A5100620968- Electric Motor Design and Analysis
- Sensorless Control of Electric Motors
- Magnetic Bearings and Levitation Dynamics
- Industrial Technology and Control Systems
- Magnetic Properties and Applications
- Geothermal Energy Systems and Applications
- Induction Heating and Inverter Technology
- HVDC Systems and Fault Protection
- High-Voltage Power Transmission Systems
- Power Systems and Renewable Energy
- Traditional Chinese Medicine Studies
- Advanced Combustion Engine Technologies
- Multilevel Inverters and Converters
- Tribology and Lubrication Engineering
- Global Education and Multiculturalism
- Scientific Research and Studies
- Integrated Energy Systems Optimization
- Cloud Computing and Remote Desktop Technologies
- International Student and Expatriate Challenges
- UAV Applications and Optimization
- Hydrogen Storage and Materials
- Soil and Unsaturated Flow
- Climate change and permafrost
- Geological Studies and Exploration
- Digital Games and Media
Hong Kong University of Science and Technology
2022-2025
University of Hong Kong
2022-2025
Xi'an Jiaotong University
2024
Huaneng Clean Energy Research Institute
2024
China Huaneng Group Co., Ltd. (China)
2024
Energy Foundation
2024
China Electric Power Research Institute
2018-2023
Inner Mongolia Autonomous Region Meteorological Bureau
2023
East China University of Technology
2023
North China Electric Power University
2018-2023
The increasing power density of permanent magnet synchronous motors has led to a severe motor heating problem that demands precise rotor temperature information avoid demagnetization. Traditional estimation techniques rely on thermal models require specialized knowledge in design, thermodynamics, and material science. However, parameters are often hard obtain real applications contain significant mismatches when the working environment varies. To overcome this challenge, letter proposes an...
The identifiability of parameters in permanent magnet synchronous motors (PMSMs) depends on the operating conditions. Due to disturbances and noise actual systems, conditions that rely solely traditional observability theorems for parameter estimation are ill-conditioned under certain environments, which cannot provide a definite reference accurate outcomes. This paper introduces novel theorem regarding degree bridge gap analyses, defines quadratic function create unique information matrix...
In our increasingly electrified society, electricity has become indispensable to both production and daily life. However, high-load electric energy transmission presents inherent safety risks. To ensure the secure transportation of energy, live work on distribution networks is essential. traditional techniques require a high level dependence worker experience, which frequently leads inaccurate distances degrades security. This study proposes integration Unmanned Aerial Vehicles (UAVs) with...
The paper proposes a general-purpose full-position estimation strategy for switched reluctance motors (SRMs) in high-speed operation using single-phase adaptive observer (SPAO). proposed approach does not need pre-stored flux linkage characteristics of SRMs the full range position estimation, thereby avoiding offline magnetic parameter measurement. SPAO has excellent band-pass characteristics, which can effectively suppress bias and harmonics from real-time stator flux. Therefore, nonlinear...
Parameter estimation of permanent magnet synchronous motors (PMSMs) is broadly researched, while the parameter observability has not been well-discussed. This article employs local weak theory to obtain unified observable conditions and give a definite reference for estimation. Based on results, novel machine algorithm based convex optimization proposed verify these conditions. scheme establishes an integrated cost function solves it by numerical method estimate parameters. Then, with...
To address the issues of magnetic parameter dependence and insufficient dynamic performance in high-speed sensorless control Switched Reluctance Motors (SRMs), this paper proposes a scheme based on Delayed Signal Cancellation Flux Observer (DSCFO) for SRM drives. This improves while achieving control, without need characteristics. Due to superior filtering efficiency DSCFO, proposed observer eliminates non-linear terms calculated single-phase flux linkage extracts pair orthogonal signals...
The new medical reform policy has been gradually implemented, and drug addition in tertiary hospitals have abolished. implementation of graded diagnosis treatment system makes the competition environment large public unprecedentedly severe. In 2016, Ministry Finance promoted application management accounting institutions, providing ideas for performance hospitals. This paper studies existing assessment S hospital based on balance revenue expenditure. Through study problems, balanced...
In the context of '3060', carbon peaking and neutrality power system is a daunting task. It feasible solution to induce develop in low direction by establishing step trading system. This paper establishes emission reduction interval tax model through mathematical methods, uses suitable functions portray neutral process. At same time, this considers role thermal units safeguarding with high proportion renewable energy, on basis, target established. The feasibility method verified bringing it...
In recent years, permanent magnet synchronous motors (PMSMs) are widely used in electric vehicles due to the high-power density. The increasing power density of PMSMs can result rapid temperature rise, which leads a negative impact on machine. high may lead weakened winding insulation stator slots and irreversible demagnetization magnet. order avoid overheating running, massive methods aiming estimate inside investigated. However, traditional like Lumped Parameter Thermal Networks (LPTNs)...
At present, China has become the largest automobile production and sales country in world, second lubricant consumption country. It is of great significance to establish China’s independent certification evaluation system for lubricants.In recent years, heavy-duty diesel engine basically realized technology autonomy, mode standard equivalent API specification not suitable national conditions. imperative develop a oil quality research that This paper mainly introduces series on performance...
This paper selects 6 gasoline detergent synergists and diesel that are mainstream in the market. The changes mass, volume, hardness, size surface morphology of main components engine fuel supply system after being immersed containing for 28 days were studied,and these compared with benchmark fuel. results show most have almost no corrosive effect on or close to reference fuel, but some a slight swelling system.
Chinese Abstract: 澳門過去幾年的財政年度都有把盈餘派給市民的做法，本文旨在分析澳門政府派錢的政策利弊，和提出方法有效分配財政盈餘。
According to the problem that intelligence is not high of soccer robot, using mechanical theory as a guide, making some analyses and calculations on pressure transmutation states chip kick mechanics, conducting optimal design too, then structure mechanics more rationalization. Experiments show new robot controller features quick response servo rigidity, provide kind method for improving perfecting control system, at same time, filling needs producing.