Mitigating climate change requires a transition away from fossil fuels towards renewable energy. As a result, power generation becomes more volatile and options for microgrids and islanded power-grid operation are bei...
详细信息
In many intelligent technical assistance systems (especially diagnostics), the sound classification is a significant and useful input for intelligent diagnostics. A high performance classification of the heterogeneous...
详细信息
We train Transformer-based neural machine translation models for Hungarian-English and English-Hungarian using the Hunglish2 corpus. Our best models achieve a BLEU score of 40.0 on Hungarian-English and 33.4 on Englis...
详细信息
Mixed reality and digital twins offer two prominent technological approaches that have the potential to revolutionize chemical industries. However, there are some hurdles that need to be overcome before these technolo...
详细信息
This paper proposes a sliding mode control strategy for balancing the State of Charge (SoC) in lithium-ion battery packs. By thoroughly analyzing the battery balancing circuit topology, a bidirectional Cuk circuit bal...
详细信息
ISBN:
(数字)9798331542047
ISBN:
(纸本)9798331542054
This paper proposes a sliding mode control strategy for balancing the State of Charge (SoC) in lithium-ion battery packs. By thoroughly analyzing the battery balancing circuit topology, a bidirectional Cuk circuit balancing topology for a series-connected battery pack is established, and its mathematical model is developed. Utilizing sliding mode control technology, a balancing strategy is designed to equalize the SoC of all cells in a battery pack composed of multiple series-connected battery cells. The effectiveness of the proposed method is verified through experiments, demonstrating that the developed battery balancing system can successfully balance the SoC of each cell in the battery pack.
Design of a novel varifocal freeform optics with aspheric surface profiles to reduce aberration effects. Its focal length will be tuned by rotating one of two helically formed lens bodies around the optical axis. ...
详细信息
We study a typical intermediary task to Machine Translation, the alignment of NPs in the bitext. After arguing that the task remains relevant even in an end-to-end paradigm, we present simple, dictionary- and word vec...
详细信息
Design and manufacture of a novel varifocal freeform optics by means of high-resolution 3D printing are presented. Tuning of its focal length is achieved by mutually rotating two lens bodies around the optical axis. &...
详细信息
Multi-terminal DC Microgrids have great potential for integrating Renewable Energy Sources, Storage Technologies, and modern loads more efficiently because most of them operate on DC power. Besides the reduced convers...
Multi-terminal DC Microgrids have great potential for integrating Renewable Energy Sources, Storage Technologies, and modern loads more efficiently because most of them operate on DC power. Besides the reduced conversion steps between the components, which avoids considerable losses, multi-terminal DC MicroGrids offer advantages due to the lack of skin effects and reactive power. Nevertheless, stabilizing such a DC network by controlling its power converters is a very challenging task in view of the fact that the classical solution, to use PI controllers based on linearized models, may lead to stable behavior only in a small region around the respective equilibrium point. In this paper, we present a real-time PHIL implementation of a novel nonlinear control scheme for a multi-terminal DC MicroGrid. The amount of needed capacitors is reduced significantly concerning previous approaches. The proposed nonlinear controller is compared with a cascaded PI controller based on a linearized model, the so-called vector control. Both approaches, nonlinear and linear, are implemented and validated on a real PHIL multi-terminal DC MicroGrid consisting of a battery, a PV, and two load ports. The real-time experimental results of PI-based and nonlinear control-based DC Microgrids are then compared. They show that the nonlinear control allows to better deal with disturbances and nonlinearities of the system, for several points of operation without re-tuning.
To assist in the development of machine learning methods for automated classification of spectroscopic data, we have generated a universal synthetic dataset that can be used for model validation. This dataset contains...
详细信息
暂无评论