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首页> 外文会议>IEEE Transportation Electrification Conference and Expo >New Modulation Technique for Three-level Interleaved Voltage Source Inverters for Switching Loss Reduction
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New Modulation Technique for Three-level Interleaved Voltage Source Inverters for Switching Loss Reduction

机译：三电平交错式电压源逆变器的新型调制技术，可降低开关损耗

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摘要

This paper presents a new modulation strategy for three-level interleaved voltage source inverters for switching loss reduction. By using two in-phase level shifted triangular carrier signals, the simultaneous switching of the two interleaved inverter cells is avoided. Only one of the interleaved inverter cells is undergoing switching for half of the fundamental period; the other inverter cell is clamped to either the positive dc bus or the neutral point of the inverter. Therefore, the switching loss of the inverter is reduced by 50 percent compared to the conventional phase-shifted carrier modulation technique for interleaved inverters. The conduction loss of the inverter is slightly increased (by about 5 percent), but the overall loss is significantly reduced. The validity of the proposed modulation method is verified using a 1kW experimental prototype.
机译：本文提出了一种用于降低开关损耗的三电平交错式电压源逆变器的新型调制策略。通过使用两个同相电平移位的三角载波信号，避免了两个交错的逆变器单元的同时切换。交织的逆变器单元中只有一个正在进行基本周期的一半的切换;另一个逆变器单元钳位到逆变器的正直流母线或中性点。因此，与用于交错式逆变器的常规相移载波调制技术相比，逆变器的开关损耗降低了50％。逆变器的传导损耗略有增加（增加了大约5％），但是总损耗却大大降低了。使用1kW的实验原型验证了所提出的调制方法的有效性。

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