Intelligent PV Farm Performance Management

The iGPV System

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PV Farm Performance Degradation

Uncontrolled and progressive reduction of energy generation causes increased O&M costs.

It’s necessary to maintain high levels of energy generation while minimising O&M costs.

Number of weak modules
1%
Drop in generated energy
6%
 
 

The weakest PV panels reduce performance of the entire farm. No more than 1% of all panels at a PV farm can cause a 6% drop in the total energy output.

Existing diagnostics take too long and repair costs are high. Subsequently failing panels cause an accumulation of the problem. In a year to year operation, these unrepaired panel defects cause a significant decrease in overall energy production.

Business goals are not achieved. The amount of sold energy decreases and production costs increase.

 

High Resolution Monitoring

iGPV System

Advantages of High Resolution Monitoring

Investor
O&M company
Installers

Benefits To Investors:

Faster Return On Investment (ROI)

Maintaining high levels of PV farm technical performance and subsequently high levels of energy production.

An optimization of service time and quality.

A remote verification and quality control of installed PV modules.

Service progress tracking and follow-up. Performance statistics of service crews.

Automatic service and maintenance logging.

Cost savings:

  • On insurance premiums
  • Due to lowering energy losses

Benefits to O&M companies:

Lowering operational costs

Service progress tracking and follow-ups.

Comprehensive planning of service location and scope

Faster failure detection and repair

Enhanced workplace safety

Benefits to installers:

Enhanced workplace safety

Optimisation of installation

A quality verification of installed PV modules without the need for their uninstallation

Support and facilitation of the PV farm start-up process

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How it works?

The system supervises all individual modules at a PV farm. Additionally, it can balance groups of modules connected into strings. All modules are monitored for their effectiveness, performance and fluctuations in energy output caused by defects at the modular level. The iGPV System offers the unique functionality of Remote Module Bypassing (RMB), which enables the remotely controlled detachment of malfunctioning PV modules. Disconnecting in real time underperforming modules, till they get replaced or repaired, maintains a high energy output of the monitored farm. The RMB can also be applied as a fire prevention mechanism. In “fire” mode, all PV modules get automatically disconnected thus eliminating the danger of electrocution during fire extinguishing intervention.

All data is sent wirelessly to DAM servers that correlate data timestamps and perform real time diagnostics. Subsequently, pre-processed data is sent to the Grid Management Centre (GMC) in the Cloud, in which the GMC is responsible for data and report delivery to registered users. The user can configure customized reports and take advantage of full cloud functionality such as remote access, wireless connectivity and mobility.

Such high resolution monitoring makes possible the optimization of energy production.

System components:

Wireless SMPV/SMPV-D/SMPV-F modules that are attached to photovoltaic panels. Every attached SMPV sensor measures precise values of current, voltage and power generated by its monitored PV panel, subsequently transmitting all monitored data wirelessly to the iGPV's DAM layer. SMPVs are powered by monitored PV panels and they begin monitoring immediately after powering up.

Local Data Aggregation Managers (LDAMs). An LDAM communicates with SMPV sensors that are connected to a network of photovoltaic modules. Each LDAM gathers monitoring data from its cluster of SMPV sensor modules. After preliminary real-time processing, the LDAM wirelessly sends the data to the Data Aggregation Manager (DAM).

Data Aggregation Manager (DAM). The DAM communicates with LDAM modules and receives the consolidated data obtained from individual SMPVs. Data consolidated at the DAM is transferred directly to a cloud-based iGPV server.

The iGPV Service is server software that runs and is provisioned in the cloud.

The iGPV Grid Management Centre is an application with a Graphical User Interface (GUI-based) accessible via internet browsers and smart phone apps.

The modern low-power wireless sensors are powered by their respective monitored PV panels.

A highly effective, unified and distributed data processing system that utilizes fog computing principles with full synchronization and automatic updating.

The cloud layer gives the system unlimited scalability.

Download files

  • System iGPV
  • Sensor SMPV-F
  • Sensor SMPV-D
  • DAM module
  • LDAM module