; feedback

Other keywords: feedback-based AD control; grid feedforward method; grid conditions; grid-connected LCL-filtered inverter; resonance suppress; system design recommendation; repetitive control methods; extrapositive feedback path; grid impedance value challenges system stability; weak grid case; current control evaluations; stability criterion; switching harmonics

Subjects: Power system control; Control of electric power systems; Power supply quality and harmonics; Stability in control theory; Power convertors and power supplies to apparatus; Current control