This study centers on the substation application scenario and offers an optimized solution for the low-power LEACH protocol used in substation WAPI. The algorithm put forward herein comprehensively considers the curre...
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This paper introduces an innovative approach to address voltage fluctuations in solar-based grid integration by implementing an adaptive PI control-based Dynamic Voltage Restorer (DVR). This DVR is engineered to count...
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This paper introduces a novel Model Predictive control (MPC) scheme for a three-phase Neutral Point Clamped (NPC) rectifier, designed for versatile applications in both vehicle-to-grid (V2G) and grid-to-vehicle (G2V) ...
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With the high penetration of various distributed energy sources and DC loads in modern power systems, multi-port converters have received extensive attention due to their bidirectional conversion and port isolation fu...
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ISBN:
(纸本)9798350377477;9798350377460
With the high penetration of various distributed energy sources and DC loads in modern power systems, multi-port converters have received extensive attention due to their bidirectional conversion and port isolation functions. Among them, the power converter with a high-frequency-bus structure based on the multi-active bridge (MAB) circuit has apparent advantages in the application of AC / DC hybrid systems due to its few transformation links and high power density. In practical applications, the blocking removal caused by sub-module open-circuit faults or other types of faults will cause transient impacts on non-fault modules, which in turn will cause system security problems. In order to ensure the stable operation of the power converter, this paper proposes an integral compensation fault ride-through strategy based on decentralized control. Its essence is to control the adaptive adjustment process of the sub-module by compensating the shift angle. The simulation results show that this strategy can suppress the transient impact of voltage and current after open-circuit faults to ensure the safe operation of non-fault ports.
Voice User Interfaces (VUIs) are becoming increasingly valuable in industrial applications, offering hands-free control in complex environments. However, developing and validating VUIs for such applications faces chal...
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This research paper explores the development and efficiency of a photovoltaic bottle equipped with transparent solar cells, a USB charging port, and a built-in filtration system designed to harness solar energy in a c...
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In recent years, indoor localization has evolved into a pivotal feature across a spectrum of end-user applications. Emerging as a promising solution in the realm of indoor localization is Ultra-Wideband (UWB) technolo...
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ISBN:
(纸本)9798350309461
In recent years, indoor localization has evolved into a pivotal feature across a spectrum of end-user applications. Emerging as a promising solution in the realm of indoor localization is Ultra-Wideband (UWB) technology. UWB's potential performance has garnered attention, prompting the establishment of standardized protocols by various organizations. It's worth noting that the ieee 802.15.4 standard played a pivotal role in initiating the standardization of Ultra-Wideband (UWB) technology. This standard provides detailed specifications for both the Media Access control (MAC) and physical layers of UWB communication. In this paper, we delve into the core principles of UWB communication. We begin by offering an insight into the MAC layer and the physical layer. It's important to note that the specifics of the multiple access scheme and localization techniques at the MAC layer are primarily proprietary. Following that, we provide an overview of UWB positioning algorithms. Next, we implement UWB positioning functionality based on the UWB communication process and conduct error analysis. Finally, we discuss the relationship between positioning accuracy and the distance between devices. The results indicate that UWB complies with indoor positioning accuracy.
This paper proposes a novel adaptive iterative learning control (AILC) strategy for position tracking of permanent magnet synchronous motor (PMSM) servo systems. The primary objective of this paper is to achieve preci...
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ISBN:
(纸本)9798350373707;9798350373691
This paper proposes a novel adaptive iterative learning control (AILC) strategy for position tracking of permanent magnet synchronous motor (PMSM) servo systems. The primary objective of this paper is to achieve precise position tracking control in the presence of both the load disturbances and the friction forces. The designed control scheme compensates for the load disturbance indirectly by adjusting the desired control input in the controller. Moreover, an adaptive parametric update law is employed to estimate the unknown parameters. The convergence properties of the proposed control algorithms are analyzed using the composite energy function (CEF) methodology. Additionally, the effectiveness of the proposed method for the PMSM system is validated through simulations conducted in MATLAB.
The demand for efficient and precise control of Brushless Direct Current (BLDC) motors has grown significantly in various industrial applications. Proportional-Integral-Derivative (PID) controllers are ideally employe...
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This paper focuses on the research and the design of coupling coils of an underwater wireless charging station system. The system must adapt to the underwater environment and address alignment issues caused by seawate...
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ISBN:
(纸本)9798350349146;9798350349139
This paper focuses on the research and the design of coupling coils of an underwater wireless charging station system. The system must adapt to the underwater environment and address alignment issues caused by seawater as the medium. A detailed investigation of coil coupling design is conducted, considering the unique underwater dynamic environment. An automated coil evaluation platform is established by integrating COMSOL Multiphysics (R) and Matlab software. The Exhaustive Search Method is used to optimize the coil inner radius design to achieve high misalignment tolerance. Finally, the optimized coils are applied in a H-bridge series-series resonant converter and compared to a control group of coils. The optimized coils show superior misalignment tolerance, with minimal coupling coefficient variation (i.e. 0.013) and an average coupling level of 0.232. In contrast, the control group exhibits a higher coupling coefficient variation (i.e. 0.026) and an average coupling level of 0.18 under the same conditions.
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