Performances Comparison for a Rotating Shaft Suspended by 4-Axis Radial Active Magnetic Bearings via <svg style="vertical-align:-3.294pt;width:13.775px;" id="M1" height="13.825" version="1.1" viewBox="0 0 13.775 13.825" width="13.775"  xmlns="http://www.w3.org/2000/svg">
	<g transform="matrix(1.25,0,0,-1.25,0,13.825)">
		<g transform="translate(72,-60.94)">
			<text transform="matrix(1,0,0,-1,-71.95,64.27)">
				<tspan style="font-size: 17.93px; " x="0" y="0">𝜇</tspan>
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		</g>
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</svg>-Synthesis, Loop-Shaping Design, and Sub<svg style="vertical-align:-4.50008pt;width:49.775002px;"  height="20.887501" version="1.1" viewBox="0 0 49.775002 20.887501" width="49.775002"  xmlns="http://www.w3.org/2000/svg">
	<g transform="matrix(1.25,0,0,-1.25,0,20.8875)">
		<g transform="translate(72,-55.29)">
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				<tspan style="font-size: 17.93px; " x="0" y="0">(</tspan>
				<tspan style="font-size: 17.93px; " x="5.9716892" y="0">𝐻</tspan>
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				<tspan style="font-size: 12.55px; " x="0" y="0">∞</tspan>
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		</g>
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</svg>with Uncertainties

<table>Robust stability, nominal and robust performance function described by <svg height="9.6750002" id="M100" style="vertical-align:-2.29482pt" version="1.1" viewbox="0 0 9.6374998 9.6750002" width="9.6374998" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,9.675)">
<g transform="translate(72,-64.26)">
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<tspan style="font-size: 12.50px; " x="0" y="0">𝜇</tspan>
</text>
</g>
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</svg> value with LSDP controller.</table>

Modelling and Simulation in Engineering

fig7

Figure 7

Figure 7: Performances Comparison for a Rotating Shaft Suspended by 4-Axis Radial Active Magnetic Bearings via <svg style="vertical-align:-3.294pt;width:13.775px;" id="M1" height="13.825" version="1.1" viewBox="0 0 13.775 13.825" width="13.775"  xmlns="http://www.w3.org/2000/svg">
	<g transform="matrix(1.25,0,0,-1.25,0,13.825)">
		<g transform="translate(72,-60.94)">
			<text transform="matrix(1,0,0,-1,-71.95,64.27)">
				<tspan style="font-size: 17.93px; " x="0" y="0">𝜇</tspan>
			</text>

		</g>
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</svg>-Synthesis, Loop-Shaping Design, and Sub<svg style="vertical-align:-4.50008pt;width:49.775002px;"  height="20.887501" version="1.1" viewBox="0 0 49.775002 20.887501" width="49.775002"  xmlns="http://www.w3.org/2000/svg">
	<g transform="matrix(1.25,0,0,-1.25,0,20.8875)">
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</svg>with Uncertainties 

Figure 7 | Performances Comparison for a Rotating Shaft Suspended by 4-Axis Radial Active Magnetic Bearings via 
	
		
			
				𝜇
			

		
	
-Synthesis, Loop-Shaping Design, and Sub
	
		
			
				(
				𝐻
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				∞
			

		
	
with Uncertainties 

Modelling and Simulation in Engineering

Performances Comparison for a Rotating Shaft Suspended by 4-Axis Radial Active Magnetic Bearings via 𝜇 -Synthesis, Loop-Shaping Design, and Sub ( 𝐻 ) ∞ with Uncertainties

Figure 7

Performances Comparison for a Rotating Shaft Suspended by 4-Axis Radial Active Magnetic Bearings via -Synthesis, Loop-Shaping Design, and Subwith Uncertainties