Product Overview

As a key component of the security and stability control system, the PCS-992 series power system security and stability control device adopts a distributed architecture consisting of one master station and multiple slave stations interconnected via optical fiber. Slave stations handle sampling, calculation, fault detection, and local tripping for their respective units. The master station collects operating status and fault judgment results from all slave stations, exchanges information and commands with stability control devices at other stations via communication interface units, identifies system operating mode, detects grid faults, calculates stability control measures or control targets based on the local stability control strategy, and then issues commands to slave stations or transmits them to stability control devices at other stations for execution.

Product Functions

Control Functions

Emergency control following AC grid faults

Emergency control following HVDC/UHVDC faults

Overload control

Integrated source-grid-load-storage control

Reactive power and voltage emergency control

Low-frequency/low-voltage load shedding and islanding

High-frequency generator tripping and islanding

Enterprise grid security and stability control

AC tie-line power loss monitoring / last breaker protection

Photovoltaic anti-islanding protection

Precise load-shedding control

Auxiliary Functions

Online hardware and loop monitoring

Minute pulse, second pulse, and IRIG-B time synchronization

128 event reports, 32 fault recording reports (master records phasors, slaves record instantaneous values)

Diverse communication solutions supporting power industry standards IEC 60870-5-103 and IEC 61850

User-friendly HMI with convenient supporting debugging software and powerful waveform analysis tools

Practical and portable dynamic full-system simulation test platform for power systems