Secondary Frequency Modulation Strategy for SiC Inverters Based on Periodic Spread Spectrum Modulation
Yanfei Cao, Junjie Su, Yan Yan, Zhichen Lin, Tingna Shi
TL;DR
This paper proposes a new modulation strategy for SiC inverters in vehicles to reduce EMI, device loss, and voltage/current ripple.
Contribution
A novel 'secondary frequency modulation' strategy is introduced to further reduce EMI in SiC inverters.
Findings
The 'secondary frequency modulation' strategy reduces inverter-conducted EMI without increasing ripple or loss.
A quantitative relationship between spread spectrum modulation parameters and performance indicators is established.
Periodic spread spectrum modulation characteristics are leveraged to optimize inverter performance.
Abstract
This paper aims to design the modulation strategy of SiC motor controller for vehicles with low EMI, low device loss and low voltage/current ripple. The equivalent evaluation model of input voltage, output current and switching loss of the inverter under periodic spread spectrum modulation strategy is constructed, and the quantitative relationship between each parameter of spread spectrum modulation and the three indicators is established. The input/output performance and loss level of the inverter under different spread spectrum modulation strategies are evaluated. On this basis, based on the carrier frequency distribution characteristics of periodic signal spread spectrum modulation, a “secondary frequency modulation” strategy is proposed to reduce the inverter-conducted EMI to a greater extent under the limited spread spectrum range. Experimental results show that compared with the…
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
Click any figure to enlarge with its caption.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
Figure 17
Figure 18
Figure 19
Figure 20Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsMultilevel Inverters and Converters · Advanced DC-DC Converters · Electromagnetic Compatibility and Noise Suppression