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- 摘要
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- 实验方案
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[IEEE 2018 International Conference on Power, Energy, Control and Transmission Systems (ICPECTS) - Chennai (2018.2.22-2018.2.23)] 2018 International Conference on Power, Energy, Control and Transmission Systems (ICPECTS) - Design and Hardware Implementation of Self Lift Negative Output Luo Converter Using MPPT for PV Applications
摘要： The design and analysis of self lift N/O luo converter is discussed in this paper. The incremental conductance mppt extracts the maximum power from PV panel and transfers to the load. The PV panel is designed by using equivalent circuit of PV cell. The output obtained from the solar panel contains more ripples. The ripples will produce more fluctuations. By using self lift negative output luo converter the unregulated output will be conveted into regulated voltage and stepped up to the higher voltage. For obtaining simulation results Matlab software is used.
关键词： Incremental conductance (IncCond) Maximum Power Point Tracking (MPPT) algorithm,self lift negative output luo converter,Photovoltaic system
更新于2025-09-23 15:23:52
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[IEEE 2018 IEEE International Students' Conference on Electrical, Electronics and Computer Science (SCEECS) - Bhopal, India (2018.2.24-2018.2.25)] 2018 IEEE International Students' Conference on Electrical, Electronics and Computer Science (SCEECS) - A Five –level PWM Inverter for Hybrid PV/Fuel Cell/Battery Standalone power System
摘要： Renewable energy sources (RES) based generation has emerged as one of the best option due to global environmental concerns, especially for off-grid load locations like islands, mountains, etc., where diesel generators are main source of power generation. This paper presents a case study of an efficient photovoltaic (PV) generation integrated with multilevel inverter to ensure regulated power at user end. Perturb and observe (PO) algorithm based maximum power point tracking (MPPT) has been used to track maximum power for PV applications. However in PV based power generation, control problem arises due to large variation of irradiance round the clock. This problem can be overcome by hybrid PV generation system, i.e., application of secondary power source as battery and fuel cell integrated with PV generation unit. The DC output of standalone hybrid PV-SOFC-Battery generation system is inverted by a single-phase multilevel converter. This output of developed standalone hybrid PV-SOFC-Battery generation system is used to supply the single-phase load. This inverter offers less THD which is compared with three level inverter.
关键词： Battery,Hybrid Power System,Photovoltaic system,Fuel cell,MPPT
更新于2025-09-23 15:23:52
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Coordinated control of MPPT and voltage regulation using single-stage high gain DC–DC converter in a grid-connected PV system
摘要： In general, grid-connected PV system uses two stages of DC-DC converter to accomplish Maximum Power Point Tracking (MPPT) and DC voltage regulation. In order to overcome the two stage conversion, a single stage high gain DC-DC converter is presented in this paper. The operation of three switches with two different duty ratio is the main advantage of this converter to accomplish the coordinated control of MPPT and DC voltage regulation. This coordinated control also helps to provide constant DC voltage to the DC loads though the inverter is disconnected from the DC bus. A 1KW grid-connected PV system with the proposed DC-DC converter is developed and is validated using OP4500 Real-Time test platform. In addition, a decoupled control strategy with fractional order proportional-integral (FOPI) controller is implemented at the inverter end. Also, the reactive power compensation, harmonic reduction (less than 5% as per the IEEE 519 standard) and the grid power factor close to unity is obtained and the results are validated using the real-time simulator.
关键词： Solar photovoltaics,LCL filter,Coordinated control of MPPT and voltage regulation,High gain DC-DC converter,Grid integration and power quality
更新于2025-09-23 15:23:52
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Performance Analysis of Maximum Power Point Tracking Algorithms Under Varying Irradiation
摘要： Photovoltaic (PV) system is one of the reliable alternative sources of energy and its contribution in energy sector is growing rapidly. The performance of PV system depends upon the solar insolation, which will be varying throughout the day, season and year. The biggest challenge is to obtain the maximum power from PV array at varying insolation levels. The maximum power point tracking (MPPT) controller, in association with tracking algorithm will act as a principal element in driving the PV system at maximum power point (MPP). In this paper, the simulation model has been developed and the results were compared for perturb and observe, incremental conductance, extremum seeking control and fuzzy logic controller based MPPT algorithms at different irradiation levels on a 10.2 kW PV array. The results obtained were analysed in terms of convergence rate and their efficiency to track the MPP.
关键词： perturb and observe,fuzzy logic controller,scalar gradient extremum seeking control,Photovoltaic system,incremental conductance,MPPT algorithms
更新于2025-09-23 15:23:52
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[IEEE 2018 2nd IEEE Conference on Energy Internet and Energy System Integration (EI2) - Beijing, China (2018.10.20-2018.10.22)] 2018 2nd IEEE Conference on Energy Internet and Energy System Integration (EI2) - Design and Implementation of Surge Protective Device for Solar Panels
摘要： Researchers for decades have utilized solar radiation as a sustainable renewable energy source. In this regard, Photovoltaic (PV) panels are satisfying the production of green energy and clean power. Frequently, these panels need to install on rooftops outdoor fields for maximum sun light feeding, to electricity. However, such PV systems installations are prone to direct or indirect lightning strikes. Herein, an impulse generator is designed to produce 750 V pulses for low voltage side to test the validity of our proposed surge protective device (SPD) as type-2. Moreover, the impulse generator provides 1.2/50μs and 8/20μs normalized voltage and current pulses, respectively. This approach controls the over-voltage caused by indirect lightening and thus protect solar panel systems. Furthermore, in the design of SPD, different components such as gas-discharge tube, transient voltage suppresser, metal oxide Varistor and Zener diodes are used to manage the impulse voltage at acceptable level. These results further highlighting the validity of implemented hardware.
