A5100320748- Fuel Cells and Related Materials
- Advanced Battery Technologies Research
- Electric and Hybrid Vehicle Technologies
- Energy Load and Power Forecasting
- Fault Detection and Control Systems
- Electric Power System Optimization
- Railway Systems and Energy Efficiency
- Radar Systems and Signal Processing
- Microgrid Control and Optimization
- Power Systems and Renewable Energy
- Electrocatalysts for Energy Conversion
- Industrial Vision Systems and Defect Detection
- Statistical Methods and Bayesian Inference
- Statistical Methods and Inference
- Smart Grid Energy Management
- Hybrid Renewable Energy Systems
- Microwave Imaging and Scattering Analysis
- Advanced Wireless Communication Techniques
- Traffic Prediction and Management Techniques
- Wireless Communication Networks Research
- PAPR reduction in OFDM
- Machine Learning and ELM
- Statistical Methods in Clinical Trials
- Robotic Path Planning Algorithms
- Integrated Energy Systems Optimization
Chongqing University
2024
Xiamen University
2018-2024
Xi’an University of Posts and Telecommunications
2023-2024
Southwest Jiaotong University
2017-2024
Guangdong University of Technology
2023-2024
Tan Kah Kee Innovation Laboratory
2024
Collaborative Innovation Center of Advanced Microstructures
2024
Nanjing University
2024
Collaborative Innovation Center of Chemistry for Energy Materials
2024
Shenyang Jianzhu University
2023
For low energy consumption and operational stability, multimode equivalent consumption, an optimal management control method, is proposed in this paper. This method effectively solves the problem of distribution between primary power-a high-power fuel cell auxiliary power-and a supercapacitor, complex operating conditions. In all four states hybrid electric tram, i.e., traction, coasting, braking, station parking, with highest efficiency obtained through whole system modeling calculation....
For purpose of solving the data-driven failure diagnosis problems proton exchange membrane fuel cell (PEMFC) system, improve test accuracy and shorten training time, a novel method PEMFC systems based on data fusion is proposed, which combines extreme learning machine (ELM) Dempster-Shafer (D-S) evidence theory. The characteristic vector extraction carried out electrical quantities nonelectrical system under four different faults. kernel ELM algorithm online sequential are, respectively,...
In the cause of working out challenge remaining life prediction (RUL) proton exchange membrane fuel cell (PEMFC) under dynamic operating conditions, this article proposes a PEMFC RUL forecast technique based on sparse autoencoder (SAE) and deep neural network (DNN). The method extracts data set from original experimental at intervals periods one hour to realize datum reconstruction. Gaussian-weighted moving average filter is used smooth noisy (voltage current). smoothed filtered power output...
The current density distribution over the catalyst layer was detected using a developed RuO 2 probe.
The widespread application of proton exchange membrane water electrolyzers (PEMWEs) is hampered by insufficient lifetime caused degradation the anode catalyst layer (ACL). Here, an important mechanism has been identified, attributed to poor mechanical stability causing mass transfer channels be blocked ionomers under operating conditions. By using liquid-phase atomic force microscopy, we directly observed that were randomly distributed (RD) in ACL, which occupied due swelling, creeping, and...
For solving the problem of sequence failure diagnosis proton exchange membrane fuel cell (PEMFC) water management subsystem, this paper proposes a PEMFC method time series based on bidirectional long short-term memory (BiLSTM) network and t-distributed stochastic neighbor embedding (t-SNE). This approach adopts normalization strategy to eliminate influence caused by dimensional differences different parameters. The t-SNE is presented decrease dimensionality normalized data estimate intrinsic...
To address the issue of inaccurate power flow calculations in asymmetric coupling system a grid and traction network, this paper proposes dynamic calculation method for “renewable energy–power grid–transportation network” coupled system. First, by utilizing characteristics transformer, nodal admittance matrix is established, which facilitates construction mixed equations transportation network. Next, when analyzing renewable energy, grid, network mountainous areas, it necessary to allocate...
