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Prof. CHENG Ka-wai Eric

Department of Electrical Engineering
The Hong Kong Polytechnic University

Projects Display.

MyCarTM 2kW, 3kW, 6kW

Vehicle R&D
Vehicle electrical design
Battery charger
Vehicle safety
Electronic circuit to vehicle and control
Packaging for vehicle
Scalable design from 3kW to 20kW

Solar Powered Air Conditioning for Vehicles

All electric compressor
Variable speed drive for compressor
High efficiency for solar panel
Super-thin mono-crystalline
System control optimisation
Scalable design
Low cost and easy to install
Good saving in fuel consumption

EV Charging Station

Octopus or electronic payment system
Adapt to a number of charging scenario requirement
Use Program Logic Controller for electronic control
Safety –overall current, RCD, temperature protection, thermal control, damage
Extendable to large number of parking lots
Higher network security
Meet IEC61851 standards

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In-wheel Motor

Fault tolerance
Low cost
Low weight
Direct drive
High power regenerative braking
Extend to Anti-lock Braking System
Extend to Skid steering (EST)

LED and HID Development for Vehicles

Switched mode control of ballast
High power
Good thermal control
High voltage warm–excitation to HID lamps
Applicable to commercial vehicle
LED designed for front, rear & signal lights

Integrated Charger

Save components
Soft-switching
High frequency magnetics
3 -stages charging
High efficiency
On-board charger
High power factor

Polymer Bonded Magnetics

Low cost
Flexible in shape and size
Non-brittle
High power LED design
Light weight, any power level
Suitable for high frequency

SRG for Wind Power Generation

Design and Fabrication of C-core Switched Reluctance Generator
Design and fabrication of C-SRG Controller
Characterization of C-core Switched Reluctance Generator
Control of C-core Switched Reluctance Generator
Integration and Test of C-core SRG System

Active Suspension

Based on linear switched-reluctance drive
Inherit fault-tolerance
Large force
High dynamic response, >10 times
Fail-safe solution
Improved dynamic behavior
Accurate force control
Power recovery

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Off-shore Solar Farm Development Programme

Fixing system development
Maximum power point tracking
High power protection
Electric protection system for electric vessel
Power connection method for shore side connection

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High Frequency AC Distribution

Cost reduction of power circuit
Loss reduction in power conversion
Loss reduction in power delivery
Ease of galvanic isolation
Improved dynamic response
High power density
Improved reliability
More safety

Linear Refrigeration Compressors for Refrigerators and Air-Conditioners

Design of linear reciprocating switched reluctance actuators
Design of controllers for linear reciprocating switched reluctance actuators
Control technique of linear compressors
High efficiency
Applicable to refrigerators and air-conditioners

Bio-Mechatronic Robotic System

SEMG signal
DSP control
Calibration
Power electronics for motor drive

Auto Solar Maximum Power Point Tracking System

The system is without light sensors, so the reliability is increased.
Only one motor is used and the power consumption is decreased half compared with two-motor tracking system.
Movable platform is designed to facilitate the system test.

Auto Tracking System for Concentrating Photovoltaics (CPV)

High-precision multi-dimensional auto solar tracking control system
High-precision Auto Tracking Control Method

Body Integrated Super-capacitor for Next Generation of Electric Vehicles

Super-capacitor management system (SCMS)
Equalizing circuit of super-capacitor cells connected in series
Active balancing, simple circuit topology, low cost, fast dynamic response and high efficiency
BISC package to match vehicular body

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Body-Integrated Super-capacitor for Electric Vehicles

Body-integrated and reduce the packaging size
Represent new generation electric vehicle
Provide rapid charging
Increase internal room

High Capacity Supercapacitor with Ultra-Low Resistance and Distributed Generation Power Balancing System

High power super-capacitor energy storage
Smart grid power connection
Power Balancing
Grid tied inverter

The Development and Application of All Electric Intelligent Anti-lock Braking System for Electric Vehicles

Electromagnetic/Electromechanical brake (EMB)
All electric anti-lock braking system (E-ABS)
Intelligent ABS control
No pedal vibration in ABS operation and extremely quiet in operation
Individual adjustable pedal module

Application of Power Electronics Concept to Electric Vessel

Develop the new type of electric vessel concept floating on sea water
Examine the power distribution system for electric vessel system
Develop the electric motor drive and motor unit
Develop the power conversion units
Develop the possible rescue application for near shore e-boat

The Electric Vessel Novel Technology for all Electric Jet Propulsion System and its Water Based Electric Charging Techniques

System simulation technique of electrical system of all electric vessel
20kW all electric jet propulsion with electric drive
20kW DC power network for vessel
Electric protection system for electric vessel
Motor power conditioning for the electric propulsion

Magnetic Power Smart Power Distribution for Future Internet

Examination of high efficiency magnetic power transfer
Study the high power magnetic tapping
Study the magnetic power platform
Examine the linear power inductive tapping
Magnetic everywhere research and design concept

Arcing and High Frequency Conductor Issues for HSR Traction System and its Associated EMI Implication

Examination of the arcing characteristics of railway system and its EMI implication
Study the Arcing compensation using a power electronics techniques to reduce the effect of the arcing
Examination of the electromagnetic induction of conductors due to high frequency and high speed for railway system

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Ocean Wave Power Generation Research Study

Examination of the high gear ratio design for wave power
Develop the generator for wave power
Develop a low wave speed to high electric frequency generator
Examine the single arm, three-arm and 4-arm generator structure

World's first Ammonia Powered Electric Vehicle

Examination of ammonia power sources for mobility
Develop the power conversion for ammonia
Develop the fuel cell for ammonia fuel
Develop the cracker for ammonia to hydrogen

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