NCP Integrates AC Optimal Power Flow Model to Handle Modern Challenges
In the context of the ongoing energy transition, the importance of transmission networks is growing rapidly. The increasing penetration of intermittent and variable renewable energy sources, the need for operational flexibility, and the challenges of structural investments in transmission infrastructure necessitate more accurate and sophisticated modeling tools. These evolving demands make it essential to ensure the optimized use of energy resources, particularly in short-term dispatch planning, where operational flexibility is crucial for the security and reliability of the system.
The new AC OPF model proves to be an essential tool in supporting control and dispatch centers in their decision-making processes. By providing a more realistic and accurate representation of the network, it enhances the flexibility and reliability of the system, ensuring optimal use of energy resources.
Key enhancements in transmission network modeling
The AC OPF model introduces nonlinear constraints and provides a precise representation of voltage levels, tap transformers, more accurate active losses, and reactive power flows and injections. These enhancements are critical for maintaining network stability and operational efficiency.
Accurate voltage analysis
It delivers detailed voltage level assessments across the network, ensuring precise voltage modeling at each bus. This ensures voltage remains within safe limits, contributing to stable dispatch operations.
Reactive power representation
The model includes a robust representation of reactive power generation and balancing, which is crucial for maintaining network stability and operational efficiency.
Integration with NCP DC solution
The AC OPF solution is seamlessly integrated with NCP's established DC formulation. This robust and efficient algorithm combines the speed of the approximated method with the precision of the new representation. The AC OPF is solved to minimize active power deviations from the previous NCP execution while ensuring a feasible power system solution. This integration effectively leverages the advanced capabilities of AC OPF with the established strengths of NCP, including handling chronology and binary decisions.
New developments
Besides some important modeling refactoring tasks (pumped storage hydropower, hydraulic losses, elastic transactions, precedence constraints and joint reserve maximum limits), this version of NCP includes several modeling improvements, such as:
Hydro / Thermal power
Thermal inertia / synchronous condenser operating mode, stochastic sub-hourly fuel prices / inflows, hydro unit's power grid definition and non-linear consistency check, hydraulic friction loss selection.
Generic modeling
Muttualy exclusive constraints, start-up decision, commitment operative status, hydro unit variables, joint reserve assignment, battery's grid injection / loading, mathematical equation transcription.
General
Battery energy loading bids / prices, sub-hourly multiple joint reserve bids / system generation constraints, ramping limits for joint reserve assignment, renewable energy bids / prices, negative elastic transaction prices.
PSR Factory API
PSR Factory Application Programming Interface is a tool designed to streamline the creation and management of PSR models' databases and executions, enabling users to easily add new elements, update existing ones, or remove items like plants, systems, buses, and more.
Python automation
Factory is available in Python, which has a variety of packages that can be combined to manage studies, run simulations, and process results.
Multiple options to edit and run scripts
The API features a straightforward object model, extensive and precise documentation and a range of 'ready-to-use' examples for ease of implementation. It can be installed via pip and scripts can be edited on any text-editor or Python development environment.
Integration with SCADA and power system simulation tools
Factory can be integrated with SCADA systems and power system simulation tools. By importing data or utilizing real-time measurements, Factory can automate NCP runs on updated databases.
Documentation
Review all NCP's powerful capabilities in the documents below.
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NCP 5.28
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