Jingang Han
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View article: Multiple harmonic current injection system for AC filter capacitors in HVDC converter stations considering grid frequency fluctuation
Multiple harmonic current injection system for AC filter capacitors in HVDC converter stations considering grid frequency fluctuation Open
With the development of the High Voltage Direct Current (HVDC) technology, the audible sharp noise originated by the AC filter capacitors has become a serious noise pollution problem in HVDC converter stations. However, the harsh and compl…
View article: Lithium-ion-battery state of health estimation based on coefficient of variation
Lithium-ion-battery state of health estimation based on coefficient of variation Open
The state of health (SOH) is an important indicator of the reliable and safe working of lithium-ion battery systems in new energy vehicles and energy storage power stations. In order to find a fast, accurate, concise and understandable app…
View article: Energy Management of Green Port Multi-Energy Microgrid Based on Fuzzy Logic Control
Energy Management of Green Port Multi-Energy Microgrid Based on Fuzzy Logic Control Open
The green port multi-energy microgrid, featuring renewable energy generation, hydrogen energy, and energy storage systems, is an important gateway to achieve the net-zero emission goal. But there are many forms of energy in green port mult…
View article: ZrO2-CeO2/WO3 heterostructure films prepared by magnetron sputtering for humidity-tolerant triethylamine sensing
ZrO2-CeO2/WO3 heterostructure films prepared by magnetron sputtering for humidity-tolerant triethylamine sensing Open
View article: EFFECT OF NOZZLE ANGLE OF PLANT PROTECTION UNMANNED AERIAL VEHICLE ON DROPLET DEPOSITION DISTRIBUTION
EFFECT OF NOZZLE ANGLE OF PLANT PROTECTION UNMANNED AERIAL VEHICLE ON DROPLET DEPOSITION DISTRIBUTION Open
During the field application of pesticides by plant protection UAV, due to the interference of meteorological factors or operating parameters, the deposition effect of droplets is poor. In order to explore the impact of the nozzle angle of…
View article: A Fault-Tolerant Control Method Based on Reconfiguration SPWM Signal for Cascaded Multilevel IGBT-Based Propulsion in Electric Ships
A Fault-Tolerant Control Method Based on Reconfiguration SPWM Signal for Cascaded Multilevel IGBT-Based Propulsion in Electric Ships Open
Electric ships have been developed in recent years to reduce greenhouse gas emissions. In this system, inverters are the key equipment for the permanent-magnet synchronous motor (PMSM) drive system. The cascaded insulated-gated bipolar tra…
View article: Hierarchical Energy Management of DC Microgrid with Photovoltaic Power Generation and Energy Storage for 5G Base Station
Hierarchical Energy Management of DC Microgrid with Photovoltaic Power Generation and Energy Storage for 5G Base Station Open
For 5G base stations equipped with multiple energy sources, such as energy storage systems (ESSs) and photovoltaic (PV) power generation, energy management is crucial, directly influencing the operational cost. Hence, aiming at increasing …
View article: Predictive load‐feedforward control for DC‐link voltage suppression and dynamic improvement of battery charging and discharging converter
Predictive load‐feedforward control for DC‐link voltage suppression and dynamic improvement of battery charging and discharging converter Open
With the continuous progress of new energy technology, new energy vehicles have ushered in a stage of rapid development. As the central core of new energy vehicle, the power accumulator batteries have been attracting increasing attention. …
View article: Fault diagnosis for multiple current sensors in grid‐connected inverter based on average modulation voltage
Fault diagnosis for multiple current sensors in grid‐connected inverter based on average modulation voltage Open
Grid‐connected inverters are the core equipment in the renewable power system. There are multiple current sensors which may affect the driving module of the switch in inverter. In multiple current sensor fault diagnosis, the coupling betwe…
View article: Synthesis of Porous Materials Using Magnesium Slag and Their Adsorption Performance for Lead Ions in Aqueous Solution
Synthesis of Porous Materials Using Magnesium Slag and Their Adsorption Performance for Lead Ions in Aqueous Solution Open
Magnesium slag-based porous materials (MSBPM) were successfully synthesized using alkali activation and foaming methods as an effective adsorbent for Pb2+ in solution. The effects of foaming agent type, foaming agent dosage, alkali dosage,…
View article: Study on the Design and Experiment of Trichogramma Ball Delivery System Based on Agricultural Drone
Study on the Design and Experiment of Trichogramma Ball Delivery System Based on Agricultural Drone Open
Trichogramma-based biological control technology is of great significance to the development of green agriculture. Agricultural drones have the advantages of low-altitude and high-speed operations and have been well applied and widely reco…
View article: Particle Deposition Distribution of Multi-Rotor UAV-Based Fertilizer Spreader under Different Height and Speed Parameters
Particle Deposition Distribution of Multi-Rotor UAV-Based Fertilizer Spreader under Different Height and Speed Parameters Open
As an effective supplement to ground machinery, UAVs play an important role in agriculture and have become indispensable intelligent equipment in the development of precision agriculture. Various types of agricultural UAV-based spreading d…
View article: Path Planning of Indoor Air Sampling Pipe in Substations Based on Fast Extended Random Number Algorithm
Path Planning of Indoor Air Sampling Pipe in Substations Based on Fast Extended Random Number Algorithm Open
The substation is a fire accident-prone place, the substation fire automatic alarm system optimization design is an organic part of the fire safety work, and the substation air sampling pipe laying structure design method is an important l…
View article: Optimal SOC Control and Rule-Based Energy Management Strategy for Fuel-Cell-Based Hybrid Vessel including Batteries and Supercapacitors
