Load Compensator with an Energy Storage for a Grid Connected PV Based Active Generator

5th International Symposium on Hydrogen Energy, Renewable Energy and Materials

能源学;材料科学

Konara, K.M.S.Y.^1^2 ; Kolhe, M.L.^1 ; Sharma, Arvind^1

Faculty of Engineering and Science, University of Agder, PO Box 422, No 4604, Kristiansand, Norway^1

Faculty of Engineering, University of Ruhuna, Galle, Sri Lanka^2

关键词: Energy management strategies;    Greenhouse emissions;    Grid connected PV system;    Grid-connected photovoltaic system;    Instantaneous power;    Management capabilities;    Maximum Power Point Tracking;    Proposed architectures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/605/1/012009/pdf
DOI  :  10.1088/1757-899X/605/1/012009

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

At present, in order to build a sustainable economy with less greenhouse emission, the attention has been drawn towards the smart grid concept. In this context, grid connected photovoltaic (PV) systems play a major role. When it comes to grid connected PV systems, the intermittent nature of PV generation and the uncontrolled power injection may cause excess variations in the grid voltage, frequency and the power quality. Therefore, the concept of active generator with innovative energy management strategies is a good alternative with which the PV generated power can be injected to the grid in a controlled manner while achieving the output power quality, instantaneous power, balance, frequency control and voltage control. This work proposes an innovative architecture for a grid connected PV based active generator with multi sources; a PV array, battery and the grid supply which are connected to a common AC bus as well as it analyses the innovative load flow control strategy associated with the proposed architecture. To make sure an uninterruptable power supply to the load, PV arrays inject the generated power in maximum power point tracking mode and the battery compensates the power requirement in coordination with the grid while maintaining the frequency stability within the system. Therefore, this paper analyses the performance of the energy controller and the load management capability of the proposed system while achieving the frequency control.