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Relevant bibliographies by topics / HERIC transformerless inverter

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Academic literature on the topic 'HERIC transformerless inverter'

Author: Grafiati

Published: 5 June 2025

Last updated: 15 July 2025

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Journal articles on the topic "HERIC transformerless inverter"

1

Janardhan, G., N. N. V. Surendra Babu, and G. N. Srinivas. "Single phase transformerless inverter for grid connected photovoltaic system with reduced leakage current." Electrical Engineering & Electromechanics, no. 5 (September 6, 2022): 36–40. http://dx.doi.org/10.20998/2074-272x.2022.5.06.

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Introduction. Transformerless inverters are of vital importance in the field of grid connected solar photovoltaic systems offering higher efficiency than the conventional one. i.e., using transformer. General grid connected inverters are constituting of transformers requires more area besides the loss in them. Problem. Eliminating transformers can cause leakage current due to the variation of common mode voltage which in turn due to parasitic capacitance effect. Research literature in transformerless inverters has addressed the problems of common mode leakage current issues by offering the study of different inverter topologies like H4, H5, H6 and HERIC etc. utilizing variety of modulation strategies like unipolar, bipolar pulse width modulations. Goal. The paper significantly presents a new transformerless inverter topology, analyzes common mode voltage and leakage current behavior of the system. The simulation is carried out for comparing the leakage current profiles with other transformerless inverter topologies in literature. Novelty. This paper gives an impression of the efficient transformerless inverter for grid connected photovoltaic system. Results. The various inverter topologies full bridge with different pulse width modulation techniques are analyzed and to determine the common mode voltages and leakage currents.

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G., Janardhan, N. V. Surendra Babu N., and N. Srinivas G. "Single phase transformerless inverter for grid connected photovoltaic system with reduced leakage current." Electrical Engineering & Electromechanics, no. 5 (September 7, 2022): 36–40. https://doi.org/10.20998/2074-272X.2022.5.06.

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<strong><em>Introduction</em></strong><em>. Transformerless inverters are of vital importance in the field of grid connected solar photovoltaic systems offering higher efficiency than the conventional one. i.e., using transformer. General grid connected inverters are constituting of transformers requires more area besides the loss in them.  <strong>Problem</strong>. Eliminating transformers can cause leakage current due to the variation of common mode voltage which in turn due to parasitic capacitance effect. Research literature in transformerless inverters has addressed the problems of common mode leakage current issues by offering the study of different inverter topologies like H4, H5, H6 and HERIC etc. utilizing variety of modulation strategies like unipolar, bipolar pulse width modulations. <strong>Goal</strong>. The paper significantly presents a new transformerless inverter topology, analyzes common mode voltage and leakage current behavior of the system. The simulation is carried out for comparing the leakage current profiles with other transformerless inverter topologies in literature. <strong>Novelty</strong>. This paper gives an impression of the efficient transformerless inverter for grid connected photovoltaic system. <strong>Results</strong>. The various inverter topologies full bridge with different pulse width modulation techniques are analyzed and to determine the common mode voltages and leakage currents.</em>

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Hendawi, Essam. "A high performance grid connected PV system based on HERIC transformerless inverter." Indonesian Journal of Electrical Engineering and Computer Science 20, no. 2 (2020): 602. http://dx.doi.org/10.11591/ijeecs.v20.i2.pp602-612.

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<p>This paper presents an effective single phase grid connected photovoltaic PV system based on High Efficiency and Reliable Inverter Concept HERIC transformerless inverter. dc-dc boost converter controlled by incremental conductance IC maximum power point tracker MPPT is employed to achieve the maximum extraction power of the PV panels. Proportional integral PI controller controls the output voltage of the boost converter to meet the utility grid requirements. LCL filter is utilized to keep the inverter voltage very close to sinusoidal shape. Employing the HERIC transformerless inverter reduces significantly the ground leakage current beyond safe limits. Semiconductors losses are studied to investigate the efficiency of the proposed system at different insolation levels. Simulation results verify the high performance of the proposed system when considering leakage current and system efficiency.</p>

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Essam, Hendawi. "A high performance grid connected PV system based on HERIC transformerless inverter." Indonesian Journal of Electrical Engineering and Computer Science 20, no. 2 (2020): 602–12. https://doi.org/10.11591/ijeecs.v20.i2.pp602-612.

