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This paper presents a suitable sustainable standalone power system for an off-grid town in Western Australia. To reduce the percentage of the electricity generated by a diesel generator in this remote town, the considered sustainable system consists of wind turbines, a photovoltaic system and a battery storage system, on top of a diesel generator. The analysis first aims to define a suitable sustainable...
The wind energy generation, utilization and its grid penetration in electrical grid is increasing world wide. The wind generated power is always fluctuating due to its time varying nature and causing stability problem. This weak interconnection of wind generating source in the electrical network affect the power quality and reliability. The localized energy storages shall compensate the fluctuating...
The electrical energy production from renewable sources has gained considerably in importance in the last years. A meaningful possibility of energy generation from renewable sources is the use of wind energy. The wind energy generation is weather dependent and load independent. Therefore, it can have a certain unreliability, which can cause the power fluctuations into the system. A possible solution...
To reduce the impact of large output power fluctuations of a wind turbine generator (WTG) integrated in a power system, a battery energy storage system (BESS) is installed with the WTG. However, if a large battery is installed, the capital cost of the wind turbine system will increase. Hence, the smaller size of battery is preferable to reduce the capital cost and the battery should be utilized effectively...
Nowadays, a wind turbine generator (WTG) is required to provide control capabilities regarding an output power. Under this scenario, this paper presents a frequency control method by coordination control of the WTG and a battery using load estimation by a disturbance observer for isolated island. The load variation is reduced by the WTG using pitch angle control in low frequency domain and the battery...
This paper presents a frequency control method by coordination control of a wind turbine generator (WTG) and a battery using H∞ control theory. The output command of the WTG is based on wind speed conditions and the output is controlled by pitch angle control system using H∞ controller. H∞ control is also used in the output command system of the battery which is determined according to the frequency...
This paper deals with a DC-micro grid in an isolated island. The proposed method is composed of gearless wind power generation system, battery, and DC loads in DC distribution system. The battery can avoid DC over-voltages by absorbing the PMSG power during line-fault. In addition, the control schemes in this paper include the maximum power point tracking (MPPT) control and a pitch angle control for...
Wind turbine generation has been in operation for both on-site and commercial uses. However, one major obstruction of the wind turbine generation is its uncertainty. As known, the wind power is dependent on the cube of wind speed, which varies over time. To obtain the maximum wind power, variable-speed Wind Turbine Generators (WTGs) are operated. As a result, fluctuation of power output occurs. Inevitably,...
This paper presents a hybrid renewable energy system integrating a small wind turbine, photovoltaic panel coupled to a permanent exchange membrane fuel cell (PEMFC). The interconnection of the fuel cell with finite power source is going to improve the energizing performances of the system by solving the problems of fluctuation of renewable wind and photovoltaic powers sources.
This paper discusses in detail the design, installation and operation of an independent power system for a UHF repeater operated by the Canadian Broadcast Corporation. This remote, helicopter-access-only, site is located on Pigeon Mountain in Exshaw, Alberta, above the Trans-Canada Highway. At 9000 feet elevation with a 2000 foot cliff surrounding three sides this site experiences very high winids...
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