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TSMC Wafer Plant

Shanghai

The Power Management System (PMS) at TSMC Shanghai 200mm Wafer Production Facility monitors the power distribution and performs load shedding, providing non-stop power supply for the 24 hours operating plant.  The system includes an Operator Control and Monitoring Subsystem and a pair of redundant programmable logic controller for load shed function.  The system interfaces to S&I Communication Management and Control Computers (CMAC) collecting real-time data from the intelligent devices such as feeder management relays and motor managers, etc.  The system monitors more than 1,100 intelligent devices allover the plant.

VL Automation Limited (VL)’s responsibility on the Power Management System included Human Machine Interface and Load Shedding control logic development, testing & commissioning as well as training.  VL is a subcontractor to the electrical contractor Switchgear & Instrumentation Ltd. (S&I) UK.

Project Details

The WinCC system is configured in redundant mode to guarantee no interruption in case of either server failed. The WinCC servers communicate with the PLCs and intelligent devices via the CMAC on the standard Ethernet simultaneously, providing real-time data, field events and historical data archiving. The operator workstations provide graphical interface for control and monitoring, power consumption summary gives an overview on the plant operation. Operators are alerted to all abnormal conditions. Alarms and field data are stored in SQL database for further analysis. The system also interfaces with the add-on function Sequence of Events (SOE) and Waveform Captures.

The load shedding PLC inhibits and restores the incomer breakers and contactor feeders in case of main power supply failure and restoration, maintaining the power supply to the plant operation at the minimum requirement.

[DIAGRAM]

Functions

  • Power Distribution Monitoring
  • Incomers and Feeders Operation
  • Load Shedding
  • Power Consumption Summary
  • GPS Clock Synchronization

Features

  • Graphical Interface
  • Alarm Processing
  • Event Log
  • Historical Trending
  • Sequence of Events (SOE)
  • Waveform Captures
  • Multi-Language Switching
  • System Management

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