Search Results for author: Rui Cheng

Found 14 papers, 1 papers with code

Image-Text Matching with Multi-View Attention

no code implementations27 Feb 2024 Rui Cheng, Wanqing Cui

Existing two-stream models for image-text matching show good performance while ensuring retrieval speed and have received extensive attention from industry and academia.

Image-text matching Retrieval +1

Optimal Power Flow for Integrated Primary-Secondary Distribution Networks with Service Transformers

no code implementations23 Jun 2023 Rui Cheng, Naihao Shi, Zhaoyu Wang, Zixiao Ma

This proposed SDNet OPF model can be easily embedded into existing primary distribution network (PDNet) OPF models, resulting in a holistic power system decision-making solution for integrated primary-secondary distribution networks.

Decision Making

Robust Model Predictive Techno-Economic Control of Active Distribution Networks

no code implementations5 May 2023 Salish Maharjan, Prashant Tiwari, Rui Cheng, Zhaoyu Wang

Stochastic controllers are perceived as a promising solution for techno-economic operation of distribution networks having higher generation uncertainties at large penetration of renewables.

Continuous Control

Generalized Analytical Estimation of Sensitivity Matrices in Unbalanced Distribution Networks

no code implementations19 Apr 2023 Salish Maharjan, Rui Cheng, Zhaoyu Wang

Hence, this paper enhances the scope of analytical estimation of sensitivity matrices for unbalanced networks with 1-phase, 2-phase, and 3-phase Delta/Wye-connected loads, DERs with smart inverter functionality, and substation/line step-voltage regulators (SVR).

Data-Driven Affinely Adjustable Robust Volt/VAr Control

no code implementations10 Sep 2022 Naihao Shi, Rui Cheng, LiMing Liu, Zhaoyu Wang, Qianzhi Zhang

Finally, a distributed consensus-based solution, based on the alternating direction method of multipliers (ADMM), for the AARVVC is applied to decide the inverter reactive power adjustment rule with respect to its active power.

Automatic Self-Adaptive Local Voltage Control Under Limited Reactive Power

no code implementations18 Jun 2022 Rui Cheng, Naihao Shi, Salish Maharjan, Zhaoyu Wang

To this end, this paper proposes an automatic self-adaptive local voltage control (ASALVC) by locally controlling VAr outputs of distributed energy resources.

Online Voltage Control for Unbalanced Distribution Networks Using Projected Newton Method

no code implementations11 Jan 2022 Rui Cheng, Zhaoyu Wang, Yifei Guo, Qianzhi Zhang

It utilizes a non-diagonal symmetric positive definite matrix, developed from the Hessian matrix of the objective, to scale the gradient, and thus a fast convergence performance can be expected in this Newton-like algorithm.

Data-Driven Outage Restoration Time Prediction via Transfer Learning with Cluster Ensembles

no code implementations21 Dec 2021 Dingwei Wang, Yuxuan Yuan, Rui Cheng, Zhaoyu Wang

This paper develops a data-driven approach to accurately predict the restoration time of outages under different scales and factors.

Computational Efficiency Transfer Learning

Progressive Graph Convolution Network for EEG Emotion Recognition

no code implementations14 Dec 2021 Yijin Zhou, Fu Li, Yang Li, Youshuo Ji, Guangming Shi, Wenming Zheng, Lijian Zhang, Yuanfang Chen, Rui Cheng

Moreover, motivated by the observation of the relationship between coarse- and fine-grained emotions, we adopt a dual-head module that enables the PGCN to progressively learn more discriminative EEG features, from coarse-grained (easy) to fine-grained categories (difficult), referring to the hierarchical characteristic of emotion.

EEG EEG Emotion Recognition

Analyzing Photovoltaic's Impact on Conservation Voltage Reduction in Distribution Networks

no code implementations27 Oct 2021 Rui Cheng, Zhaoyu Wang, Yifei Guo, Fankun Bu

The results show that the allocations of solar PV have the most significant effect on the CVR performance, where a dispersed allocation of solar PV will help flatten voltage profile and achieve deeper voltage reductions at the substation, less energy consumption and line losses.

A Two-layer Approach for Estimating Behind-the-Meter PV Generation Using Smart Meter Data

no code implementations14 Oct 2021 Fankun Bu, Rui Cheng, Zhaoyu Wang

In this paper, we have come up with a novel two-layer approach to disaggregate the unknown PV generation and native demand from the known hourly net demand data recorded by smart meters: 1) At the aggregate level, the proposed approach separates the total PV generation and native demand time series from the total net demand time series for customers with PVs.

Time Series Time Series Analysis

An Online Feedback-Based Linearized Power Flow Model for Unbalanced Distribution Networks

no code implementations27 Mar 2021 Rui Cheng, Zhaoyu Wang, Yifei Guo

The non-linearity and non-convexity of power flow models and the phase coupling challenge the analysis and optimization of unbalanced distribution networks.

Multistage Model for Robust Face Alignment Using Deep Neural Networks

no code implementations4 Feb 2020 Huabin Wang, Rui Cheng, Jian Zhou, Liang Tao, Hon Keung Kwan

First, a spatial transformer - generative adversarial network which consists of convolutional layers and residual units is utilized to solve the initialization issues caused by face detectors, such as rotation and scale variations, to obtain improved face bounding boxes for face alignment.

Face Alignment Generative Adversarial Network +1

Exploiting Contextual Information via Dynamic Memory Network for Event Detection

1 code implementation EMNLP 2018 Shaobo Liu, Rui Cheng, Xiaoming Yu, Xue-Qi Cheng

Meanwhile, dynamic memory network (DMN) has demonstrated promising capability in capturing contextual information and has been applied successfully to various tasks.

Event Detection

Cannot find the paper you are looking for? You can Submit a new open access paper.