Partial Power Processing architecture applied to a Battery Energy Storage System

Sevil, Jesús Sergio Artal; Bernal-Ruíz, Carlos; Anzola, Jon; Aizpuru, Iosu; Bono-Nuez, Antonio; Sanz-Alcaine, José Miguel

doi:10.1109/vppc49601.2020.9330966

Cited by 9 publications

(7 citation statements)

References 14 publications

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“…Grid current (iabc) is deployed for current control implementation in the rotating direct-quadrature (dq) reference frame [46]. The DC-to-DC converter control is implemented using an isolated or non-isolated converter in this strategy, where the phase shift between the voltages, duty ratio (D) of the voltages, and the frequency of operation can be controlled using either a PI or DB controller for transient DC current reduction, as shown in Figure 8b [47]. The inner-loop current's reference value (In) is generated by the first PI controller and is compared with the reference current (I*) in the inner-loop control, and this is fed to the second PI controller to generate the switching pulse to stabilize the DC output voltage [36].…”

Section: Partial Power Control (Ppc) Techniquementioning

confidence: 99%

“…The inner-loop current's reference value (In) is generated by the first PI controller and is compared with the reference current (I*) in the inner-loop control, and this is fed to the second PI controller to generate the switching pulse to stabilize the DC output voltage [36]. The technique only processes a fraction of the total power requirement percentage of the EV load [45][46][47].…”

Section: Partial Power Control (Ppc) Techniquementioning

confidence: 99%

“…The inner-loop current's reference value (In) is generated by the first PI controller and is compared with the reference current (I*) in the innerloop control, and this is fed to the second PI controller to generate the switching pulse to stabilize the DC output voltage [36]. The technique only processes a fraction of the total power requirement percentage of the EV load [45][46][47]. The implementation of partial power control using the PI controller in [36] and the DB controller in [23] for isolated converters showed a high surge current, which caused a slow response and poor efficiency in terms of reactive power control issues and complex control architecture.…”

Section: Partial Power Control (Ppc) Techniquementioning

confidence: 99%

“…The implementation of partial power control using the PI controller in [36] and the DB controller in [23] for isolated converters showed a high surge current, which caused a slow response and poor efficiency in terms of reactive power control issues and complex control architecture. In contrast, the non-isolated power converter approach with the DB controller was adjudged to improve the overall voltage and frequency regulation at the PCC due to the absence of the isolation barrier, as well as improving the overall efficiency [47]. However, the problems of slow controller response and sensitivity to EV load The implementation of partial power control using the PI controller in [36] and the DB controller in [23] for isolated converters showed a high surge current, which caused a slow response and poor efficiency in terms of reactive power control issues and complex control architecture.…”

Section: Partial Power Control (Ppc) Techniquementioning

confidence: 99%

See 3 more Smart Citations

State-of-the-Art Grid Stability Improvement Techniques for Electric Vehicle Fast-Charging Stations for Future Outlooks

Momoh,

Zulkifli,

Korba

et al. 2023

Energies

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The growing trend for electric vehicles (EVs) and fast-charging stations (FCSs) will cause the overloading of grids due to the high current injection from FCSs’ converters. The insensitive nature of the state of charge (SOC) of EV batteries during FCS operation often results in grid instability problems, such as voltage and frequency deviation at the point of common coupling (PCC). Therefore, many researchers have focused on two-stage converter control (TSCC) and single-stage converter (SSC) control for FCS stability enhancement, and suggested that SSC architectures are superior in performance, unlike the TSCC methods. However, only a few research works have focused on SSC techniques, despite the techniques’ ability to provide inertia and damping support through the virtual synchronous machine (VSM) strategy due to power decoupling and dynamic response problems. TSCC methods deploy current or voltage control for controlling EVs’ SOC battery charging through proportional-integral (PI), proportional-resonant (PR), deadbeat or proportional-integral-derivative (PID) controllers, but these are relegated by high current harmonics, frequency fluctuation and switching losses due to transient switching. This paper reviewed the linkage between the latest research contributions, issues associated with TSCC and SSC techniques, and the performance evaluation of the techniques, and subsequently identified the research gaps and proposed SSC control with SOC consideration for further research studies.

