A5101854219- Smart Grid Energy Management
- Multilevel Inverters and Converters
- Advanced DC-DC Converters
- Microgrid Control and Optimization
- High-Voltage Power Transmission Systems
- Power Systems and Technologies
- Elevator Systems and Control
- Electric Vehicles and Infrastructure
- Advanced Battery Technologies Research
- HVDC Systems and Fault Protection
- Advanced Decision-Making Techniques
- Wireless Power Transfer Systems
- Software Engineering Research
- Smart Grid Security and Resilience
- Smart Grid and Power Systems
- Remote Sensing and Land Use
- Quality and Safety in Healthcare
- Industrial Technology and Control Systems
- Power Systems Fault Detection
- Traffic control and management
- Quality Function Deployment in Product Design
- Advanced Computational Techniques and Applications
- Machine Learning and ELM
- Electrocatalysts for Energy Conversion
- Vehicle emissions and performance
Henan University of Technology
2024
The University of Sydney
2020-2023
Harbin Engineering University
2020-2023
Beijing University of Technology
2022
North China Electric Power University
2013-2021
Qingdao University
2020
Harbin University of Science and Technology
2015
China Electric Power Research Institute
2014
Northeast Electric Power University
2014
Shanghai Optical Instrument Research Institute
2009
Growth of dendrites, the low plating/stripping efficiency Zn anodes, and high freezing point aqueous electrolytes hinder practical application Zn-ion batteries. Here, a zwitterionic osmolyte-based molecular crowding electrolyte is presented, by adding betaine (Bet, by-product from beet plant) to electrolyte, solve abovementioned problems. Substantive verification tests, density functional theory calculations, ab initio dynamics simulations consistently reveal that side reactions growth...
Purpose Research in tourism and hospitality industry marketing has identified many highly effective applications of social media. However, studies the existing literature do not enable a comprehensive understanding this phenomenon because they lack theoretical foundation. Therefore, study systematically reviewed from perspective task-technology fit (TTF) theory. The purpose paper is to map out what known about media use areas need further exploration. Design/methodology/approach A...
For intelligent power utilisation of demand side management, the implementation non‐intrusive load identification is an important technology. This study proposed event‐based algorithm for residential loads combined with underdetermined decomposition and characteristic filtering. method first needs to monitor circuit in real time. After detecting electrical switching event, are performed. By combining operating habits equipment, problem that single current signal difficult solve by...
The marine DC power supply system is the key to a ship’s supply, which needs convert energy from storage batteries or distributed generation units into stable voltage for electric propulsion electronics. LLC resonant converter can be used as conversion link in due its ability realize electrical isolation high-power environment and soft switching within wide load range. Aiming at problem of sudden changes gain high frequency under light conditions insufficient heavy parasitic parameters...
As a result of extensive penetration wind farms into electricity grids, power systems face enormous challenges in daily operation because the intermittent characteristics energy. In particular, load peak-valley gap has been dramatically widened energy-integrated systems. How to quickly and efficiently meet peak-load demand become an issue practitioners. Previous literature illustrated that response (DR) is important mechanism direct customer usage behaviors reduce peak at critical times....
The DAB-LLC hybrid bidirectional converter based on Sigma structure combines the advantages of LLC resonant and dual active bridge converter, which has gained attention many scholars in recent years. However, there are few studies power distribution relationship internal sub-module, affects performance efficiency whole system. Therefore, this paper proposes a model predictive control strategy balance, firstly predicts output by means discrete reduced-order then utilizes constructed to design...
For reduce the high inrush current caused by low impedance of resonant tank LLC converter during start-up process, this brief proposes a PWM strategy based on event triggered control (ETC) method. In order to select trigger event, segmented state space modeling is used analyze relationship between system variables and driving signals. Then, it selects capacitor voltage in establish ETC function obtain for process. When output gradually established, amplitude will be less than pre-set...
Wind farms integrated by VSC-HVDC should have fault ride-through (FRT) capability during the AC grid disturbances. This paper investigates V-I characteristic of transmission system used for wind integration at first. Based on analysis turbines inertia, a novel FRT control strategy proposed is discussed. When DC voltage suffers fluctuations, adjusts farm frequency according to deviation. Moreover, resulting imbalanced power temporarily stored in form generator rotor kinetic energy so as keep...
