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(Free) Keynote Speech on Power Electronics and High – altitude Wind Energy Harvesting

IEEE PELS Malaysia Chapter will be organising The 3rd IEEE CENCON (CENCON 2017) at UTM Kuala Lumpur Campus on 30th October 2017 – 31st October 2017.  For this conference edition, we are honoured to have two expert in their respective field, Prof. F. Blaabjerg from Aalborg University and S. K. Panda from National University of Singapore.
Hence, we are offering LIMITED FREE SEAT for those who are interested.  The seats are open to academia, industry and research student.  The talk will be scheduled as follows:
Date: 30th October 2017 (Monday)
Time: 9.00 am – 10.30 am

Venue: Seminar Hall, Menara Razak, UTM KL

Please register your attendance by filling in the form https://goo.gl/forms/4JMxXYwVU4nBa0d23

Keynote Address 1

Prof. Frede Blaabjerg
Aalborg University, Aalborg, Denmark

 “Power Electronics – The Key Technology For Renewable Energy System Integration”

The energy paradigms in many countries (e.g., Germany and Denmark) have experienced a significant change from fossil-based resources to clean renewables (e.g., wind turbines and photovoltaics) in the past few decades. The scenario of highly penetrated renewable is going to be further enhanced– Denmark expects to be 100 percent fossil-free by 2050. Consequently, it is required that the production, distribution and use of the energy should be as technologically efficient as possible and incentives to save energy at the end-user should also be strengthened. In order to realize the transition smoothly and effectively, energy conversion systems, currently based on power electronics technology, will again play an essential role in this energy paradigm shift. Using highly efficient power electronics in power generation, power transmission/distribution and end-user application, together with advanced control solutions, can pave the way for renewable energies. In light of this, some of the most emerging renewable energies — , e.g., wind energy and photovoltaic, which by means of power electronics are changing character as a major part in the electricity generation —, are explored in this paper. Issues like technology development, implementation, power converter technologies, control of the systems, and synchronization are addressed. Special focuses are paid on the future trends in power electronics for those systems like how to lower the cost of energy and to develop emerging power devices and better reliability tool.

Keynote Address 2

Prof. Sanjib Kumar Panda

“High – altitude Wind Energy Harvesting”

Among various renewable energy sources, development of the wind power generating system has been extensive over the last two decades. The size of the turbine has increased by 10 fold from 10 m to 100 m to increase the generated electrical power. In order to increase power generated from the wind turbine, only size of wind turbine has been increased till date. However, high speed and streamlined wind enables higher power generation with a small size turbine at higher capacity factor. The wind speed increases with increase in the altitude from the earth’s surface. The mechanism of harvesting wind power from high altitude wind is less explored till date.
This talk would highlight an electrical system for a blimp/aerostat based High Altitude Wind Power (HAWP) generating system. Two different power generation and transmission mechanisms are proposed and their performance evaluation would be presented. A medium voltage AC generation and transmission based electrical system with aluminium power cable is found to be the optimal choice for generation and transmission of HAWP. In addition, variation in power-to-weight (P/W) ratio with respect to altitude and power rating of the HAWP generation system would also be presented and the optimal operating altitude is determined. The transmitted electrical power is interfaced to the load/grid using a suitable power conversion system (PCS) at the ground-based station. Two different PCSs and their control mechanisms are proposed and simulated. The proposed PCSs provide generation side maximum power-point tracking (MPPT) of the air-borne wind turbine, step-down of voltage and isolation operation of medium-voltage (MV) and low-voltage (LV) side, and active power control on the grid side. The proposed PCS for medium power rating consists of a three-level neutral point clamp (NPC) rectifier, an intermediate three-level NPC DC-DC converter, and a two-level inverter. On the other hand, for low power rating HAWP generating system, the proposed PCS consists of a three-level Vienna rectifier, a half-bridge DC-DC converter, and a two-level inverter. The generation-side and grid-side control mechanisms are also investigated and their performances are evaluated. Scaled-down laboratory prototypes are built and tested to validate the proposed control strategies. Experimental test results would be presented.

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