Advanced Energy Management System (AEMS)

As utilities digitize their operations, their network assets need to be reliably mobilized to ensure energy transmission from multiple sources is maximized. High renewable energy penetration, intermittency and low inertia generate an increased level of threats. All of which requires a full understanding of real-time and future network status to enable a rapid response as changes occur.

GE’s Advanced EMS integrates the power of EMS, Renewables and WAMS  to enable operators to better operate, optimize and analyze while minimizing risk and increasing flexibility.

CIM is a leap forward in traditional modeling of electric networks.

This new application helps to manage time-based models across multiple enterprise-wide business domains (Operations, Planning, Protection) and with neighboring utilities. It provides a complete business process automation for importing, aggregating, validating, and exporting models in different formats, including CIM-16/CGMES. The models are validated for wide areas from a network security or market perspective, for the short and mid-term, and for multiple points in time.

Network Model Manager benefits:

• Model merge and validation capabilities
• Comprehensive Network Analysis Study for Wide Area and Look Ahead on single or merged models
• Elimination of duplicate modeling efforts
• Improves quality and accuracy of the model, thus reducing likelihood of errors
• Automation of manual processes and reduced response time to complete studies

At the Heart of the Advanced EMS solution, Network Security and Optimization ensures the network will not collapse while optimizing the operations. Key applications includes:

• Contingency Analysis
• Contingency Planning
• Corrective Controls
• Dynamic Line Rating
• Load Flow Calculation
• Loss Minimization
• Operator Guide
• Optimal Power Flow
• Quick Network Analysis
• Schemes (RAS)
• Security Constraint Dispatch
• Security Enhancement
• Short-Circuit Analysis
• Small Signal Stability
• Special Protection Schemes and Remedial Action
• State Estimation
• Topology Estimator
• Topology Processor
• Transient Stability
• Voltage Stability
• Voltage/VAR Dispatch
• Volt-Var Control (VVC)

Network Security and Optimization Benefits:

• More power flow transfer through the network
• Increase security with identification of true limits
• Improve reliability
• Preserve investment, thanks to extension points for special customer schemes

• Efficient assessment of a power system event
• Restoration plan less manually driven
• Avoid unintentional situations (de-energization, new island, non-sustainable frequency, excessive pick-up load, critical violations, etc.)
• Create clear operator awareness of the situation and restoration steps

Real-Time System Restoration Manager benefits:

• Faster restoration of power after islanding or blackout.
• A what-if assessment, thanks to digitization of existing restoration plans and trial using DTS.
• Auto-generation of new restoration plans matching available assets.
• NERC compliance > DTS auto-validation of plans.

The Dispatch Training Simulator (DTS) is a perfect replication of a real power grid. It can be initialized from a real time and historian snapshot. The Dynamic Dispatch Training Simulator (Dynamic DTS) captures transient behavior of the power system following a disturbance or switching action. It provides sub-second simulated phasor data in the DTS environment. Dynamic DTS is a fundamental solution to enable the training of WAMS applications to facilitate operator adoption.

DTS and Dynamic DTS benefits:

• OPEX cost savings: same technology as AEMS
• Fast set up of simulation with real time and historian data snapshot
• Trainee evaluation and grading
• First EMS-WAMS simulator

GE AEMS is available with both options: DTS (standalone) and Dynamic DTS integrated with DTS.

AEMS now embeds WAMS as an integral component. Network security and efficiency is augmented as a result of data resolution provided by phasor data and associated analysis. Coupled with a model approach, hybrid EMS-WAMS can provide powerful insights for operators.

WAMS applications:

• Islanding Monitoring & Management
• Disturbance Monitoring & Management
• Oscillation Monitoring (common and inter-area modes, and sub-synchronous)

WAMS benefits:

• Increases reliability and resiliency
• Maximizes transfer capacity
• Delivers high renewable penetration
• Accelerates disturbance analysis with more accurate data

GE Digital Energy's software now delivers an intuitive, predictive, and dynamic user interface (UI) and user experience (UX) to enhance overall situational awareness.