PLL Structures for Utility Connected Systems under Distorted Utility Conditions
Throughout the phase angle of the grid voltage, a reference signal is generated to synchronize the operating condition of the renewable energy production systems with the utility grid. This paper presents quantified analyses and comparisons of the main PLL techniques based on different structures for ...
Phase-locked loop for grid-connected power electronics converters Przeglad Elektrotechniczny (2010) N.R.N. Ama et al. Phase-locked loop based on selective harmonics elimination for utility applications IEEE Trans. Power Electr. (2013) There are more references available in the full text version of...
D-estimation method (DEM) is a single-phase synchronization system, which includes a prefilter, a postfilter, an estimate producer, and a frequency feedback (FFB) loop for adapting the prefilter and postfilter to frequency changes. The DEM has a completely different structure compared to phase...
single-phase NE of the most important aspects to consider in the PLL for each phase of the system [12], [13], allowing the estima- Ocontrol of grid-connected power converters is the proper tion of frequency and in-phase and quadrature-phase waveforms synchronization with the utility voltages...
controlofgrid-connectedpowerconvertersistheproper synchronizationwiththeutilityvoltages.Specifically,the detectionofthepositive-sequencevoltagecomponentatfun- damentalfrequencyisessentialforthecontrolofdistributed generationandstoragesystems,flexibleactransmissionsys- ...
The integration of distributed energy resources (DERs) in modern power systems has substantially changed the local control capabilities of the grid since the majority of DERs are connected through a controlled dc/ac inverter interface. Such long-distance located DER installations, usually represented by...
By using energy management systems targeting the minimization of power exchange with the utility grid, the owner of such hybrid systems becomes a prosumer. The number of electrical vehicles (EV) is also increasing and home chargers as well as public charging points of 300–500 kW have been ...