A Frequency Control Method for Islanded Microgrid Based on Feedforward and Feedback

DOI

10.2991/ifmca-16.2017.77How to use a DOI?

Keywords

Islanded microgrid; Frequency control; Feedforward and feedback control; New energy; Resources allocation

Abstract

In this paper, a new frequency control strategy is proposed for islanded microgrid. Due to characteristics of islanded microgrid, the load variation and the new energy disturbance can be predicted by the ultra-short-term prediction. By using feedforward control method, the load disturbance can be roughly adjusted in advance. However, load variation and new energy disturbance in islanded microgrid cannot be precisely predicted and there must be prediction error. Therefore, feedback control is used to eliminate prediction error. Specifically, considering characteristics of different units, wind turbines and diesel engines are used in feedforward control part, and energy storage systems in the feedback control part. Besides, this paper proposes an allocation method on feedforward and feedback resources, which can improve resources utilization to a certain extent. Simulation results show that the proposed control method can improve the frequency control effect for islanded microgrid.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Qiang Zhang
AU  - Kaifeng Zhang
AU  - Chunyu Chen
AU  - Kun Yuan
AU  - Xiang Xiao
PY  - 2017/03
DA  - 2017/03
TI  - A Frequency Control Method for Islanded Microgrid Based on Feedforward and Feedback
BT  - Proceedings of the 2016 International Forum on Mechanical, Control and Automation (IFMCA 2016)
PB  - Atlantis Press
SP  - 500
EP  - 509
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifmca-16.2017.77
DO  - 10.2991/ifmca-16.2017.77
ID  - Zhang2017/03
ER  -