Photovoltaic power plant system construction EPC project turnkey communication architecture diagram-data acquisition and monitoring scheme
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Photovoltaic power plant system construction EPC project turnkey communication structure diagram
Equipment Type Video Surveillance Environmental and Meteorological Monitoring Inverters Anti-Islanding Protection Devices Split into High and Low Voltage Multifunction Meters SVG (if HV project involved) Boosting Transformer Measurement and Control Devices (if HV project involved)
Data content Historical data (90 days), real-time data Right angle/inclination/accumulated irradiance, temperature, humidity, wind speed, wind direction, rainfall (snowfall), dust deposition rate/concentration, air pollution index, etc. Data to be collected are shown in Exhibit 1 "Telemessage: circuit breaker opening and closing status, faults, alarms, and anomalies information, manual, and remote indication;
Telemetry: line voltage, protection current, power, frequency and other data; remote control: signal resumption, remote switching" Voltage, current, active, reactive power, positive and negative power, power factor, etc. Voltage, current, power, frequency and other electrical parameters; equipment operation status; protection and alarm signals, etc. Measuring and control device data (voltage, positive and negative power, power, protection, etc.)
Network cable, optical fibre, room camera
Video recorder
Monitoring system host
Display storm
Photovoltaic power station
Wireless upload operation and maintenance centre
Vertical Encryption
Firewall
Network cable
Reserved interface for uploading and scheduling
Vertical encryption
Wireless Transmission to Municipal Local Dispatch
Electricity information wireless collection terminal
RS485
1-4# Grid-connected cabinet meter
Network switch
Digital mining IOT communication manager (with the ability of group regulation and group control)
RS485
String Inverter NBO1 String Inverter NBO2
String inverter NBO4
String Inverter NBO.
String Inverter NBO5String Inverter NBO6
String Inverter NBO8
String Inverter NBO7
String Inverter NBO9 String Inverter NB10
String Inverter NB11String Inverter NB12
RS485
Environmental Monitor
RS485
SC-GP-IR4G
1#Infrared Meter Reading
2#Infrared Meter Reading
Infrared Meter Reading
LCL)
4#Infrared Meter Reading
RS485
1#Anti-islanding device
2#Anti-islanding device
Anti-Islanding Device # Anti-Islanding Device
Cable description.
54.1 billion cables
Network cable.
(if HV is involved) HV grid-connected primary diagram; all data of anti-islanding protection device, fault release device, integrated measurement and control device; DC screen monitoring data
Schedule 1
Telemetry Telecommunication Remote control Telemodulation
Switch-on time System blocking status Full-network switch-on control Active power regulation (actual value)
Switch-off time Inverter switch-off status Full-network switch-off control Reactive power regulation (actual value)
PV input voltage DI status Full network power on/off control Active power regulation (percentage)
PV input current Abnormal active scheduling command PV shutdown Reactive power regulation (power factor)
DC input power Abnormal reactive dispatch command PV switch-on
Grid AB line voltage Power regulation mode
Grid BC line voltage Active regulation state
Grid CA line voltage Reactive regulation state
Grid A phase voltage Active power control mode
Grid B phase voltage Fault sign
Grid phase C voltage Abnormality marking
Grid phase A current cubicle abnormality
Grid B phase current Device address conflict
Grid phase C current Surge arrester failure
Active power Power supply fault
Reactive power Communication fault
Power factor Licence expiry
Rated power Total circuit breaker disconnected
Grid frequency Number of alarms
Inverter efficiency High string voltage
Internal temperature DC arc fault
Cumulative Power Generation String Reverse Connection
Total DC Input Power String Reverse Flooding
Current Hourly Power Generation Statistic Time String Power Abnormality
Current hourly power generation AFCI self-test failure
Power generation of the day Grid phase line short circuit to PE
Weekly power output Grid power down
Power generation of the month Grid undervoltage
Current year's power generation Grid overvoltage
Previous day's power statistics time Grid voltage imbalance
Power generation for the previous day Power overfrequency
The previous week's power statistics Grid underfrequency
Power generation in the previous week Power grid frequency instability
Power statistics for the previous month Output overcurrent
Power generation in the previous month Excessive DC component of the output current
Power generation in the previous year Abnormal residual current
Abnormal residual current Abnormal system grounding
Carbon dioxide emission reduction Low insulation impedance
Total busbar voltage Temperature is too high
Maximum value of PV voltage Abnormal equipment
Minimum value of PV voltage Upgrade failure
Average value of PV negative-to-ground voltage Monitoring unit failure
Maximum value of PV positive-to-ground voltage Power harvester failure
Minimum value of PV negative to ground voltage Active islanding
Maximum value of active regulation Passive islanding
Active regulation min Instantaneous AC overvoltage
Reactive regulation max External device port short circuit
Reactive regulation min Off-grid output overload
Insulation impedance value Abnormal battery board configuration
Equipment SN Standby
Grid connection
Normal grid connection
Power limit derating
Self-Derating Grid Connection
Normal shutdown
Power limit shutdown
Spot check
Optimiser failure
Built-in PID working abnormally
Input string high voltage to ground
Abnormal external fan
Abnormal parallel and off-grid controller
Loss of string
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