Scholarlink

<p>For the sensorless control of six-phase permanent magnet synchronous motors (PMSMs) without rotor position sensors, the harmonic voltage injection method is effective at low speeds and at standstill. However, this approach suffers from torque ripples caused by the harmonic currents induced by the injected harmonic voltage. This paper compares two HVI methods in the vector space decomposition (VSD) frame: the complementary harmonic voltage injection (HVI) method and the quadrature shift HVI method. The complementary HVI method injects two harmonic voltages with opposite phases into two three-phase windings, while the quadrature shift HVI method injects two harmonic voltages with a 90° phase shift into the harmonic subspaces of the VSD. In both cases, the induced harmonic currents due to the injected harmonic voltages appear only in the harmonic subspace that does not contribute to torque production. The rotor position estimation characteristics for both methods are validated and compared through MATLAB/Simulink simulations and experimental results obtained from a 1&#xa0;kW six-phase PMSM.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Torque ripple suppression of sensorless six-phase PMSM using harmonic voltage injection in vector space decomposition control

  • 期刊论文

  • 发表日期：

    2025年12月18日

查看全文
  • Seong-Hoon Kim,
  • Min-Seo Son,
  • Kwan-Yuhl Cho,
  • Hag-Wone Kim

摘要

For the sensorless control of six-phase permanent magnet synchronous motors (PMSMs) without rotor position sensors, the harmonic voltage injection method is effective at low speeds and at standstill. However, this approach suffers from torque ripples caused by the harmonic currents induced by the injected harmonic voltage. This paper compares two HVI methods in the vector space decomposition (VSD) frame: the complementary harmonic voltage injection (HVI) method and the quadrature shift HVI method. The complementary HVI method injects two harmonic voltages with opposite phases into two three-phase windings, while the quadrature shift HVI method injects two harmonic voltages with a 90° phase shift into the harmonic subspaces of the VSD. In both cases, the induced harmonic currents due to the injected harmonic voltages appear only in the harmonic subspace that does not contribute to torque production. The rotor position estimation characteristics for both methods are validated and compared through MATLAB/Simulink simulations and experimental results obtained from a 1 kW six-phase PMSM.