Search query: high voltage boost converter

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abstract: In this paper, closed loop control and boundary condition for continuous conduction mode and discontinuous conduction mode of nonisolated inverting Nx multilevel boost converter (MBC) are articulated. Inverting Nx MBC combines the features of classical boost converter and voltage multiplier to attain inverting N times higher voltage. Consequently, the inverting Nx MBC provides a viable solution for high voltage step up photovoltaic applications with low voltage rating reactive components and semiconductor devices. The control strategy with saturation limiter is employed to achieve highly stable voltage. The modes of operation, benefits of inverting Nx MBC, and key factors for the selection of semiconductor devices and sizing of the reactive components are discussed. Additionally, the effects of reactive components and semiconductor devices on the output voltage are examined. Experimental results of the developed circuit are presented to validate the design of converter, and effectiveness and robustness of the implemented control algorithm for different input and output side perturbations.
author_names: Atif Iqbal

Mahajan Sagar Bhaskar

Mohammad Meraj

Sanjeevikumar Padmanaban

Syed Rahman
title: Closed Loop Control and Boundary for CCM and DCM of Nonisolated Inverting Nx Multilevel Boost Converter for High Voltage Step Up Applications
venue: IEEE Transactions on Industrial Electronics
year: 2020

abstract: In fuel cell vehicles, the output voltage of the fuel cell source is typically much lower than the voltage required by the dc bus, and also this output voltage drops significantly as the output current increases. In order to match the output voltage of the fuel cell source to the dc bus voltage, a new dc dc boost converter with a wide input range and high voltage gain is proposed to act as the required power interface, which reduces voltage stress across the power devices and operates with an acceptable conversion efficiency. A prototype rated at 300 W/400 V has been developed and the maximum efficiency of the proposed converter was measured as 95.01% at 300 W. Experimental results are presented to validate the effectiveness of the proposed converter.
author_names: Yun Zhang

Heyu Liu

Jing Li

Mark Sumner

Changliang Xia
title: DC DC Boost Converter With a Wide Input Range and High Voltage Gain for Fuel Cell Vehicles
venue: IEEE Transactions on Power Electronics
year: 2019

abstract: This article proposed a nonisolated symmetrical interleaved multilevel boost converter for high voltage microgrid applications. The proposed converter configuration is derived from the integration of a voltage multiplier (VM) circuit with the front end structure of the classical two phase interleaved converter. Moreover, equal voltage rating capacitors and diodes are suitable to design multiple stages of the proposed converter. The proposed converter can feed from two independent sources or single source in the interleaved approach. The continuous input current, high voltage gain, reduced voltage rating of capacitor (that causes reduction in cost) reduced components, and flexibility in number of sources make the proposed converter more attractive for renewable dc microgrid applications such as, photovoltaic (PV) system, fuel cell (FC) system, and hybrid PV FC system. Furthermore, the voltage gain of the converter can be increased by just adding similar stages of VM without preferring the high voltage rating capacitors and without disturbing the front end structure of the converter. Nonidealities are considered to analyze the proposed converter in a more practical way. The characteristics and operation of the proposed converter are discussed in this article with the continuous conduction mode and Discontinuous Conduction Mode boundary conditions. The design of the reactive components and selection of semiconductor devices are discussed. Additionally, the proposed converter is compared with recently proposed dc dc multilevel converters. To support the proposed work, simulation and experimental results are provided which shows a good agreement with the analytical approach.
author_names: Mahajan Sagar Bhaskar

Mohammad Meraj

Atif Iqbal

Sanjeevikumar Padmanaban
title: Nonisolated Symmetrical Interleaved Multilevel Boost Converter With Reduction in Voltage Rating of Capacitors for High Voltage Microgrid Applications
venue: IEEE Transactions on Industry Applications
year: 2019