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This paper presents an effective single phase grid connected photovoltaic PV system based on High Efficiency and Reliable Inverter Concept HERIC transformerless inverter. dc-dc boost converter controlled by incremental conductance IC maximum power point tracker MPPT is employed to achieve the maximum extraction power of the PV panels. Proportional integral PI controller controls the output voltage of the boost converter to meet the utility grid requirements. LCL filter is utilized to keep the inverter voltage very close to sinusoidal shape. Employing the HERIC transformerless inverter reduces significantly the ground leakage current beyond safe limits. Semiconductors losses are studied to investigate the efficiency of the proposed system at different insolation levels. Simulation results verify the high performance of the proposed system when considering leakage current and system efficiency.

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Kołodziejski, Wojciech, Jacek Jasielski, Stanisław W. Kuta, Grzegorz Szerszeń, and Witold Machowski. "Review and comparison of methods for limiting leakage currents in single-phase transformerless PV inverter topologies." Science, Technology and Innovation 16, no. 3-4 (2023): 1–19. http://dx.doi.org/10.55225/sti.477.

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Transformerless inverters are widely used in different photovoltaic nonisolated ac module applications, mainly in grid-tied photovoltaic (PV) generation systems, due to the benefits of achieving high efficiency over a wide load range, and low cost. Various transformerless inverter topologies have been proposed to meet the safety requirement of low ground leakage currents, such as specified in the VDE-4105 standard and low-output ac-current distortion. Topology modifications of transformerless full bridge inverters are designed to balance and maintain a constant common mode output voltage, thereby eliminating or reducing leakage currents. This article reviews and compares the different methods for limiting leakage currents in known topologies of the full-bridge transformerless inverters, such as: H4, H5, H6, HERIC, and their improvements. The main topologies and strategies used to reduce the leakage current in transformerless schemes are summarized, highlighting advantages and disadvantages and establishing points of comparison with similar topologies. To compare the properties of different medium to high power inverters, PV inverter topologies were implemented using IGBTs and tested with the same components, same simulation parameters in PSPICE to evaluate their performance in terms of energy efficiency and leakage current characteristics. The detailed power stage operating principles, extended PWM modulator, and integrated universal gate driver with galvanic isolation in the transmission path of control signal for all IGBTs of the inverter, as well isolated and floating bias power supply for gate drivers are described.

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Khoun Jahan, Hossein, Nima Abdolmaleki, Mohammad Ahmadpour, et al. "A Reconfigurable Fault-Tolerant PV Inverter via Integrating HERIC and H5 Topologies." Energies 15, no. 9 (2022): 3403. http://dx.doi.org/10.3390/en15093403.

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Solar energy is prevalent in many applications, therefore, the reliability of solar energy systems has become an important topic for research communities and industry. High reliability and fault-tolerant capability are particularly vital for the solar energy systems that are mission-critical and/or inaccessible to affordable maintenance. In order to enhance the reliability of a grid-tied PV system, a fault-tolerant Photovoltaic (PV) inverter, termed Integrated Fault-Tolerant PV Inverter (IFTPVI), is proposed in this paper. The IFTPVI is based on the Highly Efficient and Reliable Inverter Concept (HERIC) and H5 inverters that are both popular and commercialized transformerless inverters in grid-tied PV applications. The IFTPVI can tolerate both open-circuit (OC) and short-circuit (SC) faults while maintaining the same voltage and current levels. The system description, reliability analysis, simulation in Matlab/Simulink 2018, and experimental results are provided to verify the feasibility and viability of the proposed inverter topology.

