Primary Frequency Regulation Device PFCS-3000B

Overview

The PFCS-3000B is a dedicated primary frequency regulation controller for energy storage plants. As an independent device not relying on PCS virtual synchronous generator (VSG) mode, it can directly acquire generation unit data and issue power commands, compatible with all PCS brands.

Specifications

Parameter	Specification
Processor	RK3568J quad-core 1.8GHz, ARM64
Memory/Storage	2GB RAM, 16GB storage (expandable)
Network	RJ45 1000Mbps x6
Serial	RS485/232 x5, CAN x1
IO	DI x8, DO x4, AC sampling x1
Time Sync	B-code time synchronization
Power	Dual redundant power supply with failure alarm
OS	Kylin/NSI secure OS standard, optional Ubuntu
Temperature	-20 to 70C, humidity 5-95%
Dimensions	440 x 260 x 44.5mm
Weight	3800g
Mounting	19-inch 1U rack

Core Functions

• Frequency Detection: High-precision grid frequency detection, accuracy 0.001Hz
• Droop Control: Simulates synchronous generator primary frequency response
• Virtual Inertia: Suppresses rate of change of frequency
• AGC/AVC Coordination: Works with AGC/AVC systems for complementary control
• Direct Acquisition: Supports multiple acquisition and forwarding protocols

Applications

• Independent energy storage plant frequency regulation
• PV + energy storage plant frequency response
• Grid-side storage ancillary services
• Renewable plant grid compliance testing