22 citations · 62 across the 27 of their papers we have counts for
28 papers
Using Terminal Circuit for Power System Electromagnetic Transient Simulation
Yijing Liu, Xiang Zhang, Renchang Dai +1
The modern power system is evolving with increasing penetration of power electronics introducing complicated electromagnetic phenomenon. Electromagnetic transient (EMT) simulation…
An Intelligent Question Answering System based on Power Knowledge Graph
Yachen Tang, Haiyun Han, Xianmao Yu +3
The intelligent question answering (IQA) system can accurately capture users' search intention by understanding the natural language questions, searching relevant content efficient…
Power System Transient Modeling and Simulation using Integrated Circuit
Xiang Zhang, Renchang Dai, Peng Wei +3
Transient stability analysis (TSA) plays an important role in power system analysis to investigate the stability of power system. Traditionally, transient stability analysis method…
Autonomous Charging of Electric Vehicle Fleets to Enhance Renewable Generation Dispatchability
Reza Bayani, Saeed D. Manshadi, Guangyi Liu +2
A total 19% of generation capacity in California is offered by PV units and over some months, more than 10% of this energy is curtailed. In this research, a novel approach to reduc…
Parallel Betweenness Computation in Graph Database for Contingency Selection
Yongli Zhu, Renchang Dai, Guangyi Liu
Parallel betweenness computation algorithms are proposed and implemented in a graph database for power system contingency selection. Principles of the graph database and graph comp…
Graph Computing based Distributed State Estimation with PMUs
Yi Lu, Chen Yuan, Xiang Zhang +4
Power system state estimation plays a fundamental and critical role in the energy management system (EMS). To achieve a high performance and accurate system states estimation, a gr…
Enhancement of Power Equipment Management Using Knowledge Graph
Yachen Tang, Tingting Liu, Guangyi Liu +3
Accurate retrieval of the power equipment information plays an important role in guiding the full-lifecycle management of power system assets. Because of data duplication, database…
A High-Performance Energy Management System based on Evolving Graph
Guangyi Liu, Chen Yuan, Xi Chen +3
As the fast growth and large integration of distributed generation, renewable energy resource, energy storage system and load response, the modern power system operation becomes mu…
Fast Grid Splitting Detection for N-1 Contingency Analysis by Graph Computing
Yongli Zhu, Lingpeng Shi, Renchang Dai +1
In this study, a graph-computing based grid splitting detection algorithm is proposed for contingency analysis in a graph-based EMS (Energy Management System). The graph model of a…
Optimal Battery Energy Storage Placement for Transient Voltage Stability Enhancement
Yongli Zhu, Chengxi Liu, Renchang Dai +2
A placement problem for multiple Battery Energy Storage System (BESS) units is formulated towards power system transient voltage stability enhancement in this paper. The problem is…
Graph Computing based Fast Screening in Contingency Analysis
Yiting Zhao, Chen Yuan, Sun Li +3
During last decades, contingency analysis has been facing challenges from significant load demand increase and high penetrations of intermittent renewable energy, fluctuant respons…
Location Planning of Fast Charging Station considering its Impact on the Power Grid Assets
Daijiafan Mao, Jun Tan, Guangyi Liu +1
Under the ambition of boosting Plug-in Electric Vehicle (PEV) charging speed to a level comparable to the traditional refueling, Fast Charging Station (FCS) has been integrated int…
Substation One-Line Diagram Automatic Generation and Visualization
Jing Hong, Yue Li, Yiran Xu +4
In Energy Management System (EMS) applications and many other off-line planning and study tools, one-line diagram (OLND) of the whole system and stations is a straightforward view…
A Graph Computation based Sequential Power Flow Calculation for Large-Scale ACDC Systems
Wei Feng, Jingjin Wu, Chen Yuan +4
This paper proposes a graph computation based sequential power flow calculation method for Line Commutated Converter (LCC) based large-scale AC/DC systems to achieve a high computi…
Simplify Power Flow Calculation Using Terminal Circuit and PMU Measurements
Renchang Dai, Xiang Zhang, Junjie Shi +3
Power flow calculation methods have been developed in decades using power injections and Newton-Raphson method. The nonlinear characteristics of the power flow to the bus voltage r…
Graph Computing based Distributed Fast Decoupled Power Flow Analysis
Chen Yuan, Yi Lu, Wei Feng +4
Power flow analysis plays a fundamental and critical role in the energy management system (EMS). It is required to well accommodate large and complex power system. To achieve a hig…
Graph Based Power Flow Calculation for Energy Management System
Junjie Shi, Guangyi Liu, Renchang Dai +3
Power flow calculation in EMS is required to accommodate a large and complex power system. To achieve a faster than real-time calculation, a graph based power flow calculation is p…
Power Market Price Forecasting via Deep Learning
Yongli Zhu, Songtao Lu, Renchang Dai +2
A study on power market price forecasting by deep learning is presented. As one of the most successful deep learning frameworks, the LSTM (Long short-term memory) neural network is…
Exploration of Bi-Level PageRank Algorithm for Power Flow Analysis Using Graph Database
Chen Yuan, Yi Lu, Kewen Liu +3
Compared with traditional relational database, graph database, GDB, is a natural expression of most real-world systems. Each node in the GDB is not only a storage unit, but also a…
Power Flow Analysis Using Graph based Combination of Iterative Methods and Vertex Contraction Approach
Chen Yuan, Guangyi Liu, Renchang Dai +1
Compared with relational database (RDB), graph database (GDB) is a more intuitive expression of the real world. Each node in the GDB is a both storage and logic unit. Since it is c…
Unbalanced Multi-Phase Distribution Grid Topology Estimation and Bus Phase Identification
Yizheng Liao, Yang Weng, Guangyi Liu +3
There is an increasing need for monitoring and controlling uncertainties brought by distributed energy resources in distribution grids. For such goal, accurate multi-phase topology…
Graph based Platform for Electricity Market Study, Education and Training
Tao Chen, Chen Yuan, Guangyi Liu +1
With the further development of deregulated electricity market in many other countries around the world, a lot of challenges have been identified for market data management, networ…
CIM/E Oriented Graph Database Model Architecture and Parallel Network Topology Processing
Zhangxin Zhou, Chen Yuan, Ziyan Yao +5
CIM/E is an easy and efficient electric power model exchange standard between different Energy Management System vendors. With the rapid growth of data size and system complexity,…
Exploration of Graph Computing in Power System State Estimation
Chen Yuan, Yuqi Zhou, Guofang Zhang +4
With the increased complexity of power systems due to the integration of smart grid technologies and renewable energy resources, more frequent changes have been introduced to syste…