Utility scale PV Monitoring Solutions

MONITORING AND CONTROL OF PHOTOVOLTAIC SYSTEMS

Intelligent Solutions for effective O&M and lowest PV production cost

INTELLIGENT SOLUTIONS FOR MONITORING AND CONTROL OF PHOTOVOLTAIC SYSTEMS

* Data logging and communication concept based on IEC 61724 Ed.2 “Photovoltaic System Performance

Monitoring Guidelines for Measurement, Data Exchange and Analysis”;

Integrated grid interaction according to IEC 60870 for plant control

(reactive power, ramp rates etc.)

MONITORING AND CONTROL OF PHOTOVOLTAIC SYSTEMS

INTELLIGENT SOLUTIONSAT ALL LEVELS

Photovoltaic (PV) project investments require continuous, accurate and traceable plant monitoring data in order to determine the actual vs. design performance and to fulfil owner/investor expectations. Operators are interested to identify errors and losses in a reliable way to trigger appropriate actions for maximizing energy harvest during the total system lifetime.

Data loggers record all measurement parameters from the string level. Furthermore, meteorological data, inverter data and other state variables (switch gear, transformer status) are collected as well based on the modular concept.

Signal conditioning, data storage and transfer, compressing and communication in many ways are the strengths of this flexible data solution. *

Used in medium and large PV systems, design and production errors will be recognized on the DC side with high resolution on a string level. This accurate measurement is inverter independent and gives feedback about losses due to soiling, shading, PV Module degradation etc. .

Gantner.webportal and SCADA solutions for PV Performance monitoring, Data storage, Visualization, Analysis and automated Reporting provide transparency about the performance of your PV investment.

Mobile integration with HTML5/W3C.

SCADA LEVEL

DATA LEVEL

STRING LEVEL

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STRING LEVEL

With the monitoring of PV Module strings, design and production errors will be recognized with high resolution down to PV Module level.

Using DC shunts (vs. Hall Effect sensors) the string.bloxx provides current measurements typically 10 times more accurate and not susceptible to temperature variance. This equates to higher accuracy measurements and better understanding of true system performance. In addition, string voltage (up to 1000V)* and DC power on every string can be continuously monitored ensuring maximum system productivity.

Continuous measurement of both cabinet and panel temperatures, along with overvoltage monitoring and main switch control greatly and improves system diagnostics.

And all of this from a product that consumes less than 1.5W.

This accurate measurement is inverter independent and gives feedback about losses due to inverter malfunction, soiling, shading, PV Module degradation etc. .

The string.bloxx communicates via industry standard Modbus protocols for easy and fast integration. Fiber optic technology is used for longer distances.

Shunt measure-ment ensure high accuracy and good

stability:

Accuracy 0.25 %Stability 0.01 %/K

Consistently designed for 1000VDC*:

    Terminals, cables, connectors, housings

*1500VDC configuration also available

string.bloxx 08/16/24 string.CB 08/16/24

8, 16, 24 Input channels for string currents ± 26 A (shunt 1 mΩ)

Accuracy 0.25%

1 Input channel for string voltage 0…1000 VDC

2 Input channels for solar panel and cabinet temperature (Pt1000)

3 Digital inputs for monitoring of surge protection and main switch

Signal conditioning: DC power, linearization, average, scaling, alarm

1.5 W max. Power Consumption (10-55V)

Integrated LCD display

Interface RS485, Modbus RTU (optional OEM protocols)

8, 16 or 24 PV Module string inputs

Ground or Wall mounted enclosure

Designed for 1000 VDC

Monitoring of contacts, circuit breaker and protection device

Onboard display for direct access to all parameters (I, U, P, T)

