Energy Storage Auxiliary Frequency Modulation Control Strategy Considering ACE and SOC of Energy Storage

Gaojun Meng,Yao Wu,Feng Zhang,Yukun Sun,Qingqing Chang,Ling Su,Yufei Rao

doi:10.1109/access.2021.3058146

Gaojun Meng, Yao Wu + Show 5 more

Open Access

https://doi.org/10.1109/access.2021.3058146

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Journal: IEEE Access	Publication Date: Jan 1, 2021
Citations: 40	License type: CC BY 4.0

Affiliation: Nanjing Institute of Technology

Abstract

As more and more unconventional energy sources are being applied in the field of power generation, the frequency fluctuation of power system becomes more and more serious. The frequency modulation of thermal power unit has disadvantages such as long response time and slow climbing speed. Battery energy storage has gradually become a research hotspot in power system frequency modulation due to its quick response and flexible regulation. This article first introduced the control method based on the signal of ACE (Area Control Error), which is the basic way of secondary frequency modulation and analyzed the features of the basic control mode. Then it zoned the signal of ACE and SOC of the battery energy storage system. On this basis, different frequency modulation methods were proposed according to the requirements of frequency modulation and the characteristics of the output of different regions. In addition, the fuzzy controller is used to smooth the output of the energy storage system under the normal adjustment of the regional control deviation and the normal charging and discharging state of SOC. Finally, a two-region interconnection simulation system was established based on the MATLAB simulation platform, and the simulation results verified the effectiveness of the proposed control strategy.

Highlights

SPECIAL SECTION ON KEY ENABLING TECHNOLOGIES FOR PROSUMER ENERGY MANAGEMENTReceived January 15, 2021, accepted January 29, 2021, date of publication February 9, 2021, date of current version February 17, 2021
In the face of increasingly serious environmental pollution and energy shortage, an increasing number of new energy sources, such as wind power, photovoltaic and solar thermal, have been used in the field of power generation [1]–[4]
This paper proposed a control strategy of using energy storage system to assist frequency modulation based on fuzzy control considering ACE and SOC

Summary

SPECIAL SECTION ON KEY ENABLING TECHNOLOGIES FOR PROSUMER ENERGY MANAGEMENT

Received January 15, 2021, accepted January 29, 2021, date of publication February 9, 2021, date of current version February 17, 2021. GAOJUN MENG1, QINGQING CHANG 1, YUKUN SUN 2, YUFEI RAO 3, FENG ZHANG 1, YAO WU 1, AND LING SU 1

INTRODUCTION

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CONCLUSION