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Resiliency oriented control of a smart microgrid with photovoltaic modules

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【论文推荐】爱沙尼亚塔林技术大学 桑贝特·米什拉等:具有光伏组件的智能微网弹性控制研究

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独立微电网可用的调节措施和能力有限。在这种背景下,本文提出了一种用于光伏模块的新数学模型以及用于高效能量提取的新控制技术。光伏组件采用单级转换方法将其与电网集成。使用了三相电压源转换器以获得最大的光伏发电功率。使用了最大功率点跟踪(MPPT)方案以获得特定辐照度下的最大功率。针对直流环节电压控制,提出了模糊逻辑控制和基于自适应网络的模糊推理系统。通过与光伏组件的标准功率-电压和电流-电压图的比较,验证了所提出的模型和控制方案。仿真结果表明,与MPPT系统相比,该方案在电网和孤岛模式下系统能够保持稳定。

Resiliency oriented control of a smart microgrid with photovoltaic modules

具有光伏组件的智能微网弹性控制研究

Sambeet Mishra1, Kristjan Peterson1, Tauno Hilimon1, Jelena Shuvalova1, Fushuan Wen1, Ivo Palu1

(Department of Electrical Power Engineering and Mechatronics Tallinn University of Technology)

Abstract

The resiliency of a standalone microgrid is of considerable issue because the available regulation measures and capabilities are limited. Given this background, this paper presented a new mathematical model for a detailed photovoltaic (PV) module and the application of new control techniques for efficient energy extraction. The PV module employs a single-stage conversion method to integrate it with the utility grid. For extraction the maximum power from PV and integrate it to power grid, a three-phase voltage source converter is used. For obtaining the maximum power at a particular irradiance a maximum power point tracking (MPPT) scheme is used. The fuzzy logic control and adaptive network-based fuzzy inference system are proposed for direct current (DC) link voltage control. The proposed model and control scheme are validated through a comparison with the standard power-voltage and current-voltage charts for a PV module. Simulation results demonstrate that the system stability can be maintained with the power grid and in the island mode, in contrast with the MPPT.

Fig.1   (a) Flowchart of MPPT with P&O algorithm (b) simulation model

Fig.2  Flowchart of the fuzzy logic algorithm [27]

Fig.3  Membership functions of error

Fig.4  Surface view of fuzzy input versus output functions

Fig.5  Membership functions generated for the input change in error (de) by ANFI

Fig.6  Inverter controller topology

Fig.7   Fuzzy inverter model

Fig.8   Working principle of ANFIS

Fig.9   Model of the Grid-connected PV array

Fig.10   Model of the PV cell

Fig.11  Boost converter topology

Fig.12   PV Module Topology

Fig.13    P–V characteristic of the PV module under constant temperature and differing irradiance

Fig.14    I–V characteristic of the PV module under constant temperature and differing irradiance (left) and datasheet I-V characteristic of the PV module under differing irradiance and constant temperature (right)

Fig.15   PV array power (left) and converter DC voltage (right)

Fig.16    Alternating voltage after the inverter

Fig.17    PV array power (left) and converter DC voltage (right)

Fig.18   AC voltage after inverter (with grid)

Fig.19   PV array power (left) and converter DC voltage (right) without grid when P&O and MPPT is used

Fig.20    AC voltage after inverter (without grid) with P&O and MPPT is used

Fig.21  PV array power (left) and converter DC voltage (right) when P&O and MPPT is used

本文引文信息

Mishra S, Peterson K, Hilimon T, Shuvalova J, Wen F, Palu I (2021) Resiliency oriented control of a smart microgrid with photovoltaic modules. Global Energy Interconnection, 4(5): 441-452

桑贝特·米什拉, 克里斯蒂安·彼得森, 陶诺·希利蒙,耶莲娜·舒瓦洛娃,文福栓,伊沃·帕卢 (2021) 具有光伏组件的智能微网弹性控制研究. 全球能源互联网(英文),4(5): 441-452

Biographies

Sambeet Mishra

Sambeet Mishra holds Bachelor, Master, and Ph.D. degrees all in power engineering. He     is currently a postdoctoral fellow at Tallinn University of Technology (TalTech). His research interests are focused on operations research and machine learning applications for the optimal planning of power and energy systems.

Kristjan Peterson

Kristjan Peterson received the diploma degree from Tallinn College of Engineering  in 2008 and the M.Sc. degree from Tallinn University of Technology (TalTech) in 2010. He is a Ph.D. student at  TalTech.  His fields of interest include microgrids, energy transfer between electric vehicles and utility networks. He is an author or co-author of 8 publications.

Tauno Hilimon

Tauno Hilimon received his bachelor’s and master’s degrees from Tallinn University of Technology (TalTech). He was working in the Estonian power generation industry and is now an energy efficiency expert at the Minis- try of Economic Affairs and Communications in the Estonian government.

Jelena Shuvalova

Jelena Shuvalova obtained her research master’s degree in 1999 and Ph.D. in 2004 from Tallinn University of Technology (TalTech). She  was  working at  TalTech as  a researcher and then a senior researcher. Currently, she is a senior lecturer. Her research fields include energy planning, energy policy, renewable energy, combined heat, and power production.

Fushuan Wen

Fushuan Wen received the B.E. and M.E. degrees from Tianjin University, Tianjin, China, in 1985 and 1988, respectively, and the Ph.D. degree from Zhejiang University, Hangzhou, China, in 1991, all in electrical engineering. He joined the faculty of Zhejiang University in 1991 and has been a full professor since 1997. He is also a part-time distinguished professor under Yusheng XUE Education Foundation in Hangzhou Dianzi University, Hangzhou, China. He had been a university distinguished professor, the deputy dean of the School of Electrical Engineering, and the director    of the Institute of Power Economics and Electricity Markets in South China University of Technology, Guangzhou, China, from 2005 to 2009. He is a professor in the Department of Electrical Power Engineering and Mechatronics, Tallinn University of Technology, taking leave from Zhejiang University. His research interests lie in power industry restructuring, power system alarm processing, fault diagnosis, and restoration strategies, as well as smart grids and electric vehicles.

Ivo Palu

Ivo Palu received a Ph.D. degree in electrical power engineering from Tallinn University of Technology (TalTech), Estonia,  in  2009. He has taught various courses, including wind energy and electrical materials. He is currently a Professor and the Head of the Department of Electrical Power Engineering and Mechatronics, TalTech. His main research

interests include wind turbine cooperation with thermal power plants and grid integration of new energy sources. He is a member of the Board of Estonian Society for Electrical Power Engineering and the Supervisory Board of Estonian Power Company Eesti Energia AS.

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