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- 摘要
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- 实验方案
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[IEEE 2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM) - Cuenca, Ecuador (2018.10.15-2018.10.19)] 2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM) - Renewable Energy Source P-V conected to the grid through Shunt Active Power Filter based in P-Q theory
摘要： This paper presents the design and simulation of an active power filter (APF) supported by a PV plant. The system can operate in three different modes: APF, APF+PV and APF+PV+Px, which means the system functions as APF extracting the necessary energy to compensate harmonics and unbalances entirely from the grid, the second mode means that this energy is extracted from the PV, and the last mode allows to use all the power available in the PV system to feed the load, support the APF and to export PV energy to the grid. The system includes a PV generator, a DC/DC converter controlled with MPPT, and a voltage source converter (VSC) acting as APF. P-Q Theory algorithm is used to control the APF. The system is simulated on MATLAB/Simscape Power Systems toolbox on three scenarios.
关键词： PQ theory,photovoltaic(PV),power quality,Active power filter
更新于2025-09-23 15:23:52
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Harmonic detection method based on adaptive noise cancellation and its application in photovoltaic - active power filter system
摘要： The adaptive harmonic detection method based on the adaptive noise cancellation principle has the advantages of strong adaptability and good robustness. However, when the step size of the algorithm is selected, there is a conflict between the convergence speed and the steady-state accuracy. To solve this problem, this paper proposes an improved variable step size adaptive harmonic detection method. The algorithm uses the sliding integrator to find the feedback that can truly reflect the tracking situation, and substitutes it into the step size iteration formula based on L2 norm to achieve the step size adjustment. In order to further verify the superiority and practicability of the improved algorithm, the algorithm is applied to the photovoltaic-active power filter (PV-APF) system, and simulation verification is performed in MATLAB. The simulation results show that under the same simulation conditions, the convergence speed of the improved algorithm is half a cycle faster than that of the traditional method, and the steady-state error is smaller. In the application of PV-APF system, under normal light, the dual functions of grid-connected photovoltaic system and harmonic compensation are realized. The total harmonic distortion (THD) of the system is 2.09%, which effectively improves the power quality of photovoltaic system.
关键词： Photovoltaic grid-connected,Adaptive noise cancellation,Harmonic detection,Active power filter,Photovoltaic-active power filter system
更新于2025-09-23 15:21:01
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[IEEE 2020 7th International Conference on Signal Processing and Integrated Networks (SPIN) - Noida, India (2020.2.27-2020.2.28)] 2020 7th International Conference on Signal Processing and Integrated Networks (SPIN) - Active Power Filter for Harmonic Mitigation of Power Quality Issues in Grid Integrated Photovoltaic Generation System
摘要： Single phase tied with Photovoltaic arrangement (PV) employed on perturbed & observed (P&O) maximum energy point tracking technique with shunt active power filter allied to a rectifier feed R-L nonlinear load. The traditional Perturbed & Observed technique maximum energy point tracking topology is applied to attained maximum output power from Photovoltaic array(PVA), Proportional Integral conventional controller with phase detector (PLL) (PD) phase synchronization are executed to produce reference current. It provide at control unit of pulse width modulation topology( PWM) is utilized in inverter to get steady output voltage. Self supported DC bus PWM converter is regulated from PV array. In proposed architecture is minimized total harmonic pollution existing in supply current owing to power electronic load is (PEL). Total current harmonic pollution (THDi) factor obtain better than compensated using dynamic filter shunt active power filter (SAPF) and power compensation. Hence, reactive power (KVAR) is delivered through system decrease and active power (KW) enhance. The suggested scheme has been implemented by way of MATLAB/SIMULINK 2015(a) environment.
关键词： Pulse width Modulated (PWM) Converter,Proportional Integral controller,Maximum Power Point Tracking (P & O) Scheme,Shunt Active Power Filter (SAPF),Photovoltaic Array (PVA)
更新于2025-09-23 15:21:01
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Voltage Quality Improvement Using Solar Photovoltaic System
摘要： Solar power and wind are the most promising distributed energy sources. The photovoltaic system has attracted significant attention in recent years. Although their benefits are numerous, they are known to create power quality issues, because of the power electronic converters they use. This paper investigates if there is a possibility to improve power quality only by connecting a solar photovoltaic system to the grid, and then gives results of on-site power quality measurements in the grid before and after the connection of the solar photovoltaic system.
