Chopper-Based Control Circuit for BESS Integration in Solar PV Grids

Rajanna, B.; Kumar, Mohit

doi:10.3390/en14061530

Cited by 3 publications

(5 citation statements)

References 33 publications

(33 reference statements)

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“…However, in (Rajanna and Kumar, 2021), the authors proposed a novel configuration with a lower number of switches for 6/4 pole machines. The proposed converter was modified to operate on an 8/6 pole machine, and its configuration is shown in Figure 4 The proposed converter consists of only five switches, making it a costeffective converter compared to the conventional one.…”

Section: Figurementioning

confidence: 99%

“…The cost and size of such a system is bound to increase The utilization of Grey Wolf Optimization (Mohanty et al, 2017) and Genetic Algorithm (Malla and N Bhende, 2014) for MPPT has been observed to improve the efficiency and accuracy of MPPT. Novel circuit topologies and machines (Manne et al, 2020;Rajanna and Kumar, 2021) have been proposed to reduce the complexity of the interface. Reduced switching converters (Kolluru and Kumar, 2021) and the integration of DC stages (Shanthi et al, 2021) have been proven to reduce overall components.…”

Section: Introductionmentioning

confidence: 99%

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A novel controller for PV-fed water pumping optimization system driven by an 8/6 pole SRM with asymmetrical converter

et al. 2023

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A locally installed photovoltaic (PV)-powered motor pump is a viable solution for a water pumping system (WPS) in rural locations. In this study, a single-stage, PV-fed, SRM-powered WPS was investigated and realized using a speed sensorless sliding mode controller (SMC)-based direct torque control (DTC). As a result, no additional DC-DC converter was required for maximum power absorption from the PV source. By utilizing a novel high-side switch asymmetric converter with a hybrid Perturb and Observe–Grey Wolf optimization (POGWO) method integrated with a DC-link voltage controller, an efficient single-stage conversion was achieved. The robustness of the proposed integrated control is presented by comparing it with a Genetic Algorithm and Particle Swarm Optimization (PSO). Extensive results using MATLAB SIMULINK are shown to validate the proposed system in both steady-state and transient conditions for various partial shading conditions.

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Section: Figurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A novel controller for PV-fed water pumping optimization system driven by an 8/6 pole SRM with asymmetrical converter

et al. 2023

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“…The modeling of a lithium-ion battery involves the use of an electrical equivalent circuit in order to effectively map the various dynamics of this chemistry [25]. A simple internal resistance-based model is widely used for battery voltage, current, and SoC performance [26,27]. The simple lithium-ion/LFP model [28] adopted here is illustrated in Figure 2.…”

Section: Li-ion Batterymentioning

confidence: 99%

“…internal resistance-based model is widely used for battery voltage, current, and SoC performance [26,27]. The simple lithium-ion/LFP model [28] adopted here is illustrated in Figure 2.…”

Section: Li-ion Batterymentioning

confidence: 99%

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Performance Assessment of a Grid-Connected Two-Stage Bidirectional Converter for a Combined PV–Battery Energy Storage System

et al. 2023

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This paper presents a comprehensive performance assessment of a two-stage power electronic (PE) converter for interfacing the grid of a lithium-ion battery energy storage system (Li-BESS) for building-integrated PV (BIPV) applications. A performance assessment of the control system was conducted for the two-stage PE interface with a common DC-link, which consisted of a bi-directional boost converter with a cascaded PI controller and an AC/DC converter with proportional-integral (PI) and proportional-resonant (PR) controllers. The assessment covered loss analysis and useful lifetime estimation for the 10 kW PE interface with a wide-bandgap SiC power MOSFET at different loads for both the charging and discharging modes of a 50 kWh lithium-ion battery system. Additionally, a performance comparison of various switching frequencies was performed. It was observed that the system was stable up to a switching frequency of 30 kHz, and that increasing the switching frequency improved the responsiveness of the converter by decreasing the settling time; however, there were diminishing returns at higher switching frequencies. To obtain a proper balance between responsiveness and lower loss, a switching frequency of 10 kHz was selected.

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Automatic verification method of relay protection equipment setting value combining cell image gray enhancement and AI recognition

Sun,

Sheng,

Mao

et al. 2024

IFS

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In order to solve the problems of tedious, insufficient manpower, low efficiency, and easy to cause human errors in the verification of relay protection equipment settings with the development of the power grid, an automatic verification method of relay protection equipment settings combining cell image gray enhancement and AI recognition is studied. In this method, Gaussian mixture and particle swarm algorithm are used to enhance the gray level of the original image captured, and the binary method is used to further denoise the image; The histogram is used to segment the cells in the denoised constant value image one by one; The OCR technology in AI technology uses the maximum width backtracking segmentation algorithm to segment a coherent text in a cell into multiple single words, and collects the 13 dimensional characteristics of the text to be detected to compare with the text in the database. The text with the smallest error is the detected text, which completes the text extraction in the cell; Store the extracted text data in the database, check the data in the notification constant value sheet and the device constant value sheet, and give an abnormal prompt of different data. The experimental results show that the image pre processed by this method is clear, the fixed value single cell segmentation is accurate, and the OCR text extraction efficiency is high. Through a large number of data experiments, the final verification accuracy can reach 99.8% .

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Chopper-Based Control Circuit for BESS Integration in Solar PV Grids

Cited by 3 publications

References 33 publications

A novel controller for PV-fed water pumping optimization system driven by an 8/6 pole SRM with asymmetrical converter

A novel controller for PV-fed water pumping optimization system driven by an 8/6 pole SRM with asymmetrical converter

Performance Assessment of a Grid-Connected Two-Stage Bidirectional Converter for a Combined PV–Battery Energy Storage System

Automatic verification method of relay protection equipment setting value combining cell image gray enhancement and AI recognition

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