The rapid growth of renewable distributed generation (RDG) requires further development the electricity market for energy. This paper proposes an energy-sharing platform as energy management model with battery storage system (BESS) and RDG, this can be compared a banking in which various kinds participants, including users, generators, devices, transfer both price. Furthermore, up-reserve (UR) is defined BESS to quantize charging value management. Moreover, pricing optimized by game theory...
With poor peak load regulating capacity, renewable energy generation is intermittent and fluctuating, which results in the insufficient acceptance capacity of power grid. Based on state-queuing model aggregate air conditioning loads, this paper develops a control algorithm to achieve consumption output tracking. The curves loads can be controlled by changing initial temperature distribution. Under different distributions, represent fixed fluctuation, basis A virtual curve set established...
t is a powerful guarantee for the safe and stable operation of grid to detect study its characteristics such as active power, reactive flicker harmonic. Dewetron5000 system software can be used collect analyze experimental data power without getting corresponding conclusion quickly, directly clearly. In view above questions, has been developed test quality wind farm into grid, collected after being processed by secondary display situations regulation clearly fast. The very important role on...
The development of smart transformers meets with some issues as mismatch interfaces between mechanical parts and electrical parts, non-standard function settings in components other similar problems. To solve these issues, this paper proposed an integrated design based on the theory design, elaborating transformer sensor integration well component integration. And a simulation leakage current at tap capacitive bushing under different levels voltage was conducted end paper, providing guide...
Purpose This study aims to solve the problem that under light-load conditions, output voltage regulation capability is lost due fact gain of LLC resonant converter does not decrease with increase switching frequency. Design/methodology/approach In this paper, impedance model considering parasitic parameters primary and secondary sides calculated limitations previous method are explained a new circuit improvement proposed. Findings an improved proposed, Bode plot used verify can effectively...
The modular multilevel converter (MMC) had shown great value in HVDC systems. One of the major obstacle that limited usage MMC multi-terminal systems (MTDC) is DC fault handling method. To minimize impact faults MTDC, circuit breakers (HVDC CBs) was a preferred choice. Due to dc current breaking capability, CBs combined with superconducting limiters (SFCLs) potential solution. For MMC-MTDC and SFCLs, this paper proposed side main parameters selection This method included for selecting...
This article is one of the series papers about Cross-linked polyethylene cable partial discharge on-line monitoring and positioning system. Design application, which system software, discussed from run analysis , log record PC control, etc. Basing on field running effect system, it manifests correctness effectiveness above methods.
The research and development on the on-line monitoring system of cable line arrester is discussed from composition, main functions system, features tools, practical experience construction indicates necessity effectiveness method.
China is now rapidly developing ultra-high voltage (UHV) AC transmission lines to meet the needs of national economic development. Due limited land resources, choice line corridor has become a design problem The proximity be close residential area causes electric field distortion and partial exceedances at buildings, which public concern. This paper uses finite element method calculate intensity distribution law roof platform observation surface near 1000kV double-circuit line, explores...
To minimize the impact of dc faults in modular multilevel converter based multi-terminal high voltage transmission system (MMC-MT-HVDC, MMC-MTDC), HVDC circuit breakers (HVDC CBs) combined with superconducting fault current limiters (SFCLs) was a preferred choice. For MMC-MTDC CBs and SFCLs, this paper firstly analyzed characteristics on equivalent electrical for different operation stages. Then, introduced basic principle resistive SFCLs inductive their effect limiting current. Based main...
Soft start-up is necessary for LLC converter to avoid high inrush current. In this paper, an event trigger control (ETC) method the process proposed. It firstly establishes piecewise state space model, which can reveal relationship between resonant capacitor voltage and current during start-up. And then event-trigger function established switching according model. Experimental results verify that proposed successfully limit peak be pre-setting build-up time of output reduced. The biggest...
This article is one of the series papers about research and development partial discharge monitoring positioning systems in cross-linked polyethylene(XLPE) cable. We discuss design hardware principle diagram which belongs to on-line system XLPE cable terms block diagram, power management module control processing so on, operation effect shows correctness effectiveness above methods.