A study and implementation of three-level boost converter with MPPT for PV application

Tampubolon, Marojahan; Lin, Wei-Cheng; Lin, Jing‐Yuan; Hsieh, Yao‐Ching; Chiu, Huang‐Jen; Yamanaka, Kazushi; Hojo, Masahide

doi:10.1109/ifeec.2017.7992202

Cited by 14 publications

(3 citation statements)

References 9 publications

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“…However, the voltage balance of the outputs VC1 and VC2 is not always ensured. Therefore, the PWM signal u1 is shifted forward or backward according to the algorithm shown in Figure 4 until the balance is adequately achieved [25].…”

Section: Output Voltage Balance With the Phase-shift Techniquementioning

confidence: 99%

Fuzzy and predictive control of a photovoltaic pumping system based on three-level boost converter

Massaq¹,

Abounada²,

Ramzi³

2021

Bulletin EEI

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In this work, an efficient control scheme for a double stage pumping system is proposed. On the DC side, a three-level boost converter is employed to maximize the photovoltaic power and to step-up the DC-link voltage. For maximum power point tracking, the classical incremental conductance method is substituted by a fuzzy logic controller. The designed controller estimates the optimal step size which speeds up the tracking process and improves the accuracy of the extracted photovoltaic power. Afterwards, the voltages across the three-level boost converter (TLBC) capacitors are balanced by phase shifting the applied duty ratios. On the motor pump side, a two-level inverter drives the motor pump with the cascaded nonlinear predictive control. The predictive controller is preferred over the conventional field-oriented control because it accelerates the torque response and resists to the change of the engine parameters. The designed controllers are evaluated using MATLAB/Simulink, and compared with the conventional controllers (incremental conductance algorithm and field-oriented control). The robust control scheme of the entire system has increased the hydraulic power by up to 23% during the system start-up and up to 10% in steady state.

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Section: Output Voltage Balance With the Phase-shift Techniquementioning

confidence: 99%

Fuzzy and predictive control of a photovoltaic pumping system based on three-level boost converter

Massaq¹,

Abounada²,

Ramzi³

2021

Bulletin EEI

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“…Yaramasu et al applied predictive control in a wind energy conversion chain composed by three stages: Diode rectifier, TLB and TLNPC inverter [13]. Kwon et al [14][15][16] use the simple Maximum Power Point Tracking (MPPT) P&O method to TLB to extract the maximum power from the photovoltaic generator, as well as simple PI regulators to TLNPC inverter for the control of the output inverter currents. Another control method of the TLB (Golden Section Search) presented by Balakishan et al [17] has been applied to extract the maximum power from the photovoltaic generator.…”

Section: Introductionmentioning

confidence: 99%

New Optimized Control of Cascaded Multilevel Converters for Grid Tied Photovoltaic Power Generation

Benamrane¹,

Talbi²,

Benlahbib³

et al. 2021

JESA

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This paper proposes a new optimized control of photovoltaic two stages conversion cascade composed by Three Levels Boost (TLB) and Three Levels Neutral Point Clamped (TLNPC) inverter. In order to extract the maximum power from photovoltaic generator and get a balanced DC bus voltage, the duty cycles of the two TLB switches are determinate from a Fuzzy Logic Controller (FLC) for the first switch and by adding to the first duty cycle an additional duty cycle obtained by integration of the error between the two capacitors voltages of DC bus. Balancing the bus voltages by the TLB using a single regulator avoid us to use a complex balancing algorithm by the redundant vectors of TLNPC inverter. For the control of the inverter, we used a Proportional Integral (PI) regulator optimized by PSO. This command allows us to have on one side a constant DC bus voltage and a current injection in phase with the grid voltage. To have an efficient follow-up of the TLNPC inverter reference voltages, the Space Vector Pulse Width Modulation (SVPWM) is applied. The simulation is carried out in MATLAB/SIMULINK platform. The results obtained from the application of the FLC command associated with PI PSO are better compared to the simulation without optimization in terms of sum of the absolute values of the errors at the inputs of the three PI regulators.

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“…A three-level boost converter (TLBC) is employed in this paper. Compared to conventional two-level boost converter, the TLBC is more widely employed in high-voltage high-power applications to reduce the device voltage stress, to increase the power ratings, and to decrease the output filter size [28][29][30][31][32][33][34]. However, TLBC has to face the problem of midpoint potential shift in practical applications.…”

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confidence: 99%

A Novel Hybrid DC Traction Power Supply System Integrating PV and Reversible Converters

Zhang

Tian

et al. 2018

Energies

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A novel hybrid traction power supply system (HTPSS) integrating PV and reversible converter (RC) is proposed. PV is introduced to reduce the energy cost and increase the reliability of power systems. A reversible converter can achieve multiple objectives including regenerative braking energy recovery, PV energy inverting, DC voltage regulation and power factor improvement. In this paper, the topology and operating modes of the HTPSS are first introduced. Three-level boost converter (TLBC) is employed in the PV system. A double closed-loop control scheme considering both maximum power point tracking (MPPT) and midpoint potential balancing (MPB) is recommended. The reversible converter adopts a multi-modular topology and the independent control for active power and reactive power has been achieved by a current decoupling control. According to the working characteristic of each device, a coordinated control strategy is designed, and four basic principles are given. A system simulation model containing a hybrid traction substation and a train was built, and comprehensive simulations under multi-scenario were carried out. The results show that the reversible converter can accomplish PV energy inversion, DC voltage regulation, regenerative braking energy recovery and power factor improvement, by which a high utilization rate and energy-saving effect can be obtained.Energies 2018, 11, 1661 2 of 24 train runs between two substations, the braking time is only 10-15 s under normal circumstances. The relatively low utilization rate, in addition to the single function (just inverting), result in a long investment payback period. It is becoming the main obstacle for the massive application of inverters.Urban rail transit is becoming a big energy consumer and has significant impacts on energy consumption at a regional scale [15]. It turns out to be more and more urgent to reduce system energy consumption through all possible means. As a clean energy, photovoltaic has had rapid development all over the world recently, and the installed capacity has been increasing year by year [16,17]. Large-scale PV plants are mainly located in the desert regions due to the high solar irradiance and vast area, but the output power is usually constrained by the transmission capacity of the grid [18]. Future development will focus on the distributed PV system, which is located as close to the user as possible [19]. Railway companies have much potential to introduce PV system around railway premises, such as the roof of platforms, substations, vehicle depots, sound walls and other buildings or openings along the line [20]. It is reported that the PV system installed on platform roof of Tokyo station generates 340 MWh electric energy annually [20]. The possibility of introducing PV technologies into traction power supply system is discussed in [21], but solar energy is just used for air conditioning and lighting. In [22], a grid-connected PV system is introduced in TPSS. However, it is not an optimal scheme for the transmission and distribution of...

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A study and implementation of three-level boost converter with MPPT for PV application

Cited by 14 publications

References 9 publications

Fuzzy and predictive control of a photovoltaic pumping system based on three-level boost converter

Fuzzy and predictive control of a photovoltaic pumping system based on three-level boost converter

New Optimized Control of Cascaded Multilevel Converters for Grid Tied Photovoltaic Power Generation

A Novel Hybrid DC Traction Power Supply System Integrating PV and Reversible Converters

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