A robust islanding detection method with zero-non-detection zone for distribution systems with DG

•The proposed ID method has achieved Zero-NDZ with a reduced detection time.•The ID method meets the requirements established by the IEEE 929-2000 and 1547-2018 standards.•No DG power curtailment or signal injection is required to identify islanding.•The method exhibits high dependability, low cost of implementation and a small degree of computational complexity.