Technical Presentations

Part 1 - Modeling the New York State Grid in EMTP861

Abstract
PART 1 - The New York state electric grid is transitioning to significantly higher shares of inverter-based resources (IBR) to achieve the clean energy goals of customers and the state. To address th... see moreis challenge, more detailed whole-system modelling in electromagnetic transient (EMT) domain has recently been used for system-level studies including long-term planning and IBR interconnection studies. Along the same line, an EMTP model of the New York State grid was developed and benchmarked in NYPA’s Advanced Grid Innovation Laboratory for Energy (AGILe). This presentation talks about the developed model and its use cases including interconnection studies for High-Voltage Direct Current (HVDC) and renewables.

Tag(s): inverter-based resources, interconnection studies, long-term planning, hvdc

Part 2 - Modeling the New York State Grid in EMTP862

Abstract
PART 2 -The New York state electric grid is transitioning to significantly higher shares of inverter-based resources (IBR) to achieve the clean energy goals of customers and the state. To address this... see more challenge, more detailed whole-system modelling in electromagnetic transient (EMT) domain has recently been used for system-level studies including long-term planning and IBR interconnection studies. Along the same line, an EMTP model of the New York State grid was developed and benchmarked in NYPA’s Advanced Grid Innovation Laboratory for Energy (AGILe). This presentation talks about the developed model and its use cases including interconnection studies for High-Voltage Direct Current (HVDC) and renewables.

Tag(s): inverter-based resources, interconnection studies, long-term planning, hvdc

Simulation of Inductive EM Interference Caused by an HVDC Underground Cable Link on a Railway System853

Abstract
Scope of the presentation is to present results regarding inductive electromagnetic interference (EMI) between a real HVDC link and the nearby communication cables of a railway system under pole-to-gr... see moreound fault conditions.
?he HVDC and the railway system route in parallel at a part of the onshore section of the HVDC link. The inductive EMI on the communication cable arises from magnetic field variation of the high-frequency components contained in the transient response of the fault current, excited by the HVDC link.

Consequently, it is expected that no inductive EMI will occur by the DC current in the case of the HVDC system normal operation (steady-state) either in bipolar or monopolar (current return though the electrode) mode. The induced transient voltages and currents are calculated using the Electromagnetic Transients Program (EMTP).

Tag(s): emi, wb cable, hvdc, interference

EMTP Development Roadmap: Real-code DLL Interface828

Abstract
Real-code models/DLLs
- Exact copy of a real control implementation
- Original source code of a controler


Why use real-code DLLs in EMT simulations?
- Ultimate accurac... see morey (same code as onsite)
- Manufacturer's intellectual property is protected


Applications:
- Modeling of windfarms, PV farms, HVDC, exciters, etc.

Tag(s): DLL Interface, control implementation, EMT simulations

POWERGRID experience with EMTP793

Abstract
To meet the increasing power demand, a number of extra high voltage (EHV) transmission lines is being added to the power system network, which enhances the complexity of power system network. It is es... see moresential duty of power engineer to fulfill the growing demand ensuring the reliability, stability & security of GRID. Transient simulation tools like EMTP play a vital role to provide the flexibility to power engineer for simulating/studying the various case scenarios which couldn’t be simulate in physical power system.


Such tools eventually help power engineer to build a sustainable and secure GRID. In POWERGRID, being a central transmission utility, various studies are being carried out to arrive the technical particular of new transmission system and optimize or fine tuning of existing system. Some of them i.e. Transient Recovery Voltage (TRV) study of 1200kV Transmission network, Smart Power from insulated earth wire of EHV transmission line and 1200kV Transformer Inrush current study are discussed in presentation. 1200kV National Test Station was established & successfully charged along with the transmission line in state of BINA in India.


TRV study was carried out for assessment of various test duties of 1200kV Circuit Breaker. Presentation cover the detailed discussion of 1200kV TRV study and a brief about the facilities like HIL, HVDC control Replica setup, STATCOM replica setup available at Powergrid Advanced Research and Technology Centre (PARTeC).