NERC Modeling Assessments

capabilities

Interconnection-wide Modeling

Power engineers carry out a variety of acceptable models for interconnection-wide modeling utilizing software tools like Siemens PSSE, GE PSLF, PowerWorld Simulator PSSE, PowerWorld Simulator PSLF, PowerTech DSATools PSSE, PowerTech DSATools PSLF, V&R Energy POM PSSE, and V&R Energy POM PSLF. Below are some acceptable models according to the North American Electric Reliability Corporation. To download the latest list, visit the NERC Modeling Assessments page.

Model Type	Model Description
Machine Model	Cross Compound WECC Type F
Machine Model	Generator Type F
Machine Model	Generator Type J
Machine Model	Salient Pole Frequency Changer Model
Machine Model	Synchronous Generator Model combining GENQSC and GENESC
Machine Model	“Two-cage” or “One-Cage” Induction Generator
Signal Playback Models	Play-In of Voltage and/or Frequency Signal
Signal Playback Models	Frequency Playback Model
Signal Playback Models	Play-In of Generator Field Voltage
Signal Playback Models	Delivers Played-In Signal to Dynamic Simulation Models
Signal Playback Models	Play-In of Voltage Regulator and Governor Reference Settings
Signal Playback Models	Play-In Turbine Power
Signal Playback Models	Thevenin Source of Defined Voltage Amplitude and Frequency
Renewable Energy Resource Models	Generic Type 1 WTG Generator Model (Fixed-speed induction generator)
Renewable Energy Resource Models	Generic Type 2 WTG Generator Model (Variable slip induction generator with variable rotor resistance)
Renewable Energy Resource Models	Generic Type 2 WTG Rotor Resistance Control Model
Renewable Energy Resource Models	Generic Type 1 Two Mass Turbine Model
Renewable Energy Resource Models	Generic Type 2 Two Mass Turbine Model
Renewable Energy Resource Models	Generic Type 3 and 4 WTG Drive Train Model
Renewable Energy Resource Models	Generic Type 3 and 4 WTG Drive Train Model
Renewable Energy Resource Models	Generic Type 3 and 4 WTG Pitch Control Model
Renewable Energy Resource Models	Generic Type 3 and 4 WTG Pitch Control Model
Renewable Energy Resource Models	Generic Type 2 and 2 WTG Pitch Control Model
Renewable Energy Resource Models	Generic Type 3 and 4 WTG Aerodynamics Model
Renewable Energy Resource Models	Generic Type 3 and 4 WTG Torque Control Model
Renewable Energy Resource Models	Linearized Model of PV Panel Output Curve
Renewable Energy Resource Models	Linearized Model of PV Panel Solar Irradiance Profile
Renewable Energy Resource Models	Generic Phase 2 Renewable Energy Generator/Converter Model
Renewable Energy Resource Models	Generic Phase 2 Renewable Energy Generator/Converter Model
Renewable Energy Resource Models	Generic Phase 2 Renewable Energy Electrical Controls Model
Renewable Energy Resource Models	Generic Phase 2 Renewable Energy Plant Controller
Renewable Energy Resource Models	Generic Plant Control Model
Renewable Energy Resource Models	Generic Phase 2 Energy Storage Electrical Controls
Renewable Energy Resource Models	Generic Phase 2 Renewable Energy Electrical Controls Model
Renewable Energy Resource Models	Generic Phase 2 Renewable Energy Auxiliary Control Model – Type 3 WTGs
Renewable Energy Resource Models	Generic Phase 2 Renewable Energy Auxiliary Control Model – Type 4 WTGs and Solar PV
Renewable Energy Resource Models	Generic Phase 2 Renewable Energy Auxiliary Control Model – SVC
Renewable Energy Resource Models	Generic Phase 2 Renewable Energy Auxiliary Control Model – FACTS Device
Renewable Energy Resource Models	Generic Phase 2 Renewable Energy Auxiliary Control Model – Synchronous Condenser
Renewable Energy Resource Models	Solar Photovoltaic Generator/Converter Model
Renewable Energy Resource Models	Solar Photovoltaic Electrical Control Model
Renewable Energy Resource Models	Distributed photovoltaic system
Renewable Energy Resource Models	Distributed Energy Resource Generator/Converter Model
Excitation System Models	IEEE Std 421.5 Type AC1A
Excitation System Models	IEEE Std 421.5 Type AC1C
Excitation System Models	Modified IEEE Std 421.5 Type AC1A
Excitation System Models	IEEE Std 421.5 Type AC2A
Excitation System Models	IEEE Std 421.5 Type AC2C
Excitation System Models	IEEE Std 421.5 Type AC3A
Excitation System Models	IEEE Std 421.5 Type AC3C
Excitation System Models	IEEE Std 421.5 Type AC4A
Excitation System Models	IEEE Std 421.5 Type AC4C
Excitation System Models	IEEE Std 421.5 Type AC5A
Excitation System Models	IEEE Std 421.5 Type AC5C
Excitation System Models	IEEE Std 421.5 Type AC6A
Excitation System Models	IEEE Std 421.5 Type AC6C
Excitation System Models	Modified IEEE Std 421.5 Type AC6A (added speed multiplier)
Excitation System Models	IEEE Std 421.5 Type AC7B*
