A Cost-Effective Single-Stage Inverter With Maximum Power Point Tracking

Chen, Yang; Smedley, K.M.

doi:10.1109/tpel.2004.833458

Cited by 266 publications

(97 citation statements)

References 6 publications

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“…The following approximations regarding the initial values of state parameters and at the start of the ON period of the th switching interval, represented by and , respectively, can be made (10) When switch is turned ON, the state equations governing the circuits in Fig. 2 are (11) Solving the differential (11) during the ON period 0 of the th switching interval using the initial condition (10), yields (12), shown at the bottom of the next page, where .…”

Section: Analysis Of the Proposed Configurationmentioning

confidence: 99%

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A Single-Stage Grid Connected Inverter Topology for Solar PV Systems With Maximum Power Point Tracking

Jain

Agarwal

2007

IEEE Trans. Power Electron.

545

183

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Abstract-This paper proposes a high performance, single-stage inverter topology for grid connected PV systems. The proposed configuration can not only boost the usually low photovoltaic (PV) array voltage, but can also convert the solar dc power into high quality ac power for feeding into the grid, while tracking the maximum power from the PV array. Total harmonic distortion of the current, fed into the grid, is restricted as per the IEEE-519 standard. The proposed topology has several desirable features such as better utilization of the PV array, higher efficiency, low cost and compact size. Further, due to the very nature of the proposed topology, the PV array appears as a floating source to the grid, thereby enhancing the overall safety of the system. A survey of the existing topologies, suitable for single-stage, grid connected PV applications, is carried out and a detailed comparison with the proposed topology is presented. A complete steady-state analysis, including the design procedure and expressions for peak device stresses, is included. Necessary condition on the modulation index " " for sinusoidal pulsewidth modulated control of the proposed inverter topology has also been derived for discontinuous conduction mode operation. All the analytical, simulation and experimental results are presented.

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Section: Analysis Of the Proposed Configurationmentioning

confidence: 99%

“…1) Using the conventional H-bridge inverter followed by a step-up transformer [8]. 2) Using an array with sufficiently large PV voltage, which may be realized using a string of series connected modules followed by an H-bridge inverter [9], [10]. While these options are feasible, they suffer from the following drawbacks.…”

mentioning

confidence: 99%

A Single-Stage Grid Connected Inverter Topology for Solar PV Systems With Maximum Power Point Tracking

Jain

Agarwal

2007

IEEE Trans. Power Electron.

545

183

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“…For applications, A CC-VSI can be used to transfer active power from a renewable energy source such as solar energy to the AC grid (grid-connected PV system), as well as to the loads [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Application of a CC-VSI for Active Filtering and Photovoltaic Energy Conversion with a 1-to-1 MPPT controller

Tumbelaka¹,

Miyatake²

2010

jte

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This paper focuses on the implementation of a three-phase four wire current-controlled Voltage Source Inverter (CC-VSI) as both PV energy extraction and power quality improvement. For power quality improvement, the CC-VSI works as a grid current-controller shunt active power filter. Then, the PV array supported by a Look-up Table type of a MPPT controller is coupled to the DC bus of the CC-VSI. The output of MPPT controller is a DC voltage that determines the DC-bus voltage according to the PV maximum power. The computer simulation results show that the system works properly in steady state and dynamic condition.

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“…As described in earlier publications, they can be realized by a two stage topology [1,2] or as a one stage system [3][4][5]. When isolation is required, it can be accomplished by introducing a line frequency transformer between the output filter and the grid utility [6].…”

Section: Introductionmentioning

confidence: 99%

“…SYSTEM DESCRIPTION The proposed inverter comprises two H bridges Q 1 -Q 4 and Q 5 -Q 8 ( Fig. 1), a main inductor L in , high frequency isolating transformer T1, and output rectifier D 1 -D 4 .…”

Section: Introductionmentioning

confidence: 99%

Current sourcing isolated grid connected inverter

Zeltser

Ben‐Yaakov

2010

Proceedings of 2010 IEEE International Symposium on Circuits and Systems

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This study proposes a soft switched Output Current Sourcing (OCS) grid connected inverter that applies a high frequency isolation transformer. Current sourcing at the output implies that, ideally, the injected current will be independent of the load voltage. The current injected to the line is controlled by varying the switching frequency and PWM at low currents. The system does not require the sensing of the output current or even the line voltage -except for synchronization. This is in contrast to the conventional voltage sourcing inverters where the small disturbance at the line voltage may lead to current run away and consequently a tight current feedback loop must be applied.The proposed topology and several proposed control approaches were analyzed and verified by simulations and by experiments. The simulation and experimental results confirm the theoretical analysis and show that the proposed inverter can be operated with no sensing of the line current or voltage except for synchronization.

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A Cost-Effective Single-Stage Inverter With Maximum Power Point Tracking

Cited by 266 publications

References 6 publications

A Single-Stage Grid Connected Inverter Topology for Solar PV Systems With Maximum Power Point Tracking

A Single-Stage Grid Connected Inverter Topology for Solar PV Systems With Maximum Power Point Tracking

Application of a CC-VSI for Active Filtering and Photovoltaic Energy Conversion with a 1-to-1 MPPT controller

Current sourcing isolated grid connected inverter

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