Author(s)

Shoyu Onuka^1*, Atsushi Umemura¹, Rion Takahashi¹, Junji Tamura¹, Atsushi Sakahara², Fumihito Tosaka², Ryosuke Nakamoto²

¹Department of Electrical and Electronic Engineering, Kitami Institute of Technology, Kitami, Japan.
²Hokkaido Electric Power Co., Inc., Sapporo, Japan.

Recently, introduction of renewable energy sources like wind power generation and photovoltaic power generation has been increasing from the viewpoint of environmental problems. However, renewable energy power supplies have unstable output due to the influence of weather conditions such as wind speed variations, which may cause fluctuations of voltage and frequency in the power system. This paper proposes fuzzy PD based virtual inertia control system to decrease frequency fluctuations in power system caused by fluctuating output of renewable energy sources. The proposed new method is based on the coordinated control of HVDC interconnection line and battery, and energy balancing control is also incorporated in it. Finally, it is concluded that the proposed system is very effective for suppressing the frequency fluctuations of the power system due to the large-scale wind power generation and solar power generation and also for keeping the energy balancing in the HVDC transmission line.

High Voltage Direct Current (HVDC) Transmission, Power System Frequency Control, Coordinated Control, Battery, Renewable Power, Energy Balancing

Onuka, S. , Umemura, A. , Takahashi, R. , Tamura, J. , Sakahara, A. , Tosaka, F. and Nakamoto, R. (2020) Frequency Control of Power System with Renewable Power Sources by HVDC Interconnection Line and Battery Considering Energy Balancing. Journal of Power and Energy Engineering, 8, 11-24. doi: 10.4236/jpee.2020.84002.