High efficiency three-phase soft-switching inverter for electric vehicle drives

Sun, Pengju; Lai, Jih-Sheng; Qian, Hao; Yu, Wensong; Smith, Chris; Bates, John

doi:10.1109/vppc.2009.5289773

Cited by 13 publications

(4 citation statements)

References 21 publications

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“…The reference line voltage employed in the hybrid modulation scheme mentioned earlier is derived from (24) and is specified with φ = 0 • , indicating that the initial phase is set to 0 as a fundamental condition. Since the actual grid line voltage may not have an initial phase of zero, the reference modulation wave generated by the control strategy will also have a non-zero initial phase (i.e., φ ̸ = 0 • ), resulting in a phase shift in the modulation waves for each modulation interval compared to the original modulation waves.…”

Section: Phase Adjustment Of the Encoded Signals In The Muxmentioning

confidence: 99%

“…Furthermore, refs. [24][25][26] enhance operational efficiency through the adoption of soft switching technology and the alteration of modulation schemes. In [24], soft switching technology is employed to mitigate the switching loss in three-phase inverters.…”

Section: Introductionmentioning

confidence: 99%

“…[24][25][26] enhance operational efficiency through the adoption of soft switching technology and the alteration of modulation schemes. In [24], soft switching technology is employed to mitigate the switching loss in three-phase inverters. However, this approach necessitates the incorporation of extra switching devices, passive components, and auxiliary circuits, leading to increased system costs and complexity.…”

Section: Introductionmentioning

confidence: 99%

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Bidirectional Power Control Strategy for On-Board Charger Based on Single-Stage Three-Phase Converter

Sun,

Wang,

2024

Electronics

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To solve the problems of large switching losses and the need for large-capacity electrolytic capacitances in three-phase DC/AC on-board chargers for vehicle-to-grid (V2G) applications, this paper proposes a single-stage bidirectional high-frequency isolated converter that eliminates the need for large-capacity capacitances. Combined with the proposed modulation scheme, it can theoretically reduce the switching loss by about two-thirds with the three-phase converter compared with the conventional modulation scheme, improving the converter’s operating efficiency and power density. Firstly, based on the characteristics of the proposed topology, a hybrid modulation scheme is proposed, which combines a phase-shift modulation scheme based on double modulation waves and a sawtooth carrier with a 1/3 modulation scheme, and the theoretical feasibility of the hybrid modulation scheme is verified using a mathematical modeling equation. Secondly, this paper provides a detailed analysis of the four operating modes of the two full-bridge circuits and the commutation process of the three-phase converter within 1/6 of the fundamental frequency cycle (P1 modulation interval). Then, the control strategy is given for the constant-current and constant-voltage charging and constant-current discharging for electric vehicle batteries. Finally, simulation results verify the correctness of the proposed topology and modulation scheme in vehicle–grid interaction.

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Section: Phase Adjustment Of the Encoded Signals In The Muxmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Bidirectional Power Control Strategy for On-Board Charger Based on Single-Stage Three-Phase Converter

Sun,

Wang,

2024

Electronics

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“…Fig.1 Topological Structure of Main Fig.2 ZVS-PWM Converter Circuit of V1 Circuit Inverter Based on Soft-switching Technology (1) 0 1t t , constant current charging mode (zero voltage switching) This mode begins by the main switch V1 and auxiliary switch VT1 on, the free-wheeling diode off[5]. At the moment of 0 t , the main switch V1 is turned off, DC current source charges the resonant capacitor because the voltage of the resonant capacitor r C cannot change abruptly.…”

mentioning

confidence: 99%

Topological Structure of Main Circuit Inverter Based on Soft-Switching Technology and Parameters Adaptive

Zeng

Liang

et al. 2013

AMR

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This paper presents a new topology of main circuit based on soft switching technology of ZVS-PWM. At present, hard switching is applied in most inverters. Because the switching power isnt equal to zero, a great number of losses on the switching are generated when the switching at a high frequency. To solve the fault of hard switching, this paper presents that apply the inverter circuits based on soft switching technology of ZVS-PWM to high frequency APF, which will decrease switching losses and noise greatly. The proposed topology and operation principle of the control method is discussed in detail, finally simulated results verify the effect of research.

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An Improved Mutated Predictive Control for Two-Level Voltage Source Inverter With Reduced Switching Losses

Bakini,

Mesbahi,

Kermadi

et al. 2024

IEEE Access

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This paper presents an approach called the mutated model predictive control strategy to reduce switching losses and enhance the efficiency of voltage source inverter (VSI) operating with a three-phase configuration. The high number of semiconductor commutations in VSIs can lead to significant switching losses, which reduces efficiency and requires large heat sinks. Conventional model predictive control (MPC) applies switching states directly to the VSI without modulation; the selection of the optimal state is accomplished by evaluating criterion. However, since the two zero vectors (V0, V7) generate identical output voltage vectors(VVs), only a single zero voltage vector can be chosen. In contrast, the proposed method uses both zero vectors based on the operating condition. The approach involves using a switching strategy with pre-condition to select the suitable zero vector between (V0, V7) and apply it for the next sampling period. The efficacy of the proposed approach is validated by conducting simulations utilizing Matlab/Simulink and PLECS software, as well as an experimental test setup is utilized, which includes a three-phase VSI connected to a resistive-inductive load. The VSI is controlled using a dSPACE MicroLabBOX. The results clearly demonstrate the superiority of the proposed control strategy, specifically in terms of reducing switching losses and improving the efficiency of the VSI.INDEX TERMS Model predictive control (MPC), power losses, switching pattern, voltage source inverter (VSI).

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High efficiency three-phase soft-switching inverter for electric vehicle drives

Cited by 13 publications

References 21 publications

Bidirectional Power Control Strategy for On-Board Charger Based on Single-Stage Three-Phase Converter

Bidirectional Power Control Strategy for On-Board Charger Based on Single-Stage Three-Phase Converter

Topological Structure of Main Circuit Inverter Based on Soft-Switching Technology and Parameters Adaptive

An Improved Mutated Predictive Control for Two-Level Voltage Source Inverter With Reduced Switching Losses

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