abstract: This paper proposes a fully integrated high conversion ratio dual output voltage boost converter (VBC) with maximum power point tracking (MPPT) circuits for low voltage energy harvesting. The VBC consists of two voltage generators that generate V<sub>OUT1</sub> and V<sub>OUT2</sub> V<sub>OUT1</sub> and V<sub>OUT2</sub> are three and nine times higher than the harvester's output V<sub>IN</sub> respectively. V<sub>OUT1</sub> is used as a supply voltage for on chip application circuits while V<sub>OUT2</sub> is used as the charging voltage for a Li ion secondary battery. The VBC achieves a high voltage conversion ratio (max. x 9) and a high power conversion efficiency. The MPPT circuits control the operating frequencies of the CPs to extract maximum power at each output. The measurement results demonstrated that the circuit converted a 0.59 V input to a 1.41 V output with 75.8% efficiency when the output powers of V<sub>OUT1</sub> and V<sub>OUT2</sub> were 396 and 0 mW, respectively, and a 0.62 V input to a 4.54 V output with 49.1% efficiency when the output powers were 0 and 114 mW, respectively.
author_names: Toshihiro Ozaki

Tetsuya Hirose

Hiroki Asano

Nobutaka Kuroki

Masahiro Numa
title: Fully Integrated High Conversion Ratio Dual Output Voltage Boost Converter With MPPT for Low Voltage Energy Harvesting
venue: IEEE Journal of Solid State Circuits
year: 2016

abstract: In this article a new Transformer and Switched Capacitor based Boost Converter (T SC BC) is proposed for high voltage/low current renewable energy applications. The proposed T SC BC is an original extension for DC DC boost converter which is designed by utilizing a transformer and switched capacitor (T SC) Photovoltaic (PV) energy is a fast emergent segment among the renewable energy systems. The proposed T SC BC combines the features of the conventional boost converter and T SC to achieve a high voltage conversion ratio. A Maximum Power Point Tracking (MPPT) controller is compulsory and necessary in a PV system to extract maximum power. Thus, a photovoltaic MPPT control mechanism also articulated for the proposed T SC BC. The voltage conversion ratio (Vo/Vin) of proposed converter is (1 k)(1 D) where, k is the turns ratio of the transformer and D is the duty cycle (thus, the converter provides 9.26, 13.88, 50/3 voltage conversion ratios at 78.4 duty cycle with k 1, 2, 2.6, respectively) The conspicuous features of proposed T SC BC are: (i) a high voltage conversion ratio (Vo/Vin) (ii) continuous input current (Iin) (iii) single switch topology; (iv) single input source; (v) low drain to source voltage (VDS) rating of control switch; (vi) a single inductor and a single untapped transformer are used. Moreover, the proposed T SC BC topology was compared with recently addressed DC DC converters in terms of number of components, cost, voltage conversion ratio, ripples, efficiency and power range. Simulation and experimental results are provided which validate the functionality, design and concept of the proposed approach.
author_names: Sanjeevikumar Padmanaban

Mahajan Sagar Bhaskar

Pandav Kiran Maroti

Frede Blaabjerg

Viliam Fedak
title: An original transformer and switched capacitor (T SC) based extension for DC DC boost converter for high voltage/low current renewable energy applications: Hardware implementation of a new T SC boost converter
year: 2018

abstract: Due to the more vigorous regulations on carbon gas emissions and fuel economy, Fuel cell electric vehicles (FCEV) are becoming more popular in the automobile industry. This paper presents a neural network based maximum power point tracking (MPPT) controller for 1.26 kW proton exchange membrane fuel cell (PEMFC) supplying electric vehicle powertrain through a high voltage gain dc dc boost converter. The proposed neural network MPPT controller uses a radial basis function network (RBFN) algorithm for tracking the maximum power point of the PEMFC. High switching frequency and high voltage gain dc dc converters are essential for the propulsion of FCEV. In order to attain high voltage gain, a three phase high voltage gain interleaved boost converter is also designed for FCEV system. The interleaving technique reduces the input current ripple and voltage stress on the power semiconductor devices. The performance analysis of the FCEV system with RBFN based MPPT controller is compared with the fuzzy logic controller in MATLAB/Simulink platform.
author_names: K Jyotheeswara Reddy