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Lamreoua, Abdelhak, Benslimane Anas, Jamal Bouchnaif, and El Ouariachi Mostafa. "Single-phase transformerless inverter topologies at different levels for a photovoltaic system, with proportional resonant controller." International Journal of Electrical and Computer Engineering (IJECE) 13, no. 2 (2023): 1410–22. https://doi.org/10.11591/ijece.v13i2.pp1410-1422.

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In this paper, we have studied the topologies of single-phase transformerless inverters with different levels using a proportional-integral-resonant (PIR) AC controller, and the multi-level cascade inverter topology with sinusoidal pulse with modulation (SPWM) control in an open and closed loop. To ensure that these photovoltaic inverters can inject a defined amount of reactive power into the grid according to international regulations. Therefore, precise monitoring of the mains voltage vector by a phase-locked loop (PLL) system is applied to ensure the proper functioning of this system. For inverter topologies with less than three levels, the simulation results show that the highly efficient and reliable inverter concept (HERIC) topology performance is better than that of H5 and H6. On the other hand, the performance of the topology H6 ameliorate is superior to those of H4, H5, and HERIC in currents of leakage. On the other hand, for the control of cascaded multi-level closed-loop inverters, we notice that there is an improvement in the spectra and the elimination of all frequency harmonics, close to that of the fundamental, and a reduction in the rate of harmonic current distortion.

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Abdelhak, Lamreoua, Anas Benslimane, Bouchnaif Jamal, and Mostafa El Ouariachi. "Single-phase transformerless inverter topologies at different levels for a photovoltaic system, with proportional resonant controller." International Journal of Electrical and Computer Engineering (IJECE) 13, no. 2 (2023): 1410. http://dx.doi.org/10.11591/ijece.v13i2.pp1410-1422.

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<span lang="EN-US">In this paper, we have studied the topologies of single-phase transformerless inverters with different levels using a <a name="_Hlk115945664"></a>proportional-integral-resonant (PIR) AC controller, and the multi-level cascade inverter topology with sinusoidal pulse with modulation (SPWM) control in an open and closed loop. To ensure that these photovoltaic inverters can inject a defined amount of reactive power into the grid according to international regulations. Therefore, precise monitoring of the mains voltage vector by a phase-locked loop (PLL) system is applied to ensure the proper functioning of this system. For inverter topologies with less than three levels, the simulation results show that the highly efficient and reliable inverter concept (HERIC) topology performance is better than that of H5 and H6. On the other hand, the performance of the topology H6 ameliorate is superior to those of H4, H5, and HERIC in currents of leakage. On the other hand, for the control of cascaded multi-level closed-loop inverters, we notice that there is an improvement in the spectra and the elimination of all frequency harmonics, close to that of the fundamental, and a reduction in the rate of harmonic current distortion.</span>

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9

Xiao, Hua F., Li Zhang, and Yanqing Li. "A Zero-Voltage-Transition HERIC-Type Transformerless Photovoltaic Grid-Connected Inverter." IEEE Transactions on Industrial Electronics 64, no. 2 (2017): 1222–32. http://dx.doi.org/10.1109/tie.2016.2611574.

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Zhang, Chun Long. "Research on Control Method of Grid-Connected Inverter Suppressing Grid-Voltage Background Harmonics." Advanced Materials Research 787 (September 2013): 861–66. http://dx.doi.org/10.4028/www.scientific.net/amr.787.861.

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The traditional LCL-filter third-order system grid-connected inverter may cause the resonance phenomenon without damping. Also, it will be affected by the distorted grid-voltage background harmonics. In order to overcome these problems, based on the passive damping method, a new control strategy is proposed. The paper analyses the current waveform performance of grid-connected inverter in the condition of grid-voltage background harmonics, derives the feed-forward function for grid-connected inverter. The disadvantages of passive damping could be well solved by damping resistor virtualization of the original system, which realized the active damping suppression of resonance. Simulation results based on the Heric single-phase transformerless grid-connected inverter verify the correctness of the 2éQ: theoretical analysis"theoretical analysis.