We consider a spectral sharing problem in which statistical (or widely distributed) multiple-input multiple-output (MIMO) radar and an in-band full-duplex (IBFD) multi-user MIMO (MU-MIMO) communications system concurrently operate within the same frequency band. Prior works on joint MIMO-radar-MIMO-communications (MRMC) systems largely focus either colocated radars, half-duplex communications, single-user scenarios, omit practical constraints (clutter, uplink [UL]/downlink [DL] transmit...
In order to reduce the operating cost of hydrogen fuel cell hybrid electric tram, this paper proposes a hierarchical control method, which includes layer and management layer. layer, through three-dimensional efficiency, modeling, geometric solution system (FCS), equivalent fitting circle method is adopted realize optimal allocation among sets multiple cells with different parameters. Meanwhile, in according operation states supercapacitor dynamic energy consumption coefficient proposed...
In this study, Big Data Analytics has been applied to implement smart manufacturing services performed by local commercial laundry Small and Medium Sized Enterprises (SMEs), which, be specific, is called Smart Laundry Services (SLSs). This service first uses traffic big data inputs from the City Traffic monitoring Server abstract patterns develop dynamic optimal scheduling routes for logistic terminals after taking pick-up orders hotel supply managers. On other hand, floor, which isfor fully...
As the fuel cell systems (FCS) are increasingly used in high-power application areas, power coordination method of multistack FCS is attracting ever-growing attention. In order to minimize total energy consumption, this article proposes an optimal for FCS. method, efficiency distribution function entire can be obtained gradually based on consumption model each stack with different parameters. By finding maximum function, analytical solution stack's setpoint obtained. addition, also takes...
The direct-quadrature (DQ) model, mirror-frequency impedance (MFI) and harmonic state-space (HSS) model are three main modeling methods for single-phase power electronic converter systems. These models established under different frameworks: the dq-frame, frame, extended domain frame. purpose of this article is to demonstrate how create a unified framework provide an unambiguous relationship between impedances in these domains. facilitates flexible scalable by making be easily interconnected...
A standard goal of model evaluation and selection is to find a that approximates the truth well while at same time as parsimonious possible. In this paper we emphasize point view models under consideration are almost always false, if viewed realistically, so should analyze adequacy from view. We investigate issue in large samples by looking credibility index, which designed serve one-number summary measure adequacy. define index be maximum sample size those true data generating mechanism...
High-precision and fast relative positioning of a large number mobile sensor nodes (MSNs) is crucial for smart industrial wireless networks (SIWSNs). However, multiple targets simultaneously in three-dimensional (3D) space has been less explored. In this paper, we propose new approach, called Angle-of-Arrival (AOA) based Three-dimensional Multi-target Localization (ATML). The approach utilizes two anchor (ANs) with antenna arrays to receive the spread spectrum signals broadcast by MSNs. We...
We introduce a semiparametric ``tubular neighborhood'' of parametric model in the multinomial setting. It consists all distributions lying distance-based neighborhood interest. Fitting such tubular allows one to use while treating it as an approximation true distribution. In this paper, Kullback--Leibler distance is used build region. Based on idea can define between distribution and be index fit. The paper develops likelihood ratio test procedure for testing magnitude index. A bootstrap...
Steel wires are widely employed in structural engineering due to their robust strength. However, the emergence of pitting corrosion significantly impacts capacity, fatigue performance, and mechanical traits, with no specific codes addressing this issue. To assess load-bearing capacity corroded steel wires, predict remaining life, analyze failure modes, a comprehensive physical test was conducted. Mechanical evaluations were followed by 3D scanning attributes fracture surface morphology....
A novel low complexity scheme consists of multi-step windowing and modified SIC, is proposed for OFDM systems to reduce ICI caused by time-varying channel. Assuming that the maximum channel delay smaller than guard interval, a module implemented suitably shifting summing multiple weighted ISI-free received signal segments, adopted automatically alleviate effect. Afterwards, SIC equalizer with overlapped multi-block parallel processing further improve BER performance simultaneously iteration...
Dq impedance measurement is of great importance as a part the impedance-based analysis. At present, objects in single-phase vehicle-grid system are mainly obtained by injecting voltage or current disturbance one single frequency into circularly. However, number points increases, there will produce much time-consuming measurement. In this paper, quick dq algorithm for based on multi-frequency sweep proposed. First, pseudo-random binary sequences (PRBS) and ternary modified driving signals...