Application of neutral-point-clamped inverter in EAST low-order harmonic experiment platform

Shen Xianshun; Gao Ge; Mao Huafeng; Li Jun; Lu Jing; Wu Ya'nan

doi:10.11884/HPLPB201931.180348

Volume 31 Issue 5

May 2019

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Article Navigation > High Power Laser and Particle Beams > 2019 > 31(5): 056008

Shen Xianshun, Gao Ge, Mao Huafeng, et al. Application of neutral-point-clamped inverter in EAST low-order harmonic experiment platform[J]. High Power Laser and Particle Beams, 2019, 31: 056008. doi: 10.11884/HPLPB201931.180348

Citation:

Shen Xianshun, Gao Ge, Mao Huafeng, et al. Application of neutral-point-clamped inverter in EAST low-order harmonic experiment platform[J]. High Power Laser and Particle Beams, 2019, 31: 056008. doi: 10.11884/HPLPB201931.180348

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Application of neutral-point-clamped inverter in EAST low-order harmonic experiment platform

doi: 10.11884/HPLPB201931.180348

Shen Xianshun^{1, 2
,},
Gao Ge^{1, 2},
Mao Huafeng¹,
Li Jun¹,
Lu Jing¹,
Wu Ya'nan^{1
,
,}

1.
Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
2.
Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China

Received Date: 2019-02-15
Rev Recd Date: 2019-02-15
Publish Date: 2019-05-15

Abstract

Abstract

Aiming at the problem that low-order harmonics (75-125 Hz) are difficult to control due to non-linear loads such as EAST magnet power supply, an injection hybrid active filtering scheme is proposed. Based on the EAST low-order harmonic experimental platform, the topology and filtering principle of the injected hybrid active power filter device are studied. At the same time, a three-level space voltage vector modulation algorithm for reducing the midpoint potential fluctuation of the DC side is adopted. The method of obtaining the basic vector action time is given. The simulation and experimental verification of the scheme and algorithm are carried out, and the simulation results are in good agreement with the experimental results, which proves that the scheme can effectively suppress the low-order harmonics and resonance amplification produced in the operation of EAST magnet power supply.
- EAST power supply,
- low-order harmonic,
- hybrid active filter,
- midpoint potential fluctuation,
- three-level space voltage vector

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References(18)

References

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