Optimal SOC Control and Rule-Based Energy Management Strategy for Fuel-Cell-Based Hybrid Vessel including Batteries and Supercapacitors Open
Around the world, the development of electric vehicles is underway, including in maritime transportation. However, the development of clean energy vessels still has a long way to go. Fuel cells (FCs) are a relevant choice among the many cl…
View article: A Fault Tolerance Method for Multiple Current Sensor Offset Faults in Grid-Connected Inverters
A Fault Tolerance Method for Multiple Current Sensor Offset Faults in Grid-Connected Inverters Open
Three-phase grid-connected inverters have been widely used in the distributed generation system, and the current sensor has been applied in closed-loop control in inverters. When the current sensor offset faults occurs, partial fault featu…
View article: Position Control of Heave Compensation for Offshore Cranes Based on a Particle Swarm Optimized Model Predictive Trajectory Path Controller
Position Control of Heave Compensation for Offshore Cranes Based on a Particle Swarm Optimized Model Predictive Trajectory Path Controller Open
The wave compensation system can be very useful in several naval applications. It can greatly reduce the relative irregular motion between the two ships when replenishment operations are performed, or between the ship and the offshore plat…
View article: Improved Fractional-Order PID Controller of a PMSM-Based Wave Compensation System for Offshore Ship Cranes
Improved Fractional-Order PID Controller of a PMSM-Based Wave Compensation System for Offshore Ship Cranes Open
Wave compensation technology is crucial to the safety of the ship operation and the accurate placement of load. Its compensation efficiency and the gentle change of the rope tension are particularly important. In this paper, we adopt perma…
View article: An Improved Dictionary-Based Method for Gas Identification with Electronic Nose
An Improved Dictionary-Based Method for Gas Identification with Electronic Nose Open
The dictionary learning algorithm has been successfully applied to electronic noses because of its high recognition rate. However, most dictionary learning algorithms use l0-norm or l1-norm to regularize the sparse coefficients, which mean…
View article: Development and Research Status of Tidal Current Power Generation Systems in China
Development and Research Status of Tidal Current Power Generation Systems in China Open
Considering the depletion of oil, coal, gas and other fossil energy, and the increasingly serious environmental pollution, all countries in the world are developing clean and renewable energy, such as wind energy, water energy, solar energ…
View article: Energy Management Using a Rule-Based Control Strategy of Marine Current Power System with Energy Storage System
Energy Management Using a Rule-Based Control Strategy of Marine Current Power System with Energy Storage System Open
With the rapid development of renewable energy technology, marine current energy is treated as the most desirable form of ocean energies. Due to the nature of marine current energy, simple structure, high reliability, and good control perf…
View article: FFT-based selective harmonic current control of AC filter capacitors for audible noise analysis
FFT-based selective harmonic current control of AC filter capacitors for audible noise analysis Open
With the development of High Voltage Direct Current (HVDC) and ultra HVDC, a growing number of high voltage film filter capacitors have been installed for harmonic suppression. But the capacitors generate severe audible noise in the conver…
View article: Dynamic Improvement with a Feedforward Control Strategy of Bidirectional DC-DC Converter for Battery Charging and Discharging
Dynamic Improvement with a Feedforward Control Strategy of Bidirectional DC-DC Converter for Battery Charging and Discharging Open
With the increasing importance of power accumulator batteries in electric vehicles, the accurate characteristics of power accumulator batteries have an important role. In order to evaluate the power accumulator battery, battery charging an…
View article: A Three-Phase Bidirectional Grid-Connected AC/DC Converter for V2G Applications
A Three-Phase Bidirectional Grid-Connected AC/DC Converter for V2G Applications Open
The smart grid and electric vehicles (EVs) are widely used all over the world. As the key role, the Vehicle-to-Grid (V2G) has been attracting increasing attention. The bidirectional grid-connected AC/DC converter is one of the indispensabl…
View article: High-order sliding mode control of a doubly salient permanent magnet machine driving marine current turbine
High-order sliding mode control of a doubly salient permanent magnet machine driving marine current turbine Open
International audience
View article: Fractional-Order PI Control of DFIG-Based Tidal Stream Turbine
Fractional-Order PI Control of DFIG-Based Tidal Stream Turbine Open
This study mainly investigates the current and speed control strategies of a doubly-fed induction generator (DFIG), which is applied to a tidal stream turbine (TST). Indeed, DFIG using integer-order PI (IOPI) controller has been widely pro…
View article: Multiple Harmonic Current Injection System for Audible Noise Analysis of AC Filter Capacitors in Converter Stations
Multiple Harmonic Current Injection System for Audible Noise Analysis of AC Filter Capacitors in Converter Stations Open
The audible noise of AC filter capacitors is one of the major noise sources in High Voltage Direct Current (HVDC) converter stations. In order to avoid the sharp noise of AC filter capacitors, it is necessary to design a Multiple Harmonic …
View article: Simplified Finite Set Model Predictive Control Strategy of Grid-Connected Cascade H-Bridge Converter
Simplified Finite Set Model Predictive Control Strategy of Grid-Connected Cascade H-Bridge Converter Open
Finite set model predictive control (FS-MPC) has become a promising control technology in power converter, because of the advantages of good dynamic response and accurate current tracking capability. In real-time control process, the conve…