This paper deals with the output voltage tracking control problem of three-phase inverters with multiple disturbances (including parametric perturbations of filter, abrupt disturbances caused by load switching, and harmonic disturbances brought by unbalanced loads and nonlinear loads).
Different from the ideal model (3), a practical three-phase inverter system faces multiple disturbances, including parametric perturbations of the L C filter, abrupt disturbances caused by load switching, and harmonic disturbances brought by unbalanced loads and nonlinear loads.
To strengthen the anti-disturbance capability of three-phase inverter systems, an efficient way is to use feedforward disturbances compensations (Bang et al., 2010, Kim et al., 2021, Li et al., 2014, Wang et al., 2021, Zhao and Guo, 2015). In practice, the disturbances of three-phase inverter systems are often hard to be measured directly.
Abstract: The integration of photovoltaic (PV) systems with the grid connected four-leg voltage source inverters (4LVSI) offers more efficient power conversion and distribution.
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The complete control structure for the grid-connected solar inverter includes inner current loops using PI controllers for the dq-axis currents and the improved LADRC for the DC …
Learn MoreThe rapid integration of grid-following inverter-based resources (GFL-IBRs) has increased the importance of their dynamic behaviour during disturbances. Simultaneously, …
Learn MoreThe integration of photovoltaic (PV) systems with the grid connected four-leg voltage source inverters (4LVSI) offers more efficient power conversion and distribution. …
Learn MoreThen, a similar test for parallel operation of inverters was performed. Based on these experimental results, a novel analysis of possible resonances between parallelly …
Learn MoreThe rapid integration of grid-following inverter-based resources (GFL-IBRs) has increased the importance of their dynamic behaviour during disturbances. Simultaneously, there are increasing …
Learn MoreIn the context of Photovoltaic (PV) installations, power quality is a largely discussed topic and reports on several disturbance events related to PV inverters exist. …
Learn MoreThis paper deals with the output voltage tracking control problem of three-phase inverters with multiple disturbances (including parametric perturbations of filter, abrupt …
Learn MoreDownload Background Every PV plant will have unique challenges. In this Solis Seminar episode, we will focus on a common fault in photovoltaic systems: DC Input …
Learn MoreSolar inverters are exposed to a wide range of electrical disturbances that often go unnoticed—until they cause serious consequences. These are not always visible in SCADA …
Learn MoreIs a modified ladrc-based DC-link voltage control strategy suitable for disturbed PV Grid-connected systems? In this paper,a modified LADRC-based dc-link voltage control strategy is …
Learn MoreCalifornia Rule 21 Mandates advanced inverter functions for PV >10kW. Germany''s LVRT Solar plants must support grid during voltage dips. Texas PV Plant 200MW …
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