GridEye : For a safe, efficient and controlled Power Grid

More than a product, GridEye from DEPsys is a true network optimization platform, measuring, monitoring and controlling the low-voltage grid for an efficient integration of renewable energy sources at decentralized injection points.

Smart Grid Vision

To solve today's energy and pollution problems, DEPsys believes that the world should be powered entirely by renewable energy. By applying state-of-the-art information and communication technology, GridEye paves the road towards a future of smart grids and micro grids, where nature and humans work hand in hand.

The Distribution System Operator of the future will efficiently integrate all decentralized intermittent energy sources and tightly collaborate with consumers to maximize synergies between the low voltage grid and the automated end points.

Through new innovative pricing models and partnerships with consumers, the operator will be able to make use of automation systems and to guarantee energy supply in high quality and sufficient quantity.

The emergence of micro grids will challenge the traditional methods of low voltage operation even further, rendering the existence of smart grid solutions a very important element in these networks. By using optimization algorithms, as well as grid and local storage, no energy will remain unutilized.

GridEye is the smart grid platform that makes this vision come true and guarantees well functioning micro grid networks.

Paradigm Shift

An evolving Low Voltage Grid

Traditional electrical grids have been built decades ago, when production was central and consumption was taking place at the end points. Today’s energy transmission means that more and more prosumers are injecting energy locally in the network, creating instability in the grid.

Challenges are also existing in the newly developed micro-grid infrastructures. Many Distribution System Operators don't have a good view on the state of their grids. The result can be a network collapse with severe consequences. The traditional way to avoid this, is network reinforcement.

State-of-the-art information and communication technology provides a much more advanced and cost-effective solution to this pain point: the smart grid.

Main transitions
  • Limits of the static grid infrastructure
  • Emerge of micro grid environments
  • High number of decentralized intermittent energy sources
  • Introduction of local storage
  • Increase in home automation
  • Emerging E-Mobility
Distribution operator vision
  • Optimize the infrastructure investment
  • Make the network smart within minutes
  • Understand criticals parameters in the network
  • Make efficient use of all decentralized energy sources
  • Tailor the Smart Grid growth to precisely fit the operator needs
Smart Grid Objectives

Needs and wants expressed by system and micro grid operators

  • Network visibility
  • Voltage stability
  • Supply security
  • Energy efficiency
  • Infrastructure optimization

The Solution: GridEye

What is GridEye?

GridEye is the answer to the paradigm changes in the low voltage grid. It is a secure, resilient and adaptive real-time control platform for the management of low voltage grids.

Its connected smart modules measure network parameters and take expert actions to guarantee network quality and optimization of energy flows, both in connected as well as micro grid environments.

What does GridEye provide?

By providing an easy deployment, paired with unprecedented modularity and scalability, GridEye introduces a more practical way to respond to and manage the complex needs of the power grid in the presence of numerous renewable energy sources, storage systems storage systems and micro grid architecture.

How is GridEye different?

GridEye features a decentralized control algorithm, removing single points of failure, heavy data communication and the need for a heavy computing infrastructure.

Its control is model-less, thus guaranteeing simple installation and operation, as well as lower CapEx and OpEx.

Architecture

GridEye : Architecture

The GridEye platform is based on three layers, the hardware layer, the embedded software layer and the server layer.

Sensing and computing intelligence are integrated in the embedded software of each Base Module.

Hardware

Module

A GridEye Base Module can have one or more of the following functions.

Mesure
Measurement of electrical values at point of installation

Control
Control of active elements, e.g. inverters, heaters, batteries

Communicate
Gateway to other base modules for server communication

Installation

GridEye Base Modules are installed in transformer stations or electrical cabinets within minutes and can immediately begin to send values to the server as well as communicate with each other without the need for further configuration. The complexity of the deployment of the control function depends on the system to be controlled.

Only basic knowledge and tooling is needed to install a Base Module and there is no need to cut network power.

Default HSPA+/UMTS - GSM/GPRS communication is integrated in the Base Module. Other communication channels can be setup via four interfaces:

  • two IEEE-1588-compliant Ethernet ports
  • two isolated RS485 Modbus RTU ports.

