AMI Automation will participate at AISTech 2022, 16-19 May, David L. Lawrence Convention Center, Pittsburgh, PA, USA. Come and visit us to discuss the latest AMI developments, including SVC (Static VAR Compensator) and the IoTrode Module for our SmartFurnace System, at booth 741.

Stay tuned for more information about our technical presentations:

Replacement of Saturable Reactors with Solid-State, SCR Based Valves Yields Efficiency Improvements and Environmental Benefits by Rick Ferguson, Frank Taylor, Jeff Greenwald, USS UPI; Eric Martínez, David Leal, Bernardo Sainz, AMI Automation. Session: Electrical Applications, Location: 306, Tuesday 17, 2:00–2:30 pm.

Abstract: For decades, Saturable Reactors provided a straightforward means to remotely and proportionally control the AC through a load, an indispensable control in the transformation of coated steel. Although simple to control, Saturable Reactor losses are high, old units are isolated/cooled with Polychlorinated biphenyls (PCBs), and they typically have a large footprint. Advances in Power Semiconductor Technology like BCTs and Hi-Performance Aluminum Heatsinks allowed the use of a Medium Voltage Air Cooled Valve control. The bi-directional controlled thyristor (BCT) is a concept for high power phase control thyristors (PCTs) where two anti-parallel high-power thyristors are integrated onto one single silicon wafer and are assembled into one housing. This article presents the design, installation, and benefits of the implementation, presenting advantages, such as size, efficiency, versatility, and coating quality, versus a traditional Saturable Reactor solution.

Efficient and Reliable Method to Upgrade Static Var Compensator (SVC) Control Reusing the Solid-State Valves by Jorge Haros, Antonio Mariscal, Eric Martínez, José Luis Pepe, Bernardo Sainz, AMI Automation. Session: Electrical Applications, Location: 401, Tuesday 17, 3:30-4:00 pm.

Abstract: SVCs’ fast-acting reactive power is indispensable for optimal Electrical Steel Making. SVCs, like any other control equipment, are susceptible to component obsolescence. Although advances in Hi-Performance Real-Time Controls allows the possibility to generate optimal control solution with tailored interfaces to existing Power devices. This article presents the design, installation, and benefits of the implementation, presenting advantages, efficiency, and versatility versus a complete valve replacement.

Enhanced Impact Response for Hot Rolling Mills by Rommel Villarreal, Bernardo Sainz, AMI Automation. Session: Hot Sheet Rolling, Location: 306, Monday 16, 4:30-5:00 pm.

Abstract: One of the fundamentals characteristics of a rolling mill is the speed response of the main drive for two reasons, speed adjustments and other very important is the impact response. The requirements of speeds impact response depend on the type of rolling mill and product to roll. Different methods have been applied to avoid problems of a low-speed response, for example, adding some lead speed before impacting, and taking it out after impact. To have a better impact response is necessary to increase the speed regulator response leading to torque oscillations and resonance when running in idle. This paper shows other methods, where feed forwards compensations assist the speed regulator to have an enhanced impact response and avoid problems of torque oscillations while running in idle.

For more information please visit: https://www.aist.org/conference-expositions/aistech