Study on Coordinated Voltage Control for Distribution Line with High Penetration of Photovoltaic Generations using Fuel cells
To avoid the global warming, it is important to introduce photovoltaic cells in private residents. In Japan the government plans to introduce photovoltaic cells as much as 5.3GW by the year 2030. To achieve this we have to manage the stability of the electric power system. Especially the reverse power flow from the residents where the photovoltaic cells are installed may raise the voltage of the distribution lines. Japanese law regulates the limits of the voltage of lower voltage distribution line 101±6V and 202±10V. In case the photovoltaic cells may raise the voltage, they have to reduce the output power or have to be disconnected. To draw out maximum power from photovoltaic cells, it is effective to make use of “reactive power. First reactive power is produced from photovoltaic cells when they do not generate at maximum power. Sometimes such reactive power is not adequate to generate maximum power. Next reactive power from fuel cells which will widely introduced in residents in near future can be effective. By controlling a number of fuel cells via ICT(Information Communication Technology), fuel cells can control the voltage of lower voltage distribution line. In this paper, the authors evaluated the effectiveness of the reactive power which is produced by photovoltaic cells and fuel cells. To get adequate reactive power from fuel cells, it was studied to reduce active power of fuel cells. The authors studied how to keep the voltage of lower voltage distribution line normal by synthetically controlling active and reactive power of photovoltaic cells and fuel cells.
reactive power photovoltaic cells fuel cells reverse power flow voltage control
Shinsuke Tsujita Takao Shinji
Fundamental Technology Department, Tokyo Gas Co., Ltd., Kanagawa, 230-0045 Japan
国际会议
The International Conference on Electrical Engineering 2009(2009 电机工程国际会议)
沈阳
英文
1-3
2009-07-05（万方平台首次上网日期，不代表论文的发表时间）