PowerCompensationDSC

PowerCompensationDSC (PC-DSC) is a modular control solution that provides dynamic reactive power compensation in electrical distribution networks. DSC stands for Distributed Supervisory Controller, and the system coordinates sensing, communication, and actuation to stabilize voltages and improve efficiency. It is used in grids with high penetrations of renewables and energy storage, where fast, localized voltage support is beneficial.

The architecture combines a field layer of sensors and actuators with an information layer that uses a distributed control network. Sensing includes PMUs and smart meters to measure voltage, current, and phase angles. Actuators include capacitor banks, thyristor-controlled reactors, STATCOMs, and storage converters. The control layer hosts multiple DSC units that communicate over standard protocols (for example IEC 61850 or DNP3) and coordinate to compute compensation commands.

Control and optimization methods couple voltage regulation with loss minimization. Techniques include droop-based or model predictive control strategies, state estimation, and predictive line models. The system solves convex or mixed-integer optimization to determine reactive power setpoints while respecting voltage, thermal, and safety constraints. It can operate in islanded microgrids or grid-connected mode and supports hierarchical control with fast local loops and a central supervisory layer.

Applications include distribution automation, microgrids, and industrial facilities seeking improved voltage profiles and reduced losses. Benefits include faster response, scalability, and better use of distributed energy resources. Limitations involve communication latency, cybersecurity concerns, and the need for compatible devices and standards.

See also: reactive power compensation, FACTS, smart grid, distribution automation.