title: Design and analysis of tubular permanent magnet linear wave generator.
abstract: Due to the lack of mature design program for the tubular permanent magnet linear wave generator (TPMLWG) and poor sinusoidal characteristics of the air gap flux density for the traditional surface-mounted TPMLWG, a design method and a new secondary structure of TPMLWG are proposed. An equivalent mathematical model of TPMLWG is established to adopt the transformation relationship between the linear velocity of permanent magnet rotary generator and the operating speed of TPMLWG, to determine the structure parameters of the TPMLWG. The new secondary structure of the TPMLWG contains surface-mounted permanent magnets and the interior permanent magnets, which form a series-parallel hybrid magnetic circuit, and their reasonable structure parameters are designed to get the optimum pole-arc coefficient. The electromagnetic field and temperature field of TPMLWG are analyzed using finite element method. It can be included that the sinusoidal characteristics of air gap flux density of the new secondary structure TPMLWG are improved, the cogging force as well as mechanical vibration is reduced in the process of operation, and the stable temperature rise of generator meets the design requirements when adopting the new secondary structure of the TPMLWG.
authors: School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo 454000, China.
authors: Jikai
authors: J
authors: Si
authors: School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo 454000, China.
authors: Haichao
authors: H
authors: Feng
authors: School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo 454000, China.
authors: Peng
authors: P
authors: Su
authors: School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo 454000, China.
authors: Lufeng
authors: L
authors: Zhang
mesh_terms: D000465:Algorithms; D055590:Electromagnetic Phenomena; D004867:Equipment Design; D008962:Models, Theoretical