Modeling and Analysis of Zig-Zag Boost Converter for Battery Charging Applications

Karpana, Sivakrishna; Batzelis, Efstratios; Maiti, Suman

doi:10.1109/piicon49524.2020.9112897

Cited by 1 publication

(3 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Energies 2021, 14, x FOR PEER REVIEW 7 of 40 gain characteristics and gain vs. duty cycle as compared to the conventional boost converters [49]. Secondly, the proposed converter can also meet the voltage gain requirement, which sometimes approaches a value of four, where the conventional boost converter fails or suffers from issues related to extremely low efficiency.…”

Section: System/parameters Ratingsmentioning

confidence: 99%

“…As shown in Figure 2, an addi tional boost converter decouples the PV MPPT operation not only from the SC charge control operation but also from the grid-side operation of the inverter. For the SC Buck-Boost stage, the Zig-Zag Boost (ZZB) bidirectional converter is used as a better alternative over the conventional Boost converter due to its better efficiency vs For the SC Buck-Boost stage, the Zig-Zag Boost (ZZB) bidirectional converter is used as a better alternative over the conventional Boost converter due to its better efficiency vs. gain characteristics and gain vs. duty cycle as compared to the conventional boost converters [49]. Secondly, the proposed converter can also meet the voltage gain requirement, which sometimes approaches a value of four, where the conventional boost converter fails or suffers from issues related to extremely low efficiency.…”

Section: System/parameters Ratingsmentioning

confidence: 99%

“…The PWM technique for the discharging and charging of the SC, and the corresponding modes of operation, are shown in Figures 4 and 5, respectively. However, a thorough analysis and working principle of the proposed ZZB converter has already been published in [49], and hence, will not be covered in detail here. The SCI stage for SC is a simple H-bridge structure with two controlled and two uncontrolled switches.…”

Section: System/parameters Ratingsmentioning

confidence: 99%

See 2 more Smart Citations

PV-Supercapacitor Cascaded Topology for Primary Frequency Responses and Dynamic Inertia Emulation

et al. 2021

Self Cite

View full text Add to dashboard Cite

Owing to rapid increase in PV penetration without inherent inertia, there has been an unremitting deterioration of the effective inertia of the existing power systems. This may pose a serious threat to the stability of power systems during disturbances if not taken care of. Hence, the problem of how to emulate Synthetic Inertia (SI) in PV Systems (PVS) to retain their frequency stability demands attention. Super Capacitor (SC)-based storage become an attractive option over the other energy storage types because of its high-power density, burst power handling capability, faster response and longer life cycle. Considering this, the authors here propose a novel PV-SC Cascaded Topology (PSCT) as a cost-effective approach to emulate SI by integrating a low voltage SC to a high voltage grid-connected PVS. The proposed PSCT helps in operating the SC as a voltage source rather than a current source. Thus, it eliminates the high gain requirements of the SC interfacing converters. The aim is to target two main frequency response services, i.e., Primary Frequency Response (PFR) and Synthetic Inertial Response (SIR), using a novel common control scheme, but without affecting any other energy intensive services. The authors introduced a Droop-Inspired (DI) method with an adjustable inertia constant to emulate dynamic inertia so that a wider range of Rate of Change of Frequency (RoCoF) values can be serviced with a limited storage. A very streamlined analysis was also carried out for sizing of the SC stage based on a simple Three-Point Linearization (TPL) technique and DI technique with a limited knowledge of the disturbance parameters. The whole system was initially validated in a MATLAB Simulink environment and later confirmed with the OPAL-RT Real-Time Simulator. The investigated response was subject to variation in terms of control parameters, changes in solar irradiance, grid frequency variation, etc.

show abstract

Section: System/parameters Ratingsmentioning

confidence: 99%

Section: System/parameters Ratingsmentioning

confidence: 99%

Section: System/parameters Ratingsmentioning

confidence: 99%

See 1 more Smart Citation