Dr. Suresh Reddy: Engineering Leader in Control Theory & Applications

Control Systems Theory & Applications

Nonlinear and linear control theory, Industrial and manufacturing process control, Active noise control, Control software development

Injection molding machines: GE-Fanuc control improvements

Polycarbonate sheet extrusion: GE process control (sheet ripple reduction concepts)

GE Aircraft Engine Turbine blades: Metal spray forming process control concepts

GE Reflector bulb manufacturing: silver stripping process control concepts

Relevant Experience at GE, MIT, Ohio State:

Vehicle control systems at GE and Caterpillar Inc (link)

Control of electric/hybrid powertrains and charging systems at GE, Caterpillar Inc and Fronius USA (link)

Control of electric power generation systems and microgrids at Caterpillar Inc & microgrids (link)

Manufacturing process control:

• spray forming control concepts for aircraft engine turbine blades

• GE Lexan™ polycarbonate sheet ripple reduction/ elimination - extrusion rolls control concepts (GE)

• multivariable nonlinear control design of a new process for silver stripping (GE)

• injection molding process control improvements, simulations, and control rapid prototyping (GE)

Noise control/reduction:

• simulation of active control designs for exterior and interior noise of turboprop aircraft (GE)

Nonlinear control theory and applications:

• Theory for nonlinear controls for systems with unknown dynamics (Time Delay Control), PID control for nonlinear systems (MIT & post-MIT)

• Control of active magnetic bearings - implementation of Time Delay Control and comparison to linear analog compensator (MIT)

• Control of active magnetic bearings - stability analysis and simulation of various nonlinear control systems(MIT)

• Time Delay Control stability analysis for robotic manipulators (MIT)

• Computer Aided control system design for nonlinear systems to avoid limit cycles, jump resonances and subharmonic oscillations (Ohio State)

Turboprop aircraft (OV-10A) : Active Noise Control Simulation

[Separate links for Control of Powertrains/Charging Systems; Control of vehicle systems; Control of power systems ]

Areas of Experience and Expertise

• Linear and nonlinear control systems - analysis and design

• Analysis and design of control systems with delay

• Computer aided control system design for nonlinear systems

• Control of magnetic bearings, robotic manipulators

• Industrial/chemical/manufacturing process control

• Active noise control

• Vehicle control systems (link)

• Control of electric/hybrid powertrains and charging systems (link)

• Control of electric power generation systems & microgrids (link)

• Modeling and simulation of systems and control

• Model based software development

• Software In the Loop/Hardware In the Loop (HIL)/Power HIL verification/validation

Key R&D Experience (at GE, MIT, Ohio State)

Turbomolecular Pump: Control of Active Magnetic Bearings

Robotic Manipulators (Control Analysis)

Images of industries and products used are illustrative of Dr Reddy's research and development in various companies - they are meant to be illustrative, but not necessarily identical

Sources of images of products:

Polycarbonate extrusion process - exceliteplas.com.au (illustrative); Polycarbonate sheets: acmeplastics.com (illustrative); Sheet rolling process control illustration - US Patent 6,250,904; Injection Molding machine - Wikipedia commons (illustrative); Injection molding control illustration - US Patent 6,430,466; GE aircraft engine and turbine blades - wikipedia; Spray forming process diagram - powdermetallurgy.com; Reflector light bulb - GE lighting website; OV-10A aircraft - NARA & DVIDS public domain archive; Turboprop active noise controller diagram - IEEE Conference publication; Turbomolecular pump - MIT work/photo under Ebara grant/permission; Rotor under magnetic bearings diagram - M.I.T. Ph.D. Thesis; robot manipulator - researchgate

Relevant Patents, Publications & Awards