Feature Investigation of a T-LPMSM Following the Selection of Its Slot-Pole Combination

Souissi, Amal; Abdennadher, Imen; Masmoudi, Ahmed; Marignetti, Fabrizio

doi:10.1109/tia.2016.2624740

Cited by 12 publications

(3 citation statements)

References 26 publications

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“…The force can be calculated using the Maxwell stress tensor (MST)

\overset{badbreak\leftrightarrow}{T}

as follows [10]:

F = \int_{S} \overset{T}{true} badbreak\cdot \overset{n}{true} d S

where S is the surface area in the middle of the air gap,

\hat{n}

is the normal vector of S , and

\overset{badbreak\leftrightarrow}{T}

is the MST. In the cylindrical coordinate system,

\overset{badbreak\leftrightarrow}{T}

is expressed as

\begin{array}{l} \overset{badbreak\leftrightarrow}{T} = [\begin{matrix} left \\ left T_{r r} & left T_{r θ} & left T_{r z} \\ left T_{θ r} & left T_{θ θ} & left T_{θ z} \\ left T_{z r} & left T_{z θ} & left T_{z z} \end{matrix}] \\ = [\begin{matrix} center \\ center \frac{B_{r}^{2} - B_{θ}^{2} - B_{z}^{2}}{2 μ_{0}} & center \frac{B_{r} B_{θ}}{μ_{0}} & center \frac{B_{r} B_{z}}{μ_{0}} \\ center \frac{B_{r} B_{θ}}{μ_{0}} & center \frac{B_{θ}^{2} - B_{r}^{2} - B_{z}^{2}}{2 μ_{0}} & center \frac{B_{θ} B_{z}}{μ_{0}} \\ center \frac{B_{r} B_{z}}{μ_{0}} & center \frac{B_{θ} B_{z}}{<...>} \end{matrix} \end{array}

…”

Section: Force Calculationmentioning

confidence: 99%

“…where λ a is the linkage flux in the a-phase winding, N a is the number of turns of the a-phase winding, and Δz a is the virtual tooth plane shown in Figure 8. Based on the voltage equation, the back EMF under no-load condition can be calculated as follows: The force can be calculated using the Maxwell stress tensor (MST) T ↔ as follows [10]:…”

Section: Back Emfmentioning

confidence: 99%

“…The previous research studies have focussed on subjects such as the analytical field calculation [3][4][5], magnetic equivalent circuit [6,7], the design optimisation [8][9][10], and the thrust effect on magnetisation patterns [11]. In particular, Shin et al [12,13] presented the analytical modelling and experimental verification of LTPMMs.…”

Section: Introductionmentioning

confidence: 99%

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Linear tubular permanent magnet motor for an electromagnetic active suspension system

Kim

Woo

2021

IET Electric Power Appl

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This work presents the comparative study of the linear tubular permanent magnet motor (LTPMM) for the active suspension system in vehicles. To analyse and design the LTPMM, a finite element-based optimisation process is proposed. Since the proposed method reconstructs the entire field by storing the information of the air-gap magnetic flux distribution in the form of a snapshot, it provides high accuracy and a reduced computation time. The magnetic fields are analysed in LTPMMs with external and internal permanent magnets that are classified according to the position of the permanent magnet. In the comparative analysis, an optimal model for the LTPMM is presented, taking into account characteristics such as thrust, detent force and THD. Especially, various magnetisation patterns are considered to accomplish high force density. The analytical model is verified by performing finite element analysis and experiments.

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“…The force can be calculated using the Maxwell stress tensor (MST)