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IEEE transactions on industrial electronics: Institute of Electrical and Electronics Engineers transactions on industrial electronics
Institute of Electrical and Electronics Engineers
IEEE transactions on industrial electronics: Institute of Electrical and Electronics Engineers transactions on industrial electronics

Institute of Electrical and Electronics Engineers

0278-0046

IEEE transactions on industrial electronics: Institute of Electrical and Electronics Engineers transactions on industrial electronics/Journal IEEE transactions on industrial electronics: Institute of Electrical and Electronics Engineers transactions on industrial electronicsEI
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    IEEE Transactions on Industrial Electronics Publication Information

    C2-C2页
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    IEEE Transactions on Industrial Electronics Information for Authors

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    IEEE Industrial Electronics Society Information

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    Table of Contents

    C1,5493-5496页
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    A Novel Fault-Tolerant Operation Approach for Cascaded H-Bridge Converter-Based Battery Energy Storage Systems to Avoid Overcharge

    Qian XiaoHaolin YuYu JinHongjie Jia...
    5497-5506页
    查看更多>>摘要：Conventional fundamental frequency zero-sequence voltage (FFZSV) injection-based fault-tolerant operation methods cause power reversion under submodule (SM) failure conditions with low-power factor, which leads to overcharge risk in the cascaded H-bridge converter-based battery energy storage system (CHB-BESS). To solve this issue, a novel fault-tolerant operation approach has been proposed for the CHB-BESS. First, the power reversion mechanism and overcharge risk are analyzed with the conventional FFZSV injection-based methods. On this basis, the operation conditions of the CHB-BESS are divided into three stages according to the safe FFZSV injection region, the FFZSV is modified, and the negative sequence current is injected when necessary. As a result, the power flow of battery packs among the three phases can maintain the same direction, and the power reversion and overcharge risk can be avoided. Experimental results under various conditions verify that the proposed fault-tolerant operation approach of the CHB-BESS can achieve uninterrupted operation and avoid overcharge risk.
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    A Novel Complex Power Sharing Based on Sliding Mode Control for Islanded AC Microgrids

    Carlos AlfaroRamon GuzmanAntonio CamachoÁngel Borrell...
    5507-5517页
    查看更多>>摘要：This article introduces a novel complex sliding-mode control strategy for grid-forming inverters in islanded microgrids. This approach offers an alternative to the traditional hierarchical control strategies that typically rely on droop control, communication-based secondary controls, and virtual impedance methods. To develop the complex sliding-mode control, we propose a complex phasor model for grid-forming inverters, presenting an alternative to the conventional power flow model used in ac microgrids. This model enables the derivation of a linear complex dynamic model for grid-forming inverters connected to a microgrid, based on the apparent power differential equation, thereby simplifying the control law design process. The proposed control system features three key advantages: first, it ensures precise active and reactive power sharing across both resistive and inductive power lines, eliminating the need for virtual impedance; second, it exhibits high robustness against line impedance mismatches and external disturbances, including load changes and the connection and disconnection of inverters; and third, it eliminates the requirement for secondary frequency control. Experimental results validate the effectiveness of the proposed control strategy.
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    Improving Voltage Support in Islanded AC Microgrids During Unbalanced Short-Circuit Faults

    Miguel CastillaJaume MiretÁngel BorrellJosué Duarte...
    5518-5526页
    查看更多>>摘要：In the event of a short-circuit fault in an islanded ac microgrid, grid-forming power inverters activate a resistive virtual impedance to protect themselves against over-current, whereas grid-feeding power inverters are tasked with providing voltage support. In this scenario, the sequence impedances that are responsible for voltage support exhibit significant variability depending on the values of both the virtual and short-circuit impedances. State-of-the-art control schemes do not take this variation into account, resulting in voltage support that could be enhanced. This article presents a control scheme designed for grid-feeding inverters that improve voltage support during unbalanced short-circuit faults. The scheme is based on an online measurement of the sequence impedances and the selection of the most appropriate current injection technique for voltage support using the measured impedance values. A theoretical analysis is also included, which was performed to verify the stability of the microgrid with the proposed control. Finally, experimental results from a laboratory microgrid are presented for validation purposes.
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    Research on High-Frequency Vibration Reduction for Active Magnetic Bearings With Carrier Phase Shifting PWM

