Simplified Fuzzy Control for Flux-Weakening Speed Control of IPMSM Drive

<table>Member functions for (a) speed error <svg height="14.65" id="M126" style="vertical-align:-3.20526pt" version="1.1" viewbox="0 0 32.575001 14.65" width="32.575001" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.65)">
<g transform="translate(72,-60.28)">
<text transform="matrix(1,0,0,-1,-71.95,63.52)">
<tspan style="font-size: 12.50px; " x="0" y="0">Δ</tspan>
<tspan style="font-size: 12.50px; " x="9.0271664" y="0">𝜔</tspan>
</text>
<text transform="matrix(1,0,0,-1,-54.41,60.4)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝑟</tspan>
<tspan style="font-size: 8.75px; " x="3.570816" y="0">𝑛</tspan>
</text>
</g>
</g>
</svg> and (b) command torque <svg height="15.5625" id="M127" style="vertical-align:-3.2316pt" version="1.1" viewbox="0 0 17.5625 15.5625" width="17.5625" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,15.5625)">
<g transform="translate(72,-59.55)">
<text transform="matrix(1,0,0,-1,-71.95,62.83)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑇</tspan>
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<text transform="matrix(1,0,0,-1,-63.07,67.83)">
<tspan style="font-size: 8.75px; " x="0" y="0">∗</tspan>
<tspan style="font-size: 8.75px; " x="-2" y="8.1300001">𝑒</tspan>
</text>
</g>
</g>
</svg>.</table>

Advances in Fuzzy Systems

fig3

Figure 3

Figure 3: Simplified Fuzzy Control for Flux-Weakening Speed Control of IPMSM Drive 