Galvanic isolation of each channel, power and interface (1000 VDC)*

Ruggedized housing, IP65, UV and weather resistant, -35 °C to +80 °C

Switch fuse holder in Positive and Negative line

DC Load disconnection switch

INTELLIGENT SOLUTIONS FOR MONITORING AND CONTROL OF PHOTOVOLTAIC SYSTEMS

Unifies DC measurement, fuses, overvoltage protection & communication

Faster installation time

Cost reduction by 30%

Format Factor reduced by 35%

24 Input Chanel per board, modular concept

312 kWp per Unit

Customer specific pre-manufacturing

string.bloxx „All in One“ 24/12*

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Reduced risk for owner/investor and operator

Comprehensive Financial KPIs for Investors

One unified platform for effective and automa-ted PV plant management

Vendor-independent PV Plant monitoring

Provides baseline for energy prediction (day ahead), energy trading, etc.

Fully compliant w/ international standards like IEC 61724 Ed.2

Optimized PV production leads to increased asset value

DATA LEVEL

Gantner.webportal and SCADA solutions for PV Performance monitoring, Data storage, Visualization, Analysis and automated Reporting provide transparency about the performance of your PV investment. *

The intelligent data loggers record all measurement parameters from string level. Furthermore, meteorological data, inverter data and other state variables (switch gear, transformer status) are collected as well based on the modular concept. Protocols from all leading inverter manufacturers are implemented.

Signal conditioning, data storage and transfer, compressing, and communication in many ways are the strengths of this flexible data solution. Data transfer is possible by cable (Ethernet/LAN) or wireless (GPRS/3G or 4G, WiFi) – the loggers meet all standard security requirements (SSL) with lowest power consumption.

Communication concepts based on IEC 61724 Ed.2 “Photovoltaic System Performance Monitoring Guidelines for Measurement, Data Exchange and Analysis” and grid interaction according to IEC 60870 for plant control (reactive power, ramp rates etc.) are integrated.

Exemplary features of the data logger Q.reader

Integrated Plant control (reactive power, ramp rates etc.)

Analog and digital inputs and outputs via Q.series I/O modules

6 x RS485 fieldbus interface, ethernet

Ethernet interface for configuration and data transfer, 10Hz

Connectivity to inverter, I/O devices (e.g. weather station)

Industrial data storage, expandable via USB

Configurable monitoring (alarms, reports)

Direct link to the gantner.webportal or file transfer (.json, .csv) via FTP

Easy operation system – One device concept for >5000 string measurements

Up to 100MWp can be controlled by

one single Q.reader.

The data acquisition system grows with the requirements.

Distributed Q.series measurement

modules can be integrated at any

time.

Main benefits with gantner.webportal

* Functions and features adaptable based on customer needs.

SCADA LEVEL

INTELLIGENT SOLUTIONS FOR MONITORING AND CONTROL OF PHOTOVOLTAIC SYSTEMS

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www.gantner-environment.com

GermanyGantner Instruments Environment Solutions GmbH D-08297 Zwönitz

Gantner Instruments Test & Measurement GmbHD-64297 Darmstadt

AustriaGantner Instruments Test & Measurement GmbH A-6780 Schruns

USAGantner Instruments Inc. CA 92126 San Diego, USA

FranceGantner Instruments France F-75002 Paris

SwedenGantner Instruments Nordic AB SE-12030 Stockholm

SingaporeGantner (S.E.A.) Pte. Ltd. Singapore (659578)

IndiaGantner Instruments India Pte. Ltd. Perungudi, Chennai 600 096

Distribution- and Service partners in 31 further countries

Hong Kong Offi ce

Unit B, 9/F Fat Lee Ind. Building, 17 Hung To Road, Kwun Tong,Kowloon, Hong Kong

Beijing Offi ceRoom A1508, Yuanjing International Building, Yunjing East Road, No.1, Tongzhou Disctrict, Beijing 101101, China

Shanghai Offi ceRoom 1708, Yaojiang International Plaza, No.258, Wusong Road, Shanghai 200080, China

Xi‘an Offi ceRoom 1305, Xi‘an JiaoTong University Press Building, 10# XingQing South Road, Bei Lin District, Xi‘an 710049, China

Document ID:1504/ENG – Photovoltaic