Always Available for Highest Yields www.huawei.com/solar

NetEco1000S

Easy data accesses on mobile devices

Proactive reports of yields and alarms

Smart String I-V Diagnosis supported

Smart

One-click installation on PC

Fault alarms via SMS and E-mail

Simple

Hierarchical management

Up to 25 years data storage with CSV files

Stable

Network Structure

NetEco 1000S

IE EmailAPP

SmartLogger

SUN2000 SUN2000 Weather

Station

Internet

Internet

SmartLogger

SUN2000 SUN2000 Weather

Station

IE

Ethernet

RS485 or PLC

Internet

Always Available for Highest Yields www.huawei.com/solar

Smart String I-V Diagnosis

RS485 or PLC

Click to Run

SmartLogger

Weather

Station

Internet

IE IE Click to Run

SUN2000

PV String

SmartLogger

Weather

Station

SUN2000

PV String

Diagnosis Report Diagnosis Report

FusionSolar Management Systemor NetEco1000S

Remote Diagnosis Solution Local Diagnosis Solution

EthernetInternet

Smart String I-V Diagnosis is an ideal solution for

scheduled and unscheduled maintenance of PV systems,

based on real-time scanning of all the string I-V curves. The

management system analyzes the curves and offers

diagnoses, finding out possible failures and promoting O&M

efficiency greatly.

Real-time on-line scanning of all PV string I-V curves within

PV blocks

High accuracy scanning and diagnosis reports

Smart

Scheduled or unscheduled scanning without extra facilities

One-click to run without any field work

Finding out possible PV failures and promoting O&M

efficiency

Efficient

Always Available for Highest Yields www.huawei.com/solar

Smart String I-V Diagnosis

Technical Specifications Smart String I-V Diagnosis

Configuration

Huawei SUN2000 Inverter SUN2000-36KTL/42KTL, or newer.

Huawei SmartLogger SmartLogger1000, SmartLogger2000

Management System NetEco1000s, FusionSolar Management System

Electrical

Scanning Time <1s

Number of Points per I-V Curve 128

Voltage Accuracy 0.5%rdg. + 1dgt. (rdg.>5, dgt.=0.3)

Current Accuracy 0.5%rdg. + 2dgt. (rdg.>0.3, dgt.=0.006)

System

Time Needed to Produce Diagnosis Reports 10 ~ 15 min. per PV block

Scanning Consistency All strings within one PV block

Environment Data Source Weather station, manual input

Identifiable Failures

Open-Circuited String Yes

String Current Mismatches Yes

Modules with Abnormal Output Yes

Cells with Low Output Current Yes

Diode Failure Yes

Low String Voltage Yes

Minor String Current Mismatches Yes

Panel Breakage Yes

High Series Resistance Yes

Low Short-Circuit Current Yes

Abnormal Power Loss Yes

String Offline Yes

Incorrect String Configuration Yes

String Malfunctioning Yes

Scanning Failed Yes

String Non-Output Yes

PID Yes

Always Available for Highest Yields www.huawei.com/solar

Smart String I-V Diagnosis

Diode Failure

Cu

rren

t [A

]

Voltage [V]

0

1

2

3

4

5

6

0 100 200 300 400 500 600 700 800

Normal Curve

Failed Curve

0

1

2

3

4

5

6

0 100 200 300 400 500 600 700 800

Normal Curve

Failed Curve

Abnormal String Current

Voltage [V]

Cu

rren

t [A

]