Energy trends of increasing renewable penetration and decentralization of generation

assets create new industry challenges. These challenges include integration,

coordination, and maximizing return-on-investment (ROI) on distributed energy

resources (DERs), while providing network reliability and flexibility.

GE Vernova’s GridNode DER Management solution enables utilities and developers

to easily integrate renewable energy resources.

The GridNode DER Management solution includes the control and automation functions

to manage Active and Reactive Power, Power Factor, and Voltage at the point of

interconnection for your Renewable Energy Resources.

Key Benefits

• Improve Reliability by exploiting renewable generation capabilities in order to provide

optimal support to the grid

• Ease of deployment by utilizing GE Vernova’s configurable GridNode DER

Management Solution

• Increased revenue through equitable dispatch across renewable generation assets

and providing the capability to provide ancillary services to the grid such as Reactive

Power support

• Energy cost reduction through a solution that can efficiently manage, optimize and

integrate low cost renewable onto your grid

• Life extension by reducing the number of operations on distribution level voltage

transformers and capacitor banks through the optimal and flexible dispatch of your

renewable generation assets

Solutions and Services

• Engineering and Consulting Services

• Controls and HMI Development

• GridNode Microgrid Control and Automation Functions

• Protection, Control, Automation, and Communications Products

• Testing incl. Hardware-In-the-Loop Testing

• Integration and On-site Services

• Cyber Security Solutions

• Maintenance and Support

GridNode Control Functions

• Planned Islanding

• Seamless Unplanned Islanding and Fast Load Shedding

• Re-synchronization

• Blackstart

• Power Exchange with the grid

• Load Sharing

• Voltage and Reactive Power Management

• Power Factor Management

• Frequency Control

• Capacity Management

• Load Forecasting

GridNode Optimization

• Optimal DER Dispatch

• State of Charge Management

• Forecasting

• PV Smoothing

Market Interaction

• Ancillary Services Enablement

• IEEE 2030.5 for advanced utility and aggregator integration

GE Vernova provides a full spectrum of products and services that can contribute

to achieving the energy goals of our customers. GE Vernova designs, manufactures,

and supplies electrical protection and automation products, microgrid control

systems, network switches, gateways, and DER assets for this type of solution which

guarantees fast and low-cost deployment. GE Vernova’s GridNode Microgrid Solution

includes control and automation features such as real-time operation management,

transition management, dispatch control and optimization, operations planning, market

participation and advanced reporting and analytics.

GridNode Microgrid Controller – Hardware

The GridNode Microgrid Controller is the hardware platform

of choice for GE Vernova Grid Automation Microgrid solutions

for providing a trusted, powerful, and expandable platform.

GE Vernova’s GridNode software completes the all-in-one solution,

which includes:

• Configurator: used for programming HMI screens and

configuring communications.

• GridNode Functions: provides designed, developed, and

validated application function blocks that are flexible and

configurable based on the customers network.

• Viewer: provides a GUI for controlling and monitoring substation

systems from a station-level computer.

• Concentrator: runs on the GE Vernova Power Gateway (GPG)

and is the communications driver that gathers data from IEDs

and distributes data to different applications.

• Logic Box: includes the latest generation of IEC 61131-3

programming tools to develop complex substation logic.

Overload Curves

The curves can take one of three formats: standard, custom, or voltage dependent.

For all curve styles, the 469 retains thermal memory in a thermal capacity

used register which is updated every 0.1 second. The overload pickup determines

where the running overload curve begins.

The 469 standard overload curves are of standard shape with a multiplier value of

1 to 15.

The voltage dependent overload curves are used in high inertia load applications,

where motor acceleration time can actually exceed the safe stall time and motor

thermal limits. During motor acceleration, the programmed thermal overload curve

is dynamically adjusted with reference to the system voltage level. The selection

of the overload curve type and the shape is based on motor thermal limit curves

provided by motor vendor.

Complete integrated protection and

management of medium and large motors

The MultilinTM 469 Motor Protection System, a member of the SR family of relays,

provides protection, control, simplified configuration and advanced communications in

a cost effective industry leading draw-out construction. Designed for medium voltage

motors, the 469 delivers advanced protection with customizable overload curves and

single CT differential protection for added flexibility. The 469 also provides simplified

configuration using the Motor Settings Auto-Configurator, providing a quick and easy

set-up of motor parameters. Coupled with advanced protection and diagnostics, the 469

provides users the flexibility of multiple communication protocols allowing integration

into new and existing control networks.

Protection and Control

The 469 is a digital motor protection system designed to protect and manage

medium and large motors and driven equipment. It contains a full range of

selectively enabled, self contained protection and control elements as

detailed in the Functional Block Diagram and Features table.

Motor Thermal Model

The primary protective function of the 469 is the thermal model with six key elements:

• Overload Curves

• Unbalance Biasing

• Hot/Cold Safe Stall Ratio

• Motor Cooling Time Constants

• Start Inhibit and Emergency Restart

• RTD Biasing