关键词： Inverter,Active power filter,Voltage harmonics,Voltage unbalance,Voltage quality,Photovoltaic system
更新于2025-09-23 15:21:01
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[IEEE 2019 2nd International Conference on Power Energy, Environment and Intelligent Control (PEEIC) - Greater Noida, India (2019.10.18-2019.10.19)] 2019 2nd International Conference on Power Energy, Environment and Intelligent Control (PEEIC) - Power Quality Enhancement of Soft Computing FLC MPPT Based Standalone Photovoltaic System
摘要： Single phase system has been secured with Photovoltaic system based on Fuzzy Logic Control based perturbed & observed (P&O) maximum power point tracking phenomenon with active power filter (APF) connected to a nonlinear load. The conventional Perturbed & Observed algorithm is used to achieve maximum power output from Photovoltaic array, Proportional Integral controller with positive sequence detector phase locked loop(PLL) synchronization are implemented to generate reference current. It is emplyed to generate switching signal for VSI in hysteresis band current controlled (HBCC). DC link of PWM converter is controlled with switch controlled of VSI inverter. In proposed work minimize harmonic distortion present in source current due to power electronic based nonlinear load. Total current harmonic distortion (THD) is reduced by shunt active power factor and power factor improve after compensation reactive power supplied by system reduce and active power of system increase. The system designed with MATLAB/SIMULINK 2015(a) platform.
关键词： Shunt Active Power Filter (SAPF),Photovoltaic Array (PVA),Maximum Power Point Tracking (MPPT),PWM Converter,Boost Converter,Fuzzy logic Control (FLC),Proportional Integral controller (PI)
更新于2025-09-16 10:30:52
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[IEEE 2019 4th World Conference on Complex Systems (WCCS) - Ouarzazate, Morocco (2019.4.22-2019.4.25)] 2019 4th World Conference on Complex Systems (WCCS) - Cascade Nonlinear Control of Photovoltaic System Connected to Single Phase Half Bridge Shunt Active Power Filter
摘要： This paper addresses the problem of controlling the single-phase shunt active power the photovoltaic system through a half-bridge inverter and associated with non-linear loads. We seek the achievement of the two control objectives: i) compensation of the current harmonics and the reactive power absorbed by the nonlinear load in order to achieve power factor correction (PFC) and ii) regulation of the voltage across the PV system to guarantee the MPPT issue. To achieve the above control objectives, a two-loop cascaded nonlinear controller is developed using the backstepping design technique based on the averaged nonlinear model in the inner-loop and a filtered proportional-integral PI regulator with a well-known P&O algorithm in the outer-loop. The results are confirmed by simulations in Matlab\Simulink environment, which show that the proposed controller meets its objective.
关键词： shunt active power filter,averaging model,PI regulator,Backstepping approach,MPPT,PV system
更新于2025-09-16 10:30:52
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Fixed- and variable-frequency sliding mode controller–maximum power point tracking converter for two-stage grid-integrated photovoltaic system employing nonlinear loads with power quality improvement features
摘要： This article presents a reliable and efficient photovoltaic sliding mode voltage-controlled maximum power point tracking DC-DC converter–active power filter integration system to supply real power to grid. This integrated active power filter system performs power quality enhancement features to compensate current harmonics to make distortion-free grid supply current and reactive power employing nonlinear loads. The proposed proportional–integral–derivative–based sliding mode controller is designed with fixed-frequency pulse-width modulation based on equivalent control approach. The main objective of this paper is to design a photovoltaic system with a new sliding surface to force the photovoltaic voltage to follow the reference maximum power point voltage with the alleviation of slow transient response and disadvantages of chattering effects of variable-frequency hysteresis modulation sliding mode controller–maximum power point tracking. The perturbations caused by the uncertainties in climatic conditions and converter output bulk oscillations during grid integration are also mitigated. The features of the proposed photovoltaic–active power filter integration system are confirmed at different operating conditions through PSIM simulation software, and its performance is also compared with a conventional variable-frequency sliding mode-controlled maximum power point tracking. The obtained simulation and experimental results give good dynamic response under various operating conditions of environmental and local load conditions.
