2.1 ELECTRIC POWER CONVERSION AND POWER QUALITY ASSURANCE
This research mainly focuses on four fields: 1) power quality; 2) HVDC and FACTS; 3) alternate electric power conversion and intelligent transmission & distribution; 4) electric vehicle charge-discharge properties and its impact on the power grid. The aim of this research is to propose novel circuit topologies and enhanced control strategies for the efficient power conversion and integration of the renewable energy, reveal the principle of power conversion and interaction mechanism of AC, DC and FACTS, and to achieve safe and efficient utilization of power energy.
CONCEPT OF PQ MONITORING SYSTEM VALVE OF NANHUI VSC-HVDC PROJECT IN SHANGHAI
CONCEPT OF INTELLIGENT TRANSMISSION AND DISTRIBUTION CONCEPT OF INTEGRATION OF EV
DISPATCH AND CONTROL SYSTEM OF NEW ENERGY
MICRO-GRID INCLUDING ENERGY-STORAGE LOAD HYBRID HVDC DIGITAL-ANALOG TEST SYSTEM
MULTI-FACTS DYNAMIC COORDINATION IN SMART GRID
2.2 ADVANCED POWER DELIVERY TECHNOLOGY AND ITS ELECTROMAGNETIC FUNDAMENTAL
This study focuses on the electromagnetic environment of substations, convert stations and ultra high voltage AC and DC transmission lines, with an aim to discover the characteristics of electromagnetic coupling from transmission lines, substations and converter stations to susceptive systems nearby, and to propose methods of suppressing the electromagnetic influence. The study also focuses on the electromagnetic field and its propagation of some key equipments such as converters, converter transformers, controlled reactors, controlled series compensators, gas-insulation lines, etc, so as to set up wide frequency electromagnetic models and time-domain nonlinear models. Furthermore, some interdisciplinary areas are falling into the research portfolio as well, namely, large-capacity GIL (gas insulated line) and the compact environmental-friendly delivery technology, novel sensing technology and fault diagnostics, establishment of the fault prognosis methodologies and systems for power equipment, the insulation properties and failure mechanisms of power equipment under complex electric fields, extraction of unique feature quantities as to identify the insulation destruction process, as well as development of the electrical breakdown models for insulating materials under complex electric fields.
MEASUREMENT TEST DISTRIBUTION OF ELECTROMAGNETIC WIDE FREQUENCY MODELS
FIELDS IN CONVERTING VALVE HALL
MODEL TEST OF BUILDINGS UNDER THE UHVDC TEST LINES 3D IONIZED ELECTRIC FIELD AROUND BUILDINGS
SPATIAL ION CURRENT AROUND TRANSMISSION LINES WITH 3 SUBCONDUCTORS IN DIFFERENT VOLTAGE
LINES ELECTRIC FIELD
MODEL TEST OF PASSIVE INTERFERENCE DUE TO TRANSMISSION LINES
PASSIVE INTERFERENCE ON TRANSMIT STATIONS DUE TO UHV AC TRANSMISSION LINES