Excitation System Models	IEEE AC7B Excitation System Model w/ OEL for Brushless Exciters and GE EX2100 Controls
Excitation System Models	IEEE Std 421.5 Type AC7C
Excitation System Models	IEEE Std 421.5 Type AC8B
Excitation System Models	Modified IEEE Std 421.5 Type AC8B
Excitation System Models	IEEE Std 421.5 Type AC8C
Excitation System Models	IEEE Std 421.5 Type AC9C
Excitation System Models	IEEE Std 421.5 Type AC10C
Excitation System Models	IEEE Std 421.5 Type AC11C
Excitation System Models	IEEE Std 421.5 Type DC1A
Excitation System Models	IEEE Std 421.5 Type DC1C
Excitation System Models	IEEE Std 421.5 Type DC2A
Excitation System Models	IEEE Std 421.5 Type DC2C
Excitation System Models	IEEE Std 421.5 Type DC3A
Excitation System Models	IEEE Std 421.5 Type DC4B
Excitation System Models	IEEE Std 421.5 Type DC4C
Excitation System Models	IEEE Std 421.5 Type ST1A
Excitation System Models	IEEE Std 421.5 Type ST1C
Excitation System Models	IEEE Std 421.5 Type ST2A
Excitation System Models	IEEE Std 421.5 Type ST2C
Excitation System Models	IEEE Std 421.5 Type ST3A
Excitation System Models	IEEE Std 421.5 Type ST3C
Excitation System Models	IEEE Std 421.5 Type ST4B
Excitation System Models	Modified IEEE Std 421.5 Type ST4B (without OEL & UEL inputs and Vgmax)
Excitation System Models	IEEE Std 421.5 Type ST4C
Excitation System Models	IEEE Std 421.5 Type ST5B**
Excitation System Models	IEEE Proposed Type ST5B Excitation System
Excitation System Models	IEEE Std 421.5 Type ST5C
Excitation System Models	IEEE Std 421.5 Type ST6B
Excitation System Models	IEEE Std 421.5 Type ST6C
Excitation System Models	IEEE Std 421.5 Type ST7B
Excitation System Models	IEEE Std 421.5 Type ST7C
Excitation System Models	IEEE Std 421.5 Type ST8C
Excitation System Models	IEEE Std 421.5 Type ST9C
Excitation System Models	IEEE Std 421.5 Type ST10C
Excitation System Models	1968 IEEE Type 1+B127
Excitation System Models	Modified 1968 IEEE Type 1
Excitation System Models	Modified 1968 IEEE Type 1
Excitation System Models	1968 IEEE Type 2
Excitation System Models	1968 IEEE Type 3
Excitation System Models	1968 IEEE Type 4
Excitation System Models	Modified 1968 IEEE Type 4
Excitation System Models	Modified 1968 IEEE Type 4
Excitation System Models	1981 IEEE Type AC1
Excitation System Models	Modified 1981 IEEE Type AC1 (modified rate feedback source and with added speed multiplier)
Excitation System Models	Modified 1981 IEEE Type AC1
Excitation System Models	1981 IEEE Type AC2
Excitation System Models	1981 IEEE Type AC3
Excitation System Models	Modified 1981 IEEE Type AC3
Excitation System Models	1981 IEEE Type AC4
Excitation System Models	1981 IEEE Type DC1
Excitation System Models	Modified 1981 IEEE Type DC1
Excitation System Models	Modified 1981 IEEE Type DC1
Excitation System Models	1981 IEEE Type DC2
Excitation System Models	Modified 1981 IEEE Type DC2
Excitation System Models	1981 IEEE Type DC3
Excitation System Models	1981 IEEE Type ST1
Excitation System Models	1981 IEEE Type ST2
Excitation System Models	Modified 1981 IEEE Type ST2
Excitation System Models	Modified 1981 IEEE Type ST2
Excitation System Models	1981 IEEE Type ST3
Excitation System Models	Modified 1981 IEEE Type ST3
Excitation System Models	General Purpose Rotating Excitation System Model
Excitation System Models	General Purpose Rotating Excitation System Model
Excitation System Models	Proportional/Integral Excitation System Model
Excitation System Models	Manual Excitation Control with Field Circuit Resistance
Excitation System Models	Bus or Solid Fed SCR Bridge Excitation System Model
Excitation System Models	Bus or Solid Fed SCR Bridge Excitation System Model Type NEBB (NVE)
Excitation System Models	Bus or Solid Fed SCR Bridge Excitation System Model Type NI (NVE)
Excitation System Models	IVO Excitation System Model
Excitation System Models	ELIN Excitation System
Excitation System Models	Basler Static Voltage Regulator Feeding DC or AC Rotating Exciter
Excitation System Models	Brown-Boveri Transformer-Fed Static Excitation System Model
Excitation System Models	Static PI Transformer Fed Excitation System
Excitation System Models	VATECH (ELIN) Static Excitation System with PSS
Excitation System Models	AEP Rockport excitation system
Excitation System Models	Czech Proportional/Integral Excitation System Model
Excitation System Models	High Dam Excitation System Model
Power System Stabilizer	Transient Excitation Boosting Stabilizer Model
Power System Stabilizer	Dual-Input Signal Power System Stabilizer Model
Power System Stabilizer	1981 IEEE Power System Stabilizer
Power System Stabilizer	IVO Stabilizer Model
Power System Stabilizer	Ontario Hydro Delta-Omega Power System Stabilizer
Power System Stabilizer	Ontario Hydro Delta-Omega Power System Stabilizer
Power System