A5100326220- Power System Optimization and Stability
- HVDC Systems and Fault Protection
- Power Systems and Technologies
- High-Voltage Power Transmission Systems
- Microgrid Control and Optimization
- Smart Grid and Power Systems
- Electric Motor Design and Analysis
- Power Systems and Renewable Energy
- Energy Load and Power Forecasting
- Optimal Power Flow Distribution
- Magnetic Properties and Applications
- Wind Turbine Control Systems
- Multilevel Inverters and Converters
- Sensorless Control of Electric Motors
- Corporate Finance and Governance
- Power Quality and Harmonics
- Power System Reliability and Maintenance
- Evaluation Methods in Various Fields
- Electric Power System Optimization
- Transportation and Mobility Innovations
- Energy, Environment, Economic Growth
- International Business and FDI
- Smart Grid Energy Management
- Firm Innovation and Growth
- Power Systems Fault Detection
Changchun University of Technology
2024
General Electric (United States)
2022-2024
State Grid Corporation of China (China)
2020-2024
Angelo State University
2023-2024
General Electric (Israel)
2024
University of Nottingham Ningbo China
2023
Wuhan Donghu University
2023
State Power Investment Corporation (China)
2022
Shanghai Electric (China)
2022
Warner Pacific College
2017-2022
This article provides analyses of subsynchronous oscillations associated with solar photovoltaics (PVs) observed in real world. All have oscillation frequencies at approximately 20 Hz voltage and current magnitudes. On the other hand, phase current, show very different signatures. Through constructing simplified linear models conducting sensitivity analysis, we are able to associate dynamic phenomena underlying mechanism speculate possible causes 20-Hz oscillations. The analysis results all...
Millimeter-wave (mmWave) networking represents a core technology to meet the demanding bandwidth requirements of emerging connected vehicles. However, feasibility mmWave vehicle-to-everything (V2X) connectivity has long been questioned. One major doubt lies in how highly directional links can sustain under high mobility. In this paper, we present first comprehensive reality check V2X networks. We deploy an experimental testbed mimic typical scenario, and customize COTS radio enable...
This study investigates the relationship between digital transformation (DT) and corporate innovation activities. By studying publicly-listed firms in China, we find that with higher levels of DT tend to spend more on research development (R&D) generate outputs. The impact R&D expenditures is particularly pronounced for limited disclosure information, complex organizational structures, those who do not receive government sponsorship. We no evidence affects through alleviating financial...
Due to the widely deployment of gas-fired units and emerging power-to-gas (P2G) technologies, interdependencies between power systems gas have been enhanced, yet impacts on ability accommodating uncertain variable wind generation are unclear. On one hand, regulation capability might be restricted due pipeline congestion or supply shortage; other P2G facilities could operate as interruptible electrical loads enhance operational flexibility network. This paper aims revisit admissibility...
This paper describes a positive-sequence model to represent two widely reported droop-controlled grid-forming inverters for transmission system transient stability simulation studies. Methods of how develop the equivalent voltage source behind impedance with and without inner control loops, modeling P-f Q-V droop controls, active reactive power limiting modeling, fault current controls have been described in detail. The was implemented commercially available tools compared detailed...
Recently, through efforts lead by the Western Electricity Coordinating Council's Renewable Energy Modeling Task Force, so-called second-generation generic models were developed for modeling inverter based energy sources such as wind and photovoltaic generation. These have been industry vetted, approved, now reside in several commercial software platforms used throughout North America, elsewhere world. The benefit of these is their nature being open publicly available. In this paper, we...
Wireless power transfer (WPT) technology is promising for energy harvesting and electronics powering on towers. This article presents an improved coplanar couplers based WPT system adaptive the Magnetic flux analyses of conventional coaxial coils indicate that significance extensible performance in this application. Improved are further proposed to reduce magnetic interactions between high-voltage components promote performances, which include discrete transmitter windings, vertical receiver...
ABSTRACT This paper presents computer simulation of a field oriented controlled doubly-–ed induction machine (DFIM) drive system. Functions and model this system are given. Necessity the gap flux open loop control is discussed. The damping characteristics during variations both power mains load simulated. Compensation method for increasing speed oscillation proposed. Both test operation show that DFIM has good performance which fulfill requirements some high dynamic, low cost applications.
As the global push for decarbonization of world electric power generation systems continues, deployment ever larger wind plants, as well photovoltaics, and battery energy storage abound worldwide. Roughly a decade ago Western Electricity Coordinating Council's (WECC) Renewable Energy Modeling Task Force successfully achieved goal developing set publicly available, non-proprietary generalized dynamic models computer simulation modeling such renewable (RES) in bulk system planning studies....
The IEEE has recently started to develop a standard for the wireless body area network (WBAN). Providing high mobility with guaranteed QoS over u-healthcare which are built from converged WBAN and WLAN systems is challenging task. This article proposes context-aware management framework can support in networks. salient feature of approach that order seamless management, context information on communication environment, type service, medical emergency been utilized, while minimizing power...
One challenge in power-system control designs is the gap between numerical model-based analysis and complex real-world power systems. With increased data measurements being collected from systems, data-driven (e.g., machine learning) may provide an alternative approach to reveal hidden information through learning real system data, insights for better scheme design during utility planning process. In this study, feature performed evaluate relationships series compensation, generation, path...
Improving the accuracy of load forecasting is great significance to economic dispatch and stable operation power system. A short-term model based on variational mode decomposition (VMD) deep neural network (DNN) proposed. VMD algorithm used decompose series into different intrinsic functions (IMF), each IMF combined with DNN for prediction. Finally, four results part are added together. Through experimental simulation, compared result empirical (EMD) methods, proposed method can effectively...
This article analyzes the generator dynamic models most commonly used in commercial power system simulation programs. A new type of model is proposed for improving modeling accuracy and performances. Mathematical derivations are detailed to provide origin model. Comparisons made using field testing data on round-rotor salient-pole generators. The advantage effectiveness demonstrated. Further study future work discussed.
A breakdown model of rod-plane air gaps in the presence water streams has been established. Water which do not fully cross air-gaps are considered. This involves breakup length and surface conductivity a stream, stream's diameter, number droplets remaining gap distance between two adjacent droplets. The voltage is considered parts: one being drop along stream surface, other across gap. To study components drop, equivalent voltage-current characteristics were investigated. Additionally,...
In order to balance the load of power grid, maintain safe and stable operation reduce charging cost electric vehicle users, this paper, based on multi-objective optimization model time-of-use electricity price, takes time as variable, minimum peak-valley difference grid objective. And establishes under consideration various constraints such flow. Through solution particle swarm method. It is proved that tariff strategy can not only users. But also play a role "peak shaving valley filling"...