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Forecast of Power Generation for Grid-Connected Photo-voltaic System Based on Grey Theory and Verification Model
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作者 Ying-zi Li Jin-cang Niu Li Li 《Energy and Power Engineering》 2013年第4期177-181,共5页
Being photovoltaic power generation affected by radiation strength, wind speed, clouds cover and environment temperature, the generating in each moment is fluctuating. The operational characteristics of grid-connected... Being photovoltaic power generation affected by radiation strength, wind speed, clouds cover and environment temperature, the generating in each moment is fluctuating. The operational characteristics of grid-connected PV systems are coincided with gray theory application conditions. A gray theory model has been applied in short-term forecast of grid-connected photovoltaic system. The verification model of the probability of small error will help to check the accuracy of the gray forecast results. The calculated result shows that the ?model accuracy has been greatly enhanced. 展开更多
关键词 FORECAST of power generation grid-connected photovoltaic SYSTEM Data DISCRETIZATION GREEDY Algorithm Continuous Attributes ROUGH Sets
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A Simulation Research on the Grid-Connected Control Technology of Single-Phase Inverters Based on MATLAB
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作者 Jinjie Chen 《Journal of Electronic Research and Application》 2022年第4期7-12,共6页
This paper primarily discusses the main circuit of single-phase inverter circuits.It begins by introducing the research context and the significance of the subject,then discusses the topology of grid-connected single-... This paper primarily discusses the main circuit of single-phase inverter circuits.It begins by introducing the research context and the significance of the subject,then discusses the topology of grid-connected single-phase inverter circuits,continues by discussing the control strategy for grid-connected single-phase inverter circuits,realizes a sinusoidal pulse width modulation(SPWM)signal generation circuit and an inverse control algorithm program,and finally ensures good output waveform and fast dynamic response.In view of the hysteresis feature of the grid voltage’s synchronous signal sampling circuit,the acquisition function in digital signal processing(DSP)control chips is applied,and the reasons for the hysteresis phenomenon are thoroughly investigated.The reliability of the SPWM control algorithm is revealed through the results. 展开更多
关键词 Solar energy photovoltaic power generation grid-connected inverter circuit MATLAB simulation
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Application of Power Electronics Converters in Renewable Energy
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作者 Tao Cheng 《Journal of Electronic Research and Application》 2024年第4期101-107,共7页
Against the backdrop of global energy shortages and increasingly severe environmental pollution,renewable energy is gradually becoming a significant direction for future energy development.Power electronics converters... Against the backdrop of global energy shortages and increasingly severe environmental pollution,renewable energy is gradually becoming a significant direction for future energy development.Power electronics converters,as the core technology for energy conversion and control,play a crucial role in enhancing the efficiency and stability of renewable energy systems.This paper explores the basic principles and functions of power electronics converters and their specific applications in photovoltaic power generation,wind power generation,and energy storage systems.Additionally,it analyzes the current innovations in high-efficiency energy conversion,multilevel conversion technology,and the application of new materials and devices.By studying these technologies,the aim is to promote the widespread application of power electronics converters in renewable energy systems and provide theoretical and technical support for achieving sustainable energy development. 展开更多
关键词 power electronics converters Renewable energy photovoltaic power generation Wind power generation Energy storage systems High-efficiency energy conversion Multilevel conversion New materials New devices
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