Power Management Systems

Control Infotech designs and builds generator control panels and protection systems for various prime movers, including gas turbines, steam turbines, and reciprocating engines. These systems incorporate:

Automatic Voltage Regulation (AVR) implementation and configuration.
Protective relaying schemes for generator protection, such as overcurrent, overvoltage, undervoltage, loss of excitation, and reverse power protection.
Machine synchronization systems utilizing automatic synchronizers and manual synchronization controls.
Comprehensive power metering for voltage, current, power (kW, kVAR, kVA), energy (kWh, kVARh), and power factor.
Monitoring capabilities for key generator parameters, including temperatures, pressures, and vibration.
Implementation of Electrical Power Monitoring Systems (EPMS) using software like Siemens WinPM.Net for comprehensive energy information management.

We implement kW and kVAR sharing algorithms using dedicated controllers or PLCs to optimize power distribution among multiple generating units. Communication between controllers and power blocks is established through industrial protocols (e.g., Modbus, Ethernet/IP) and hardwired signals for critical interlocks.

Our designs support both open and closed transition transfer schemes based on project requirements. Local Human-Machine Interface (HMI) stations provide onsite visualization and control and can be integrated as communication nodes with plant-wide SCADA or DCS systems using protocols like OPC UA or Modbus TCP/IP.

The Control Infotech Power Portfolio

Generator Supervision, Coordination & Load Management

Implementation of control strategies for efficient power generation dispatch, demand response integration, and bus voltage optimization.

Power Plant Management

Development of integrated control systems for overall power plant operation, including unit coordination and performance monitoring.

Operator Assisted Start-up & Shut-down

Design and implementation of sequenced control logic and HMI interfaces to guide operators through plant startup and shut-down procedures.

Switchgear Monitoring & Automation

Integration of monitoring devices and control functions for medium and low voltage switchgear, enhancing operational awareness and control capabilities.

Fast/Normal/Step Load Shedding

Configuration of load shedding schemes based on system frequency or other critical parameters, with multiple stages for controlled load reduction.

Active/Reactive Power Output Adjustment

Implementation of control loops and operator interfaces for adjusting generator active (kW) and reactive (kVAR) power output to meet system demands.

Load Side Power Monitoring & Management

Deployment of metering and monitoring systems on the load side to track energy consumption and facilitate demand-side management strategies.

Balance of Plant (BOP) Monitoring & Control

Integration of monitoring and control functions for auxiliary plant systems, such as cooling water, fuel handling, and compressed air.

Integration with Upper Level DCS & Process Control Systems

Configuration of communication interfaces and data mapping to enable seamless data exchange and coordinated control between our power management systems and existing plant-level control systems.