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Section: Partial Power Control (Ppc) Techniquementioning

confidence: 99%

Section: Partial Power Control (Ppc) Techniquementioning

confidence: 99%

Section: Partial Power Control (Ppc) Techniquementioning

confidence: 99%

Section: Partial Power Control (Ppc) Techniquementioning

confidence: 99%

See 2 more Smart Citations

State-of-the-Art Grid Stability Improvement Techniques for Electric Vehicle Fast-Charging Stations for Future Outlooks

Momoh,

Zulkifli,

Korba

et al. 2023

Energies

View full text Add to dashboard Cite

show abstract

“…Therefore, global maximum power point tracking (GMPPT) algorithms are required to identify the global peak [15][16][17][18][19]. Recently, active mismatch mitigation techniques based on power electronics have been developed for PV systems, as categorized in Figure 2 [20][21][22][23][24][25][26]. In Figure 2, the distributed maximum power point tracking (DMPPT) systems, which consist of microconverters, have been developed to resolve the mismatch problems [27][28][29].…”

Section: Introductionmentioning

confidence: 99%

A Simple Mismatch Mitigating Partial Power Processing Converter for Solar PV Modules

et al. 2021

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Partial shading affects the energy harvested from photovoltaic (PV) modules, leading to a mismatch in PV systems and causing energy losses. For this purpose, differential power processing (DPP) converters are the emerging power electronic-based topologies used to address the mismatch issues. Normally, PV modules are connected in series and DPP converters are used to extract the power from these PV modules by only processing the fraction of power called mismatched power. In this work, a switched-capacitor-inductor (SCL)-based DPP converter is presented, which mitigates the non-ideal conditions in solar PV systems. A proposed SCL-based DPP technique utilizes a simple control strategy to extract the maximum power from the partially shaded PV modules by only processing a fraction of the power. Furthermore, an operational principle and loss analysis for the proposed converter is presented. The proposed topology is examined and compared with the traditional bypass diode technique through simulations and experimental tests. The efficiency of the proposed DPP is validated by the experiment and simulation. The results demonstrate the performance in terms of higher energy yield without bypassing the low-producing PV module by using a simple control. The results indicate that achieved efficiency is higher than 98% under severe mismatch (higher than 50%).

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Optimal Control Method and Design for Modular Battery Energy Storage System Based on Partial Power Conversion

Zheng

Zhang

et al. 2021

IEEE Access

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This article addresses a bidirectional low power loss series-parallel partial-power modular converter (SPPC) suitable for series-connected high voltage large power battery energy storage system (BESS). A specific capacitor is placed on the top of the series battery packs, which voltage can be adjusted by the SPPC to compensate for the voltage fluctuation of the battery packs and the DC power line. The power loss and cost of the SPPC are relatively low since its rated power is reduced to about 22% − 48% of the full-power converter. A 3 level distributed control method is proposed to achieve the fast transient response of the DC power line current and deal with the series inconsistency of battery packs during discharging and charging, further improving the total energy utilization efficiency (EUE) of the BESS. The critical design considerations for SPPC-BESS are analyzed. A bidirectional 800W phase-shift full-bridge (PSFB) converter hardware prototype along with the Gallium Nitride (GaN) devices is provided to verify the high efficiency of DC-DC sub-module. Then a simulation model of a 6.6kW SPPC-BESS with 3 sub-modules to verify the feasibility of the control method. Theoretical analysis proves that the total power loss of the SPPC is lower than the existing types of modular converters. The EUE of the SPPC-BESS is 1.7% higher than the conventional BESS when the average maximum available capacities of batteries attenuate to 80% of the initial maximum available capacity.

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Partial Power Processing architecture applied to a Battery Energy Storage System

Cited by 9 publications

References 14 publications

State-of-the-Art Grid Stability Improvement Techniques for Electric Vehicle Fast-Charging Stations for Future Outlooks

State-of-the-Art Grid Stability Improvement Techniques for Electric Vehicle Fast-Charging Stations for Future Outlooks

A Simple Mismatch Mitigating Partial Power Processing Converter for Solar PV Modules

Optimal Control Method and Design for Modular Battery Energy Storage System Based on Partial Power Conversion

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