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Book chapters on the topic "HERIC transformerless inverter"

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Kumar, N. Santosh, Ahmad Syed, P. Hemeshwar Chary, Syed Sarfaraz Nawaz, Abu Tayab, and Zia Ur Rehman. "An Improved Neutral Point Clamped Heric Based Transformerless PV Inverter Topology." In Power Energy and Secure Smart Technologies. CRC Press, 2025. https://doi.org/10.1201/9781003661917-7.

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Conference papers on the topic "HERIC transformerless inverter"

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Muazzam, Hafiz Haider Ali. "Optimization and Performance Evaluation of Transformerless HERIC and H5 PV Inverters: Minimizing Leakage Current, Enhancing Efficiency, and Waveform Control." In 2024 Horizons of Information Technology and Engineering (HITE). IEEE, 2024. https://doi.org/10.1109/hite63532.2024.10777252.

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Alzoubi, Muh'd I., Amanullah Maung Than Oo, and Salahuddin Azad. "Simulation and Evaluation of HERIC and H5 Transformerless Inverter Topologies." In Power and Energy Systems. ACTAPRESS, 2013. http://dx.doi.org/10.2316/p.2013.800-101.

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Saravanakrishnan., V., N. Dhanush., S. Israk Hussian., G. Thamizhselvan., and A. Janagiraman. "Control Strategy for Renewable Energy System Using Transformerless HERIC Bridge Inverter." In 2023 2nd International Conference for Innovation in Technology (INOCON). IEEE, 2023. http://dx.doi.org/10.1109/inocon57975.2023.10101335.

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Adam, Shuaibu Musa, Vladimir Hahanov, Svetlana Chumachenko, Eugenia Litvinova, and Ka Lok Man. "Novel Design and Simulation of HERIC Transformerless PV Inverter in MATLAB/Simulink." In 2021 IEEE East-West Design & Test Symposium (EWDTS). IEEE, 2021. http://dx.doi.org/10.1109/ewdts52692.2021.9581017.

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Hu, Senjun, Chenming Li, Wuhua Li, Xiangning He, and Fengwen Cao. "Enhanced HERIC based transformerless inverter with hybrid clamping cell for leakage current elimination." In 2015 IEEE Energy Conversion Congress and Exposition. IEEE, 2015. http://dx.doi.org/10.1109/ecce.2015.7310410.

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Vazquez, G., P. R. Martinez-Rodriguez, J. M. Sosa, G. Escobar, M. A. Juarez, and A. A. Valdez. "H5-HERIC based transformerless multilevel inverter for single-phase grid connected PV systems." In IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2015. http://dx.doi.org/10.1109/iecon.2015.7392234.

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Mohamadian, Sobhan, Concettina Buccella, and Carlo Cecati. "Transformerless HERIC Inverter with Modified Unipolar PWM to Decrease Grid-Injected Current's THD." In IECON 2022 – 48th Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2022. http://dx.doi.org/10.1109/iecon49645.2022.9969060.

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8

Wang, Ruibin, Huafeng Xiao, Zheng Wei, and Chao Chen. "A Zero-Current-Transition HERIC-type Transformerless Photovoltaic Grid-Connected Inverter with Reduced Peak Current." In 2019 14th IEEE Conference on Industrial Electronics and Applications (ICIEA). IEEE, 2019. http://dx.doi.org/10.1109/iciea.2019.8834274.

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9

Li, Kerui, Yanfeng Shen, Yongheng Yang, Zian Qin, and Frede Blaabjerg. "A transformerless single-phase symmetrical Z-source HERIC inverter with reduced leakage currents for PV systems." In 2018 IEEE Applied Power Electronics Conference and Exposition (APEC). IEEE, 2018. http://dx.doi.org/10.1109/apec.2018.8341035.

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Kumar, K. Sateesh, A. Kirubakaran, and N. Subrahmanyam. "Bi-Directional Clamping Based H5, HERIC and H6-Type Transformerless Inverter Topologies with Improved Modulation Technique." In 2020 IEEE International Conference on Power Electronics, Smart Grid and Renewable Energy (PESGRE). IEEE, 2020. http://dx.doi.org/10.1109/pesgre45664.2020.9070590.

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