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Questions related from Juan Cabeza
Good morning all. I am developing a Simulink-based microgrid model for my PhD to study dynamic behaviour of BESS-supported grid-forming inverters in islanded microgrids. Would you kindly suggest...
10 February 2024 747 0 View
Good morning all. I see that a grid-forming inverter (GFMI) needs being supported by energy storage since in order to control voltage and frequency, the inverter will exchange power with the grid,...
21 June 2023 5,945 0 View
Good morning, I am trying to simulate a grid-forming inverter in a grid-connected microgrid. The inverter control comprises the nested inner voltage and current control loops, each with a PI...
10 April 2023 6,835 3 View
Good morning all, I am developing with Simulink the model of a microgrid including a grid-forming converter, that is intended to operate both grid-connected and offgrid. When I run the simulation...
06 February 2023 9,648 0 View
I note that virtual damping resistors and virtual impedances are usually considered to solve the problems that may arise due to the dependence of the conventional droop controller performances on...
12 March 2022 7,950 2 View
Dear all, hope you are well at the moment. I am trying to simulate with Simulink-Simscape a low voltage microgrid including one voltage-source converter. This VSC is to operate as grid-supporting...
18 December 2021 3,732 1 View
Dear all, hope you are keeping well at the moment. I am trying to study an islanded microgrid with one grid-forming converter (GFMC) and several grid-feeding converters GFC supplying power to the...
05 February 2021 1,517 3 View
Good morning, I refer to the PV grid-following converter units being controlled in P-Q mode. I just compare them to conventional synchronous generators. These latter are off-loaded when first sync...
15 November 2020 9,638 3 View
Good morning all, acc to what I have learned so far, the achievable output voltage frequencies in a PV inverter with SPWM and SVPWM are similar so it should be their respective performance in...
25 April 2020 2,401 2 View
Good morning, I refer to isolated microgrids e.g rural power systems. In these off-grid systems chances are that the starting of loads involving great in-rush currents can create power unbalances....
02 February 2020 733 4 View
Good morning, regarding synch of power converters to grid I note that the basic approach for PLL is trying to reduce the phase error i.e the difference between the real and estimated phase...
31 December 2019 8,698 5 View
Good afternoon, as far I know phasers always rotate ccw. However I find in specialized literature both cw and ccw scenarios - see attached example. Do applicable standards require a specific 3Ph...
27 July 2019 2,616 1 View
Good afternoon, I have performed a load flow on Simscape tutorial model power_3phseriescomp. I note that after LF source voltage angle is slightly negative – see attachment. My understanding...
10 March 2019 5,992 3 View
Dear all, I need to develop for my PhD Thesys the basic model of an islanded microgrid comprising renewable generation sources and storage systems. Would you kindly to provide me with some advice...
08 July 2018 4,125 3 View
Good morning, I am currently studying the fundamentals of hierarchical control in microgrids. I know the role of current and voltage loops in the overal structure but I am experiencing some...
30 April 2018 7,262 10 View
Hi - I need to work further on VSI and CSI operation modes to better understand the difference between "grid following" and "grid forming" scenarios for converters. I would appreciate that...
12 April 2018 3,186 7 View
Hi - could anybody recommend some paper where this non-linearity of induction motors is studied with some detail? Also regarding the modelling of this type of loads e.g in Matlab. Thanks in advance!
12 April 2018 3,197 1 View
Good morning all, I have just been trying ChatGPT to provide with some technical support for my PhD on grid- forming inverters in MG. I find that while of its responses may be valuable, it has a...
01 January 1970 612 2 View
