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Maximum Power Point Tracking Technology for pv systems: Current Status and Perspectives

Energy Engineering 2024年第8期121卷 2009-2022页

作者： Bo Yang Rui Xie Zhengxun Guo Faculty of Electric Power Engineering Kunming University of Science and TechnologyKunming650500China Intelligent Electric Power Grid Key Laboratory of Sichuan Province Chengdu610065China Foshan Graduate School of Innovation Northeastern UniversityFoshan528311China College of Information Science and Engineering Northeastern UniversityShenyang110819China

Maximum power point tracking(MPPT)technology plays a key role in improving the energy conversion efficiency of photovoltaic(pv)systems,especially when multiple local maximum power points(LMPPs)occur under partial shading conditions(PSC).It is necessary to modify the operating point efficiently and accurately with the help of MPPT technology to maximize the collected *** though a lot of research has been carried out and impressive progress achieved for MPPT technology,it still faces some challenges and ***,the mathematical model established for pv cells is not precise ***,the existing algorithms are often optimized for specific conditions and lack comprehensive adaptability to the actual operating ***,a single algorithm may not be able to give full play to its *** the end,the selection criteria for choosing the suitable MPPT algorithm/converter combination to achieve better performance in a given scenario is very ***,this paper systematically discusses the current research status and challenges faced by pv MPPT technology around the three aspects of MPPT models,algorithms,and hardware *** in-depth thinking and discussion,it also puts forward positive perspectives on future development,and five forward-looking solutions to improve the performance of pv systems MPPT are suggested.

关键词： pv systems MPPT partial shading condition DC-DC converter

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A Simulation Analysis on the Effect of Islanding Protection under Clustered Installation of Many pv systems

A Simulation Analysis on the Effect of Islanding Protection ...

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第十五届国际光伏科学与工程大会

作者： Shuichi SHIBATA Kiyoshi Y.TAKIGAWA Hiroyuki SUGIHARA Electric Power Engineering systems Co. Ltd. Seijou 6-16-3 Setagaya-ku Tokyo 157-0066 Japan Electric Power Engineering systems Co. Ltd. Seijou 6-16-3 Setagaya-ku Tokyo 157-0066 Japan Kandenko Co. Ltd

＜正＞ To clear the details of dangerous islanding phenomena and the effects of protection under clustered installation of a lot of pv systems within a restricted area of utility grid, a new analysis method based on the Y-method was developed and the validity was verified. As a result, it was confirmed that the new method has a capability to expand to the large-scale clustered installation model including up to 400 pv systems on the utility grid. In addition, the validity of analyzed results was verified by comparing with the results of conventional Electro Magnetic Transient Program （EMTP） analysis.

关键词： Islanding Protection Clustered Installation pv systems Y-method Analysis EMTP

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Rooftop photovoltaic （pv） halls： Achieving economic energy demand systems for industrial benefit via lowering

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Frontiers of Architectural Research 2012年第4期1卷 326-333页

作者： Bruno Lee Marija Trcka Jan L.M. Hensen Materials innovation institute (M2i) Delft 2628 The Netherlands Department of the Built Environment Eindhoven University of Technology (TU/e) Eindhoven 5612 AZ The Netherlands

Industrial hails are characterized with their retatively high roof-to-floor ratio, which facilitates ready deployment of renewable energy generation, such as photovoltaic （pv） systems, on the rooftop. To promote deployment of renewable energy generation, feed-in tariff （FIT） higher than the electricity rate is available in many countries to subsidize the capital investment. FIT comes in different forms. For net FIT, in order to maximize the economic benefit, surplus electridty generation at each hour is desirable. One way to achieve surplus electricity generation is by increasing generation capacity, which is synonymous to higher capital investment. In fact, surplus electricity generation can also be achieved by lowering the energy demand of the building. This particularly the case for industrial hatls, which are usually subject to high energy demand for space conditioning in order to remove the excess heat gain due to the many power-intensive processes. Building energy performance simulation toots can be used to explore the different building design options that could lower the energy demand. In this paper, single-objective optimization on investment return will be deployed to study the cost effectiveness among different options in lowering energv demand. It Will-be demonstrated with a case study of a warehouse.

关键词： Industrial halls Photovoltaic pv systems Cost-benefit analysis Energy performancesimulation Optimization Energy demand

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Research on integrated modeling method and maximum power point tracking control of photovoltaic systems 25th

Research on integrated modeling method and maximum power poi...

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第25届中国控制与决策会议

作者： Shaowu Li Xianwen Gao Yuchang Feng Nan Hu School of Information Engineering Hubei Institute for Nationalities College of Information Science and Engineering Northeastern university

ISBN: (纸本)9781467355339

To improve the energy sources efficiency, maximum power point tracking （MPPT） is usually used in the control of photovoltaic （pv） systems and is implemented by the buck converter, the boost converter and the buck-boost converter. In this article, through studying deeply the output current-voltage（V-I） characteristic of solar photovoltaic and the mathematic model of three basic DC/DC converters, an integrated modeling method interpreting the theoretical relationship between the output power and the control signal has been proposed by using MATALB software. After building the integrated model, the ranges of output loads of pv MPPT systems with the three different DC/DC converter have been studied respectively. Finally, the three integrated MATLAB models have been built and the experimental studies have been conducted respectively. The results of simulation experiments have shown the feasibility, availability and convenience of research on MPPT control of pv systems by using this integrated modeling method.

关键词： MATLAB pv systems integrated modeling method MPPT control DC/DC converter

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