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POWER CONVERSION AND TRANSMISSION IN POWER SYSTEMS WITH LARGE-SCALE RENEWABLE ENERGY GENERATIONS
Written by:    Date by: 2014-06-05 ;Viewer:


    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

  • The ionized electric field due to ±800kV HVDC transmission lines over 500kV HVAC transmission lines

    THE CONFIGURATION OFTRANSMISSION    THE GROUND LEVEL IONIZED         ION CURRENT DENSITY

           LINES                                                    ELECTRIC FIELD


 

 


MODEL TEST OF PASSIVE INTERFERENCE DUE TO TRANSMISSION LINES

PASSIVE INTERFERENCE ON TRANSMIT STATIONS DUE TO UHV AC TRANSMISSION LINES