Proceedings ArticleDOI
Maximum power point tracking control of a high power dc-dc converter for PV integration in MVDC distribution grids
Jingxin Hu,Philipp Joebges,Rik W. De Doncker +2 more
- pp 1259-1266
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TLDR
In this paper, a three-phase dual-active bridge (DAB3) dc-dc converter is employed as the central converter to track the maximum power point (MPP) of a large-scale photovoltaic (PV) farm, and to deliver the generated energy into dc distribution grids.Abstract:
This paper discusses the design of a control strategy for a three-phase dual-active bridge (DAB3) dc-dc converter, which is employed as the central converter to track the maximum power point (MPP) of a large-scale photovoltaic (PV) farm, and to deliver the generated energy into dc distribution grids. Considering the soft-switching characteristics of the DAB3 converter, two different maximum output power point tracking strategies are proposed to maximize PV power generation. To achieve a fast transient performance of the maximum-power-point-tracking (MPPT) based voltage control especially considering the non-linear characteristic of the PV panels, the PV current is compensated with a feedforward function in the cascaded control loop. A down-scaled laboratory prototype of the DAB3 converter is designed and tested with PV panels to validate the performance of the proposed control method.read more
Citations
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Journal ArticleDOI
Input-Independent and Output-Series Connected Modular DC–DC Converter With Intermodule Power Balancing Units for MVdc Integration of Distributed PV
TL;DR: A novel topology of modular dc–dc converter has been proposed for medium voltage dc (MVdc) integration of high-penetration distributed PV with input-independent and output-series connected configuration and intermodule power balancing units (PBUs).
Journal ArticleDOI
A Maximum-Output-Power-Point-Tracking-Controlled Dual-Active Bridge Converter for Photovoltaic Energy Integration Into MVDC Grids
Jingxin Hu,Philipp Joebges,Goutham Chakravarthi Pasupuleti,Nurhan Rizqy Averous,Rik W. De Doncker +4 more
TL;DR: A novel maximum output power point tracking (MOPPT) strategy for a three-phase dual-active bridge (DAB3) converter to integrate a large-scale photovoltaic (PV) energy generation into medium-voltage dc grids is presented.
Journal ArticleDOI
Full-Bridge ZCS-Converter-Based High-Gain Modular DC-DC Converter for PV Integration With Medium-Voltage DC Grids
Rohit Suryadevara,Leila Parsa +1 more
TL;DR: Novel improvements in the proposed converter include minimization of duty-cycle loss and resonant capacitor leakage and the realization of the current-adaptive resonant energy storage mechanism, without using additional switches or auxiliary circuits.
Journal ArticleDOI
Real-Time Device-Level Simulation of MMC-Based MVDC Traction Power System on MPSoC
Tian Liang,Venkata Dinavahi +1 more
TL;DR: The three-phase unbalance issue has been resolved by introducing the three- phase to single-phase MMC topology.
Proceedings ArticleDOI
Active Bridges Based Bidirectional DC-DC Converter for Solar PV application
TL;DR: A new system, active Bridges based BD Converters is designed for solar PV panel, which is more convenient for transferring the regulated power flow in both directions of the system and is more suitable in both small residential houses and also in Big power plants.
References
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Journal ArticleDOI
Comparison of Photovoltaic Array Maximum Power Point Tracking Techniques
Trishan Esram,Patrick L. Chapman +1 more
TL;DR: The many different techniques for maximum power point tracking of photovoltaic (PV) arrays are discussed in this paper, and at least 19 distinct methods have been introduced in the literature, with many variations on implementation.
Journal ArticleDOI
Optimization of perturb and observe maximum power point tracking method
TL;DR: In this article, the perturb and observe (PO) algorithm is used in photovoltaic (PV) systems to maximize the PV array output power by tracking continuously the maximum power point (MPP) which depends on panels temperature and on irradiance conditions.
Journal ArticleDOI
A three-phase soft-switched high power density DC/DC converter for high power applications
TL;DR: In this paper, three DC/DC converter topologies suitable for high power-density high power applications are presented, which operate in a soft-switched manner, making possible a reduction in device switching losses and an increase in switching frequency.
Journal ArticleDOI
Enhanced Load Step Response for a Bidirectional DC–DC Converter
TL;DR: In this article, a linearized dynamic model of a DAB that accurately identifies its transient response to both a reference voltage change and an output load-current change is presented, and a feed-forward compensation strategy is presented to improve the DAB's transient response.
Journal ArticleDOI
The Short-Time-Scale Transient Processes in High-Voltage and High-Power Isolated Bidirectional DC–DC Converters
TL;DR: In this paper, the short-time-scale transient processes in an isolated bidirectional dc-dc converter with phase-shift control are analyzed. But the authors focus on the phase shift errors at the boundary conditions and propose a set of strategies to increase system robustness.