Distributed Energy Resource Interface Unit / Protocol Conversion Unit
Protocol conversion, data acquisition, and remote control, achieving centralized monitoring and optimized operation of distributed energy resources.
Product Description
The distributed energy resource (DER) interface unit is designed in accordance with the unified standards of State Grid and China Southern Grid. It features core functions such as data acquisition, protocol conversion, and power control, and supports multiple communication protocols and interface standards. Supporting access for up to three channels of DERs, it enables the “visibility, measurability, controllability, and adjustability” of distributed energy resources, serving as key equipment to support the construction of the new power system.
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Product Advantages
Reliable Communication
● Supports HPLC/HPLC+HRF dual-mode communication, RS485 communication, and Bluetooth communication.
Protocol Conversion
● Protocol self-adaptation, supporting inverter protocols from hundreds of mainstream PV inverter manufacturers, including Solis, Growatt, GoodWe, Huawei, and Sungrow.
Data Transmission
● Communication with data acquisition terminals, meters, PV inverters, circuit breakers, energy storage systems, and charging piles, with proxy support.
Data Collection
● AC analog data acquisition, inverter data collection, charging pile monitoring, circuit breaker detection, and energy storage data acquisition.
Control Function
● Supports flexible regulation modes including value-based control, proportional control, and time-period control.
One-to-Many Meter Reading
● Supports access for up to 3 inverters, with seamless switching between dual master stations.
Other Functions
● Downlink monitoring, communication relay, security encryption, positioning, initialization, and upgrade.
Distributed Energy Resource Interface Unit / Protocol Conversion Unit
DFDL33-HX3320
DFDL33-HX3320
| Technical Specifications | Specifications / Requirements |
| Operating Voltage | AC220V Allowable deviation-20%~+50% |
| Operating Frequency | 50HZ Allowable deviation-6%~+2% |
| Operating Power Consumption | Non-communication state Apparent power ≤ 5VA Active power ≤ 2W |
| Uplink Communication | Supports HPLC/HPLC+HRF dual-mode communication Using a pluggable module design |
| Uplink Communication Protocol | Supports DL/T 698.45 and its extended protocols |
| Downlink Communication | 2-channel RJ45 2-channel RS485 1-channel Bluetooth |
| Single-Phase Voltage Acquisition | Voltage measurement accuracy of 1.0% |
| Clock Accuracy | Absolute value of daily clock error ≤ 0.5 s/d |
| Reliability Indicators | Mean Time Between Failures (MTBF) ≥ 8.76×10⁴ h |