Control Methods for Performance Improvement of an Integrated On-Board Battery Charger in Hybrid Electric Vehicles

Bak, Yeongsu; Kang, Hyung Suk

doi:10.3390/electronics10202506

Cited by 4 publications

(5 citation statements)

References 40 publications

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“…Figure 6 shows the control block diagram for the full-bridge converter of integrated OBC which performs battery charging. It is mainly classified into DC-link voltage controller, single-phase grid source current controller, and third-harmonic reduction [30]. The v DC is controlled to reference DC-link voltage (v* DC ) using the voltage controller, and the d-q axis currents (i d and i q ) are controlled to reference d-q axis current (i* d and i* q ) using the current controller, respectively.…”

Section: Control Methods For Full-bridge Convertermentioning

confidence: 99%

Dynamic Characteristic Improvement of Integrated On-Board Charger Using a Model Predictive Control

Bak

2022

Energies

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This paper proposes a dynamic characteristic improvement of an integrated on-board charger (OBC) using a model predictive control (MPC) method. The integrated OBC performs both battery charging and starter generator (SG) driving for engine starting in plug-in hybrid electric vehicles (PHEVs). If it performs battery charging, battery-side voltage and battery-side current are control objects which are usually controlled by using a proportional-integral (PI) controller. However, it has the disadvantage of undesirable dynamic characteristics, and gain tuning of the PI controller is necessary to properly control the voltage and current. Therefore, this paper proposes the MPC method for the dynamic characteristic improvement of integrated OBC. It can achieve not only dynamic characteristic improvement, but also robustness from the abrupt change of load impedance. By using the proposed MPC method for integrated OBC, the settling time to control the output voltage is decreased by 50% in the transient state compared to that by using the PI controller. The effectiveness of the proposed MPC method is verified by simulation and experimental results.

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Section: Control Methods For Full-bridge Convertermentioning

confidence: 99%

Dynamic Characteristic Improvement of Integrated On-Board Charger Using a Model Predictive Control

Bak

2022

Energies

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“…We can select these control techniques based on the battery composition. The V2G/G2V control techniques (i.e., Hysteresis Current Control (HCC) [99], Proportional Integral (PI) control [100] and Proportional-Resonant (PR) control [101]) are used to achieve the power-flow control during the charging operating modes, according to the battery charging methodologies.…”

Section: Charging Mode Controls Forac/dc Convertermentioning

confidence: 99%

“…The PI can compensate for the current error and generates the control signals as shown in Figure 24. Then, this control signal v c abc is compared with the carrier signal to produce suitable switching patterns for the PE converter [100]. The phase locked loop (PLL) is used to determine the phase angle, θ, for inverse park transformation.…”

Section: Er Reviewmentioning

confidence: 99%

Review on Integrated On-Board Charger-Traction Systems: V2G Topologies, Control Approaches, Standards and Power Density State-of-the-Art for Electric Vehicle

et al. 2022

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This article reviews the different topologies compatible with V2G feature and control approaches of integrated onboard charger (iOBC) systems for battery electric vehicles (BEVs). The integrated topologies are presented, analyzed, and compared in terms of component count, switching frequency, total harmonic distortion (THD), charging and traction efficiencies, controllability, reliability and multifunctionality. This paper also analyzes different control approaches for charging and traction modes. Moreover, the performance indices such as setting time, rise time, overshoot, etc., are summarized for charging and traction operations. Additionally, the feasibility of a Level 3 charging (AC fast charging with 400 Vac) of up to 44 kW iOBC is discussed in terms of converter efficiencies with different switching frequencies and switch technologies such as SiC and GaN. Finally, this paper explores the power density trends of different commercial integrated charging systems. The power density trend analysis could certainly help researchers and solution engineers in the automotive industry to select the suitable converter topology to achieve the projected power density.

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“…EVs are rapidly advancing, opening up substantial prospects to increase the use of sustainable energy in the automotive sector. OBCs are frequently utilized in EVs due to their easy installation and low price [17]. An OBC needs to be power-dense and extremely efficient because of their constrained interior area and quick charging times.…”

Section: Introductionmentioning

confidence: 99%

Bidirectional Converter for Plug-In Hybrid Electric Vehicle On-Board Battery Chargers with Hybrid Technique

Anjinappa

Prabhakar

Lai

2022

WEVJ

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Recently, Plug-in Hybrid Electric Vehicles (PHEVs) have gathered a lot of attention by integrating an electric motor with an Internal Combustion Engine (ICE) to minimize fuel consumption and greenhouse gas emissions. The On-Board Chargers (OBCs) are selected in this research because they are limited by dimensions and mass, and also consume low amounts of power. The Equivalent Series Resistance (ESR) of a filter capacitor is minor, so the zero produced by the ESR is positioned at a high frequency. In this state, the system magnitude gradually drops, causing a ripple in the circuit that generates a harmful impact on the battery’s stability. To improve the stability of the system, a Neural Network with an Improved Particle Swarm Optimization (NN–IPSO) control algorithm was developed. This study establishes an isolated converter topology for PHEVs to preserve battery-charging functions through a lesser number of power electronic devices over the existing topology. This isolated converter topology is controlled by NN–IPSO for the PHEV, which interfaces with the battery. The simulation results were validated in MATLAB, indicating that the proposed NN–IPSO-based isolated converter topology minimizes the Total Harmonic Distortion (THD) to 3.69% and the power losses to 0.047 KW, and increases the efficiency to 99.823%, which is much better than that of the existing Switched Reluctance Motor (SRM) power train topology.

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Control Methods for Performance Improvement of an Integrated On-Board Battery Charger in Hybrid Electric Vehicles

Cited by 4 publications

References 40 publications

Dynamic Characteristic Improvement of Integrated On-Board Charger Using a Model Predictive Control

Dynamic Characteristic Improvement of Integrated On-Board Charger Using a Model Predictive Control

Review on Integrated On-Board Charger-Traction Systems: V2G Topologies, Control Approaches, Standards and Power Density State-of-the-Art for Electric Vehicle

Bidirectional Converter for Plug-In Hybrid Electric Vehicle On-Board Battery Chargers with Hybrid Technique

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