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Enhancing Integration of Renewable Energy Resources in Power Grid Through Back to Back Converter

Ihsan Mizher Baht
Choosing effective method for penetrating renewable sources to power system grid is an important issue for economical operation of the system and controlling the system. Different electronic interface has been used to connect renewable sources to power system that have their corresponding advantages and drawbacks. Diode electronic interface for connecting renewable sources to power system is very economical but its main drawback is that it can’t be controlled. Thyristor electronic interface can overcome uncontrollability problem of diode, but it observes reactive power which destroys voltage profile of the system. This thesis mainly discusses effective method of connecting double fed induction generator wind turbine into power grid through Insulated Gate Bipolar transistor (IGBT). The work consists of 4 different procedures for connecting double fed induction generator wind turbine into grid has been evaluated based on grid voltage profile and power losses. Voltage profile and losses of every method is calculated through forward backward sweep load flow method. Wind turbine is connected into transmission system and distribution system both with back to back converter and without back to back converter. From aforementioned four methods of connecting wind turbine into gird optimum method is selected for further analysis. Based on monitoring of the system economic adjustment of dispatching generation units has been made according to loading condition of the system. A 14 bus power system is used for case study. For calculating losses of the system a MATLAB code based on forward backward load flow technique is written and it is applied on the system both in case on direct connection and with IGBT electronic interface. This code is also tested on an IEEE 15 buses and IEEE 33 buses power system.
Select Volume / Issues:
Year:
2019
Type of Publication:
Article
Keywords:
Iraq; Smart Link; Renewable Energy; Control Power Flow; Matlab
Journal:
IJECCE
Volume:
10
Number:
3
Pages:
103-111
Month:
May
ISSN:
2249-071X
Hits: 63

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