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Projects: Projects for Investigator
Reference Number	NIA2_NGESO045
Title	RealSim: Real-Time Phasor-EMT Simulations
Status	Started
Energy Categories	Other Power and Storage Technologies(Electricity transmission and distribution) 100%;
Research Types	Applied Research and Development 100%
Science and Technology Fields	ENGINEERING AND TECHNOLOGY (Electrical and Electronic Engineering) 100%
UKERC Cross Cutting Characterisation	Not Cross-cutting 100%
Principal Investigator	Project Contact No email address given National Grid plc
Award Type	Network Innovation Allowance
Funding Source	Ofgem
Start Date	01 June 2023
End Date	30 November 2024
Duration	ENA months
Total Grant Value	£450,000
Industrial Sectors	Power
Region	London
Programme	Network Innovation Allowance
Investigators	Principal Investigator	Project Contact , National Grid plc (100.000%)
	Industrial Collaborator	Project Contact , National Grid plc (0.000%)
Web Site	https://smarter.energynetworks.org/projects/NIA2_NGESO045
Objectives	"The project will be delivered in four work packages: WP1 – Integration of power system model of a part of GB grid into ePHASORSIM This will provide an ePHASORSIM-ready model of South Coast region for real-time applications and studies. Task 1.1. PowerFactory model adjustment of the South Coast power system for integration into real-time simulator. Deliverables (D1): Adjusted DGS format version of South Coast power system model for use in ePHASORSIM environment. Task 1.2. Establishing pin data file containing input/output signals and monitoring signals. Deliverables (D2): South Coast power system input/output pin data file for offline, HIL, and real-time simulation purposes.Task 1.3. Establishing ePHASORSIM model of the South Coast power system model. Deliverables (D3): ePHASORSIM simulation model of South Coast power system for offline, HIL, and real-time simulation purpose.Task 1.4. Offline Execution of ePHASORSIM model for transient stability assessment. Deliverables (D4): Report on offline simulation of ePHASORSIM model and PowerFactory model of South Coast power system.Task 1.5. HIL Execution of ePHASORSIM model for transient stability assessment. Deliverables (D5): Report on feasibility study of HIL-based experiments of ePHASORSIM model of South Coast power system. WP2 – Integration of power system model of a part of GB grid into HYPERSIM This WP provides a HYPERSIM model of South Coast region suitable for real-time simulations. Task 2.1. Establishing HYPERSIM model of the South Coast power system model. Deliverable (D6): To facilitate the model transfer, the PSCAD model is transferred to a unified data-base and then it is imported into the HYPERSIM.Task 2.2. HYPERSIM model adjustment of the South Coast power system for integration into real-time simulator. Deliverables (D7): HYPERSIM simulation model of South Coast power system with different technologies (LCC and VSC-HVDC lines) for offline, HIL, and real-time simulation purpose.Task 2.3. Offline Execution of HYPERSIM model for transient stability assessment. Deliverables (D8): Report on offline simulation of HYPERRSIM model and PSCAD model of South Coast power system.Task 2.4. HIL Execution of HYPERSIM model for transient stability assessment. Deliverables (D9): Report on feasibility study of HIL-based experiments of HYPERSIM model of South Coast power system. WP3 – Real-time operation of integrated models for transient stability assessments and controllers impacts This WP investigates that given a system condition, when and where the phasor and EMT simulations should be used. So far, there is no clear standard on allocating the type of simulation studies on a power system model. Task 3.1. EMT and phasor models steady-state analysis. Deliverables (D10): The states of the model are transferred for each busbar and the same power flow is established with HYPERSIM-PSCAD model to ensure the steady state responses are valid and error freeTask 3.2. Real-time EMT and phasor modes operation. Deliverables (D11): Real-time simulation model of the South Coast power system model in EMT and phasor modes WP4 –Developing Frameworks standards for application of real-time EMT and phasor simulations for GB power system This WP provides the guidelines to the operators to implement the EMT and phasor models of power system according to the given conditions of the system.Task 4.1. Standards and frameworks for real-time EMT, phasor simulations. Deliverables (D13): Report isdelivered on the completion of WP4 containing application of EMT and phasor models in real-time according to system conditions and roadmaps to ESO for real-time simulations platforms. In line with the ENAs ENIP document, the risk rating is scored Low. TRL Steps = 1 (2 TRL steps)Cost = 1 (£450k)Suppliers = 1 (1 supplier)Data Assumptions = 2Total = 5 (Low) " "The penetration of inverter-based resources and HVDC interconnections are rapidly growing into the GB power system in line with the integration of more renewable resources. Phasor-domain power system models excel at simulating large mixed networks with fast computations, however there are limitations to identifying electromagnetic transients and oscillatory interaction issues occurring in the GB power grid. This project aims to develop a real-time simulation of a region of GB power system (e.g., South Coast) in both phasor and EMT modes for transient stability assessments. It investigates when and where to use the phasor mode and EMT mode simulations for a given system condition and provide real-time simulation of the grid in that region for system stability & security and identification of stability risks. Full implementation of the project outcomes could reduce the costs associated with the early-stage identification of control interaction issues, and proper parameter tuning, which would result in more secure and reliable system operation. It would help identify the stability issues that may not have been identified using phasor mode-only models. The grid reinforcement required to solve the control interaction between inverter-based resources may cost hundreds of millions in the future if the correct technical measures are not introduced. The outputs of the project could also benefit consumers by reducing the risk of major power disruptions. It would enable a smooth transition to a decarbonised electricity network with greater renewable integration, improved planning and reduced energy bills for consumers. " "The project will deliver the following objectives through the four linked work packages: Conduct the phasor-domain and EMT models of a part of GB power system suitable for real-time simulation studiesUnderstanding the differences between phasor and EMT models for power system stability issuesDevelop a standard to identify when and where each phasor and EMT model of a region should be used, given a system conditionStability analysis based on real-time simulations e.g., for understanding the impact of controllers and their interactions on transient stability of the power system, and contingencies "
Abstract	The increasing penetration of inverter-based resources and HVDC interconnections have created unfavourable dynamic interactions, oscillations and low inertia related stability issues. With the planned continuous growth of inverter-based resources into the system, it is essential to develop real-time modelling and simulation studies for fundamental understanding and mitigation strategies of various types of oscillations. This project aims to develop a real-time simulation of a region of GB power system in both phasor and EMT modes for transient stability assessments. It investigates when and where to use the phasor mode and EMT mode simulations for a given system condition and provide real-time simulation of the grid in that region for system stability and security and identification of stability risks.
Publications	(none)
Final Report	(none)
Added to Database	01/11/23