N Sudhakar
title: High Voltage Gain Interleaved Boost Converter With Neural Network Based MPPT Controller for Fuel Cell Based Electric Vehicle Applications
venue: IEEE Access
year: 2018

abstract: In this paper, a new nonisolated high voltage gain boost converter is proposed. The proposed converter is constructed by adding an additional inductor to a conventional three level boost (TLB) converter. When compared with the conventional boost and TLB converters, the proposed converter can achieve higher voltage conversion ratio with reduced voltage and current stresses in the switches. In particular, the proposed converter can reduce the losses of active devices by reducing the current of the switch compared to conventional converters, thus, can achieve high efficiency. In addition, the proposed converter automatically balances the output voltages for an unbalanced load without the need for any additional control strategy or auxiliary circuit. A 2 kW prototype converter was built and tested to verify performances of the proposed converter.
author_names: Hyemin Kang

Honnyong Cha
title: A New Nonisolated High Voltage Gain Boost Converter With Inherent Output Voltage Balancing
venue: IEEE Transactions on Industrial Electronics
year: 2018

abstract: The need of dc dc switching converters for power supplies with high voltage gains has increased in the recent years due to new applications in areas as renewable energy systems, transportation, industrial, medical, and others. A quadratic boost converter is a useful topology to obtain a step up output voltage; however, a major drawback is the presence of a higher voltage stress over the active and passive switches. In this paper, a quadratic boost converter is combined with a voltage multiplier cell and an output filter to offer a high voltage gain converter with nonpulsating input and output currents. The expressions for the capacitor voltages and inductor currents are given, as well as the corresponding ripples that allow the proper design of the converter. The bilinear switched, nonlinear averaged and linear averaged models are derived such that the dynamical behavior of the converter is analyzed and used to design a control strategy. A step by step procedure is given to tune up a current mode controller. Experimental results are shown from a prototype, which delivers an output voltage of 220 V and an output power of 300 W. Step load changes between 20% and full load are applied to exhibit the robustness of switching regulator.
author_names: Jesus Leyva-Ramos

R Mota-Varona

Maria Guadalupe Ortiz-Lopez

Luis Humberto Diaz-Saldierna

Diego Langarica-Cordoba
title: Control Strategy of a Quadratic Boost Converter With Voltage Multiplier Cell for High Voltage Gain
venue: IEEE Journal of Emerging and Selected Topics in Power Electronics
year: 2017

abstract: Purpose The paper aims to design of dual mode boost converter with integrated low voltage control circuit is introduced in this paper. The paper aims to discuss these issues. Design/methodology/approach The converter is operated either with LC filter or with charge pump circuit by the switch control. The control stage with error amplifier, comparator, and oscillator is designed with the supply voltage of 3.3 V and the operating frequency of 5.5 MHz. The compensator circuit exploits a pole compensation for a stable operation. Findings The simulation test in 0.35 mm CMOS process shows that the charge pump regulator and DC DC boost converter are accurately controlled with the variation of number of stages and duty ratio. The output voltage is obtained to be 6 15 V within the ripple ratio of 5 percent. Maximum power consumption is about 0.65 W. Originality/value This dual mode is useful in the converter with a wide load current variation. The advantage of the dual mode converter is that it can be used.
author_names: Jung-Woong Park

Munkhsuld Gendensuren

Ho-Yong Choi

Nam-Soo Kim
title: Integrated high voltage boost converter with LC filter and charge pump
year: 2013

abstract: An impedance network dc dc boost converter is developed in this letter. Compared to the conventional boost converter, it can reach a higher voltage gain with fewer diodes and a small duty cycle (smaller than 33% and, meanwhile, avoid instability caused by saturation of its inductors, whereas the conventional boost converters realize high voltage gains at rather large duty cycles (normally exceeding 50% resulting in saturation of inductors. Furthermore, it can well fulfill the stringent industrial requirements, particularly of renewable power systems. The proposed converter with continuous conduction modes is analyzed for different states of its components. Then, it is shown how to determine its various parameters. Finally, simulations and a 250 W prototype are conducted to verify the converter's effectiveness.
author_names: Guidong Zhang

Herbert Ho-Ching Iu

Bo Zhang

Zhong Li

Tyrone Lucius Fernando

Si-Zhe Chen

Yun Zhang
title: An Impedance Network Boost Converter With a High Voltage Gain
venue: IEEE Transactions on Power Electronics
year: 2017