Zobrazeno 1 - 10
of 1 033
pro vyhledávání: '"grid-connected converter"'
Publikováno v:
International Journal of Electrical Power & Energy Systems, Vol 162, Iss , Pp 110318- (2024)
Grid-connected converters (GCCs) exhibit diverse stability characteristics at different operating points. However, traditional stability analysis methods usually study the stability of GCC at a specific operating point. To analyze the stability under
Externí odkaz:
https://doaj.org/article/f71a7c1bb0af46b0954fd979bfed541f
Publikováno v:
International Journal of Electrical Power & Energy Systems, Vol 161, Iss , Pp 110224- (2024)
DC microgrids, considered building blocks of smart grid technologies, are subjected to small-signal instability due to the extensive introduction of power electronics devices. Therefore, in this paper, a sequence Virtual Filter (VF) controller, which
Externí odkaz:
https://doaj.org/article/08136d01df5b4ca2a238db9e6f160082
Autor:
Fangzhou Zhao, Tianhua Zhu, Lennart Harnefors, Bo Fan, Heng Wu, Zichao Zhou, Yin Sun, Xiongfei Wang
Publikováno v:
IEEE Open Journal of Power Electronics, Vol 5, Pp 186-200 (2024)
This paper derives closed-form solutions for grid-forming converters with power synchronization control (PSC) by subtly simplifying and factorizing the complex closed-loop models. The solutions can offer clear analytical insights into control-loop in
Externí odkaz:
https://doaj.org/article/7e9424ed32854564a2ac6cd253f8002e
Publikováno v:
Energies, Vol 17, Iss 21, p 5323 (2024)
Cold energy generation is an important part of liquefied natural gas (LNG) cold energy cascade utilization, and existing studies lack a specific descriptive model for LNG cold energy transmission to the AC subgrid. Therefore, this paper proposes a de
Externí odkaz:
https://doaj.org/article/3ed92938e64d474a9a3332fd0778e49e
Publikováno v:
IET Renewable Power Generation, Vol 17, Iss 13, Pp 3195-3208 (2023)
Abstract For bidirectional grid‐connected DC/AC converters, the power flow variation substantially alters the system stability, and especially severs under heavy load. Towards this problem, this paper proposes a novel impedance uniform control meth
Externí odkaz:
https://doaj.org/article/188d320d17944b159e0385813091b918
Publikováno v:
Energies, Vol 17, Iss 18, p 4531 (2024)
Aiming at the problems of low equipment utilization and the high-capacity requirements of existing arc-suppression devices, a multi-functional reactive power compensation device with the capability of grounding fault regulation (MF-RPCD) is proposed.
Externí odkaz:
https://doaj.org/article/a6fe2ca9c670460daf5762160c1e9196
Publikováno v:
Energies, Vol 17, Iss 14, p 3438 (2024)
Given the problems that the phase-locked loop frequency coupling effect (PLL-FCE) in a weak grid reduces the quality of the output current waveform and brings challenges to maintaining a steady running of the grid-connected converter (GCC), this pape
Externí odkaz:
https://doaj.org/article/45913304e5164e26a7b2dc111f941be1
Publikováno v:
Power Electronic Devices and Components, Vol 6, Iss , Pp 100044- (2023)
The grid-connected converters are becoming an important role in modern power grid. The grid codes have been proposed for the operation of grid-connected converters. The low voltage ride-through, namely one of the grid codes, is the operation of grid-
Externí odkaz:
https://doaj.org/article/6e70ba276c724705b8b63ac1e2690f83
Publikováno v:
Archives of Electrical Engineering, Vol vol. 72, Iss No 1, Pp 23-42 (2023)
The disadvantages of the conventional model predictive current control method for the grid-connected converter (GCC) with an inductance-capacitance-inductance (LCL) filter are a large amount of calculation and poor parameter robustness. Once paramete
Externí odkaz:
https://doaj.org/article/4fc66da4796740e3a426bbb712978c47
Publikováno v:
IEEE Open Journal of Power Electronics, Vol 4, Pp 415-426 (2023)
240$^\circ$-Clamped Space Vector PWM (240CPWM) is a lowest switching loss PWM method in cascaded architecture of DC-DC stage followed by DC-AC stage that reduces the switching loss by 85% in the DC-AC stage at unity power factor as compared to conven
Externí odkaz:
https://doaj.org/article/090f0985e0e54f3a8a59ec3128c66ba8