Technical Presentations

Author(s): Sam Maleki
Type:PDF Presentation
Downloaded: 18
Date: 2022-07-21

Capacitor energization, power system conversion, and load flow studies in EMTP858

Abstract
The addition of capacitor banks to the system may result in the frequency shift of the resonance modes in the system. This change may result in undesired interaction of the system with other elements ... see moreduring the transients. In addition, the energization of the capacitor banks may result in undesired over voltage and high inrush current (above the breaker capability limits).

Following steps has been taken to ensure the addition of the new cap bank to the system will not adversely affect the performance of the system

• System conversion to EMTP from PSSE using import tool function in EMTP for 5 busses away from the system
• Running the load flow and benchmarking the results
• Running the frequency scan of the system
• Performing the transient studies for 100 breaker closing instances
• Perform the statistical analysis (available tool in EMTP)
• Perform the worst-case scenario achieved during the statistical analysis

Tag(s): capacitor switching, overvoltage, inrush current, PSS/E import tool, frequency scan, statistical analysis

Author(s): Bob Arritt
Type:PDF Presentation
Downloaded: 15
Date: 2022-07-21

EMTP in Transmission Planning Research859

Abstract
The initiation of inverter-based generation (IBG) has been changing the characteristics of the grid. The addition of non-traditional generation sources gives rise to several grid concerns, such as red... see moreuced short-circuit fault current capacity and harmonic concerns. Because of this, the use of EMT studies has been becoming more common to accommodate special studies. This presentation will highlight a few examples of the use of EMTP in transmission level planning research.

Tag(s): inverter-based generation, short-circuit fault, harmonic analysis, transmission planning

Author(s): Muhammad Humayan
Type:PDF Presentation
Downloaded: 21
Date: 2022-07-21

Current Zero-Missing Phenomenon for Shunt Compensated Transmission Lines860

Abstract
The presentation shows the ZMP at the line and shunt reactor breakers using EMTP simulations performed while planning a large wind project in the USA. It also include a discussion on the mitigation me... see moreasures.

Tag(s): shunt reactor, transmission lines, current-zero missing, line energization, unbalanced fault

Author(s): Aboutaleb Haddadi, Hossein Hooshyar
Type:PDF Presentation
Downloaded: 11
Date: 2022-07-21

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

Author(s): Aboutaleb Haddadi, Hossein Hooshyar
Type:PDF Presentation
Downloaded: 7
Date: 2022-07-21

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