A data-driven probabilistic harmonic power flow approach in power distribution systems with PV generations

Research on harmonic power flow calculation of novel urban distribution network considering the switching power supply harmonic and the correlation of impedance-frequency

“…Currently, in China, there is a strong push towards achieving the "dual-carbon" goals, the transformation of energy consumption structure is continuously deepening, and vigorous development of sustainable energy as a substitute for traditional energy has become one of the effective solutions [9] [10]. Especially in the urban distribution network, due to the large-scale application of electricity, the harmonic problems caused by the power electronic switching power supply and other devices have become one of the performance evaluation indicators of the power grid [10]. The switching power supply is composed of multiple rectifying elements, which achieve the control target formed by the control device through rigid short-circuit or power interruption methods and generate a large number of harmonics.…”

“…The switching power supply is composed of multiple rectifying elements, which achieve the control target formed by the control device through rigid short-circuit or power interruption methods and generate a large number of harmonics. The measured current waveform distortion rate of power electronic devices such as computers, energy-saving lamps, air conditioners, and washing machines using power electronic devices is 100% [10]. From the perspective of harmonic waves, the residential load types are diverse, and the harmonic generation characteristics of various electrical appliances are quite different.…”