 
The Base Module is compliant with the following standards:

  • IEC 61000-4-30 Class A (power quality)
  • IEC 61326-1/-2-2 (EMC)
  • IEC 61010-1/2-030 (safety)

Software

Grid Intelligence

For a perfect view of the grid, GridEye does not need to measure each network point, nor does it require a network model. Instead, it performs a sensitivity analysis establishing a relationship between measurement and control points, describing the correlation between a power change at a source and the resulting voltage change at the measurement point, expressed by a matrix of sensitivity coefficients. This provides a simple, yet very powerful way to explain the network behavior.

The advantages of a model-less approach are the lower investment due to fewer base modules, the lower operating costs due to the fact that no network parameters have to be managed and the simple installation and immediate operation (plug & play).

Model-less

Network knowledge is obtained by sensitivity analysis, rather than complete measurement or state estimation.

  • Simple installation and immediate operation (Plug & Play)
  • Low operating costs, as no network parameters need to be managed
  • Low investments due to fewer hardware modules
Application

GridEye control algorithms take into account real-time measurements, customer requirements and Distribution System Operators needs and constraints to send control commands to the different energy sources and storage systems, resulting in a stable network with secured supply.

The decentralized software is located on each Base Module and does not need a central server, which avoids a single point of failure, heavy data communication across the network, high volumes of data, as well as a heavy computing infrastructure.

Decentralized control

Network intelligence, control and optimization algorithms are implemented across all base modules, rather than on a central server

  • No single point of failure
  • No heavy dat communication
  • No data avalanche
  • No heavy computing infrastructure

Server


  • Calculations/analysis
  • Transformer load statistics
  • Max and min values for voltage, current and power
  • I/U diagrams
  • P/Q/S diagrams

The server is not the central computing point, but a system for visualization, configuration and data management. It can be installed on customer premises or hosted by DEPsys. In either case, the server application is accessed through a web browser. While the Base Modules measure in real-time, the server only receives values every 10 minutes (configurable), which is sufficient for visualization purposes. For support and maintenance reasons, DEPsys is able to access customer servers at any time (exception: customer data).

Configuration

The control algorithms will be configured to fit the operator and customer requirements. All parameters are defined through the user interface.

Viualisation

The User Interface provides a graphical view of the energy flows over time and the current network conditions. It also displays alerts.

Analysis

The server executes calculations and data analysis functions on the values contained in the database, e.g. transformer load statistics.

Database

The server maintains a database of all past measurement values that have been received, allowing for time-based analysis.

Export

Data contained in the database can be exported in CSV format for further use in Excel or external analysis tools.

Backup

The database can be archived and backuped.

 

Customer Benefits

Modular and scalable
Network knowledge

GridEye allows to understand what is the state of in the network by providing a real-time monitoring solution at the most critical points of the grid.

Network protection

GridEye informs before issues occur by alerting on significant voltage deviations or excess current.

Planning aid

GridEye helps optimizing the infrastructure investment by offerings insights into the critical points and thus avoiding unnecessary network extensions.

Resilient and secure
Power regulation

GridEye manages decentralized energy sources to reduce peak loads and thus avoid significant voltage deviations or excess current.

Energy optimization

GridEye optimizes the energy flow in the network to make efficient use of all decentralized energy sources.

Cost efficiency

GridEye allows Distribution System Operators decide on the number of measurement and management points that they need to deploy in order to accomplish their mission, and therefore significantly reduces the investment.

Plug'n'Play
Reduced complexity

GridEye provides a solution that does not require additional resources, as the physical installation is straight-forward and no network parameters are needed, therefore the system is literally ready to operate within minutes.

Pay-as-you-grow

With its modular hardware and software approach, GridEye allows Distribution System Operators to start small and to grow as they mature.

Customer focus

Like a toolbox, GridEye provides a solution that adapts to and evolves with the customer needs. With its political and strategic understanding and its technical knowledge, the DEPsys team provides the most pragmatic solution to the customer challenge.