    Longyuan FanZicheng LiuDong JiangRonghai Qu...
    5527-5537页
    查看更多>>摘要：The reduction of vibration and noise in active magnetic bearings (AMBs) within electric motors has garnered increasing attention. However, there has been limited research on the high-frequency (HF) vibration introduced by AMB controllers in relation to the switching frequency. In this article, we pioneer an exploration into the mechanism and characteristics of HF vibration in magnetic bearings. We introduce a carrier phase-shifting (CPS) method to analyze its impact on the spatial distribution of electromagnetic force in the air gap and vibration response. Subsequently, we construct a deep neural network (DNN) to model and predict the actual vibration of magnetic bearings, and integrate the grey wolf optimization (GWO) algorithm to optimize the CPS mode, phase-shifting angles, and switching frequency. Finally, experimental validation confirms the effectiveness of our proposed CPS method and artificial intelligence (AI) optimization algorithm. Our results demonstrate a remarkable reduction in HF vibration of AMB, achieving a maximum reduction of 90% and an average of 84% through intelligent optimization.
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    Multivoltage-Vector-Modulation-Based Integrated Direct Torque Control of Dual in-Wheel PM Motors for Distributed Drive Electric Vehicles

    Zhaoheng WangXiaoyong ZhuLei XuWen-Hua Chen...
    5538-5548页
    查看更多>>摘要：To improve the coordinate control performance of the multiple motors in the distributed drive (DD) electric vehicle (EV) system, an integrated direct torque control with multiple voltage vector (MVV) modulation is developed and implemented in this article. It focuses on the integrated modulation principle considering dynamic operating demands and interaction between the independent drive wheels, where the frequency ratio integrated modulation and virtual vector integrated modulation are proposed and investigated. And then, a 1/2 DD system with the dual in-wheel permanent magnet (DIW-PM) motors which is represented in the front and rear drive wheels is selected as the control example. Based on the six-leg inverter, the dual in-wheel permanent magnet motor drive system is established and the mathematic model is derived. The different modulation methods are discussed and compared. Finally, the experiments are conducted on the DD system with two different power levels and configurations in-wheel PM motors, and the experimental results are presented to verify the effectiveness of the proposed integrated direct torque control method for the EV distributed drive systems.
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    Fast Computational Method for PWM Strategy Comparison of Machine and Inverter Electrical Losses: Application on WLTC Cycle

    Salma BenharrefVincent LanfranchiDaniel DepernetTahar Hamiti...
    5549-5557页
    查看更多>>摘要：For electric vehicle motors, it is essential to control the sources of loss which could reduce the overall efficiency of the system. In this context, this article aims to present a detailed comparison of machine and inverter losses between the space vector pulse width modulation (SVPWM) and the discontinuous pulse width modulation 2 (DPWM2). To compare both PWM strategies on the WLTC (worldwide harmonized light vehicles test cycles) cycle in an efficient way, a full analytical model is used to predict inverter losses and a sequential use of an analytical and a finite element analysis is used to perform an in-depth analysis of machine losses. This semianalytical method which can be used for any pulse width modulation (PWM) strategy allows to speed up the calculations and the comparison of different PWM schemes. Experiments were then conducted for different operating points and supply voltage levels to validate the results. The theoretical and experimental results show that although the DPWM2 allows to reduce inverter losses, it still generates more machine losses compared to the SVPWM especially on the WLTC cycle, which makes the DPWM2 less efficient. Nevertheless, depending on the total supply voltage, the DPWM2 could be more or less interesting on the WLTC cycle with comparison with the SVPWM.
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