关键词： MPPT,Photovoltaic panels,smart grid,Indirect lightning,Surge protective device
更新于2025-09-23 15:23:52
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[IEEE 2018 International Conference on Control, Power, Communication and Computing Technologies (ICCPCCT) - Kannur,Kerala, India (2018.3.23-2018.3.24)] 2018 International Conference on Control, Power, Communication and Computing Technologies (ICCPCCT) - MPPT Based SEPIC Converter With Voltage Doubler Cell For PV Systems
摘要： This article introduces “MPPT based SEPIC converter with voltage doubler cell for PV systems”. The primary aim of this study is to efficient energy conversion by utilizing SEPIC converter. The SEPIC converter accomplishes requirements like 1) Large transformation ratio with lesser number of elements. 2) Minimization of heavy stresses across switch. The description of operating principle of analysis is expressed within this article. The PV modeling along with MPPT algorithm and SEPIC converter for 250W are simulated in the MATLAB Simulink.
关键词： Maximum power point tracking (MPPT),Voltage doubler cell,SEPIC converter,Photovoltaic systems
更新于2025-09-23 15:23:52
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[IEEE 2018 International Conference on Control, Power, Communication and Computing Technologies (ICCPCCT) - Kannur,Kerala, India (2018.3.23-2018.3.24)] 2018 International Conference on Control, Power, Communication and Computing Technologies (ICCPCCT) - Four Switch Three-Phase Inverter Fed Induction Motor for Economical and Efficient Stand Alone Solar Water Pump
摘要： Induction motors are commonly used in industries due to its reduced cost and minimum maintenance. In this proposed system induction motor is used for the purpose of solar based water pumping application. As the energy consumption is increasing, the energy generated is alone is not able to supply the entire load requirement. Among the available renewable energy sources, solar energy is the leading one. The work proposes a three-phase four-switch inverter for photovoltaic (PV) water pumping or treatment systems. The use of batteries can be avoided, since the converter used in this proposed work is two inductor boost converter. By considering the economic factor and life span of the device, electro-chemical storage elements are avoided. Also an effective intelligent hill climbing algorithmis used to extract maximum power from PV cell. The use of a three- phase induction motor is a better solution to the dc motor for water pumping application.
关键词： MPPT,photovoltaic (PV) power systems,Induction motor,three-phase four switch inverter,two-inductor boost converter
更新于2025-09-23 15:23:52
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[IEEE 2018 7th International Conference on Renewable Energy Research and Applications (ICRERA) - Paris, France (2018.10.14-2018.10.17)] 2018 7th International Conference on Renewable Energy Research and Applications (ICRERA) - Performance-Improved Maximum Power Point Tracking Control for PV System
摘要： Dc distribution systems are gaining attracted because of expanding the utilization of solar photovoltaic (PV) power. In such a situation, the design of the maximum power point tracking (MPPT) controllers should consider not only varying solar irradiance but also the dc bus voltage fluctuation. The purpose of this paper is to present a performance-improved MPPT controller using a derivative control to a PV panel voltage. The proposed method provides better performances than an existing reported method which uses the derivative control to a reactor current of a dc-dc converter. It is verified that the proposed method obtains quick responses to the rapid change of solar irradiance and dc bus voltage compared to conventional methods.
关键词： dc distribution system,dynamic response,PV system,maximum power point tracking (MPPT),dc-dc converter
更新于2025-09-23 15:23:52
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Grid Interactive Single Stage Solar Powered Water Pumping System Utilizing Improved Control Technique
摘要： This paper proposes a single stage grid interactive solar powered switched reluctance motor (SRM) driven water pumping system with an efficient control technique. The control of proposed system provides the proficient maximum power point technique (MPPT) tracking and motor drive control with bidirectional power flow between the photovoltaic (PV) array and single phase grid. It has harmonics components elimination, improved dynamic performance and a DC offset rejection capability compared to other control. A PV feed-forward term is also incorporated in developed control to enhance the dynamic performance of the system and to minimize the size of DC link capacitor with improved MPPT performance. The novel scheme of fundamental switching of SRM drive over its maximum operational time (when the grid is present) makes system efficient and reliable. An improved perturb and observe (P&O) based maximum power point tracking (MPPT) algorithm is used in this system to minimize the undesirable losses in a PV array specially under varying insolation levels. The proposed control is tested on a developed prototype and its suitability is authenticated through simulated and test results under various conditions.
关键词： MPPT,Bidirectional Power Flow,Water Pump,Switched Reluctance Motor,VSC,PV Array,Power Quality
更新于2025-09-23 15:23:52
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Analysis of Nonlinear Dynamics of a Quadratic Boost Converter Used for Maximum Power Point Tracking in a Grid-Interlinked PV System
摘要： In this paper, the nonlinear dynamics of a PV-fed high-voltage-gain single-switch quadratic boost converter loaded by a grid-interlinked DC-AC inverter is explored in its parameter space. The control of the input port of the converter is designed using a resistive control approach ensuring stability at the slow time-scale. However, time-domain simulations, performed on a full-order circuit-level switched model implemented in PSIM c software, show that at relatively high irradiance levels, the system may exhibit undesired subharmonic instabilities at the fast time-scale. A model of the system is derived, and a closed-form expression is used for locating the subharmonic instability boundary in terms of parameters of different nature. The theoretical results are in remarkable agreement with the numerical simulations and experimental measurements using a laboratory prototype. The modeling method proposed and the results obtained can help in guiding the design of power conditioning converters for solar PV systems, as well as other similar structures for energy conversion systems.
关键词： subharmonic oscillations,DC-DC converters,maximum power point tracking (MPPT),nonlinear dynamics,photovoltaic (PV),quadratic boost
更新于2025-09-23 15:23:52