关键词： sliding mode controller,pulse-width modulation,photovoltaic,power quality,active power filter,Maximum power point tracking,high step-up DC-DC converter
更新于2025-09-12 10:27:22
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Design, development, and implementation of grid-connected solar photovoltaic power conversion system
摘要： In this paper, a detailed documentation revealing the design, development, and implementation aspects of grid-connected solar photovoltaic (SPV) power conversion system is presented. Since the inverter is considered as a key constituent of an SPV system, a laboratory developed three-phase four-legged (3P4L) inverter is employed to diminish the overall cost of the SPV system considerably. The multifunctional inverter controlled SPV system proposed in this work not only injects active power into the electric grid, but it also serves as an active power filter (APF) to provide various power quality (PQ) solutions. This typically includes source current harmonic attenuation, load reactive current mitigation, neutral current elimination, source current balancing, in addition to ensure unity power factor operation. A various hardware circuits including signal sensing circuit, signal conditioning circuit, pulse amplification and isolation circuit, and blanking circuit are fabricated and assembled to develop a complete laboratory prototype model. In addition, the voltage and current controllers, the synchronize reference frame theory (SRFT)-based approach, and the phase-locked loop (PLL) control algorithms are embedded in dSPACE 1104 control platform. Furthermore, an STM32F407VGT microcontroller is employed to implement the incremental conductance based maximum power point (MPP) tracking algorithm. The effectiveness of the developed SPV system is first simulated in MATLAB/Simulink software. In the second step, the efficacy of the proposed configuration is investigated under balanced and unbalanced nonlinear loads on a laboratory developed prototype.
关键词： three-phase four-legged (3P4L) inverter,active power filter (APF),power quality (PQ) solutions,Grid-connected SPV system,multifunctional inverter,DS1104 DSP of dSPACE
更新于2025-09-12 10:27:22
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Kalman filter variant intelligent control for power quality improvement in photovoltaic active power filter system
摘要： The increased usage of nonlinear loads in the distribution system network with deep integration of renewable energy sources imposes the need for advanced control to improve power quality. With the objective to attain desired sinusoidal voltage waveshape at the common utility point, unity power factor operation, and reduction in harmonics, a swarm intelligent enhanced dual extended Kalman filter (DEKF) control technique for improving the performance of shunt active power filter (SAPF) is proposed in this paper. A photovoltaic (PV) array is integrated at the DC‐bus which supplies the required load power thus reducing the grid power demand. A single sensor‐based control is used to track the maximum power from the two‐stage PV array. The enhancement of the SAPF performance requires proper tuning of parameters; constriction factor‐based particle swarm optimization (PSO) is adopted in this regard. The DEKF estimates both state and parameter from the nonlinear system for generating a reference signal. The performance of the proposed control algorithm is compared with the Extended Kalman filter (EKF)‐based PV‐SAPF system using MATLAB/Simulink. To verify the efficacy of the controller, an experimental PV‐SAPF prototype is developed in the laboratory and tested under balanced and unbalanced supply, dynamic load as well as varying irradiance conditions.
关键词： maximum power tracking,dual extended Kalman filter,particle swarm optimization,shunt active power filter,power quality,solar photovoltaic
更新于2025-09-11 14:15:04
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[IEEE 2018 International conference on computation of power, energy, Information and Communication (ICCPEIC) - Chennai, India (2018.3.28-2018.3.29)] 2018 Internat2018 International Conference on Computation of Power, Energy, Information and Communication (ICCPEIC)ional conference on computation of power, energy, Information and Communication (ICCPEIC) - Modified SEPIC Converter Based PV Inverter for Power Quality Improvement
摘要： Now a day the photovoltaic (PV) age is continuously notable, while require significantly more high-control quality. One PV generator providing to nonlinear burdens is wanted to be consolidated with a limit as an Active Power Filter (APF). In our errand, a three-arrange three-wire system, including a bare essential PV generator, modified single completed fundamental inductor converter (M-SEPIC) for high voltage change is sketched out. Furthermore, to separate greatest radiation control a most extreme power point following, calculation is utilized. Here a dc/air conditioning molding voltage source converter to go about as an Active power channel (APF), is proposed. The incite control speculation is utilized to design the PV-APF controller, which shows tried and true displays. Space vector direction (SVM) control system is used as a piece of the PV-APF controller for better execution.
关键词： instantaneous power theory,Active power filter (APF),renewable energy,photovoltaic (PV),quality of power
更新于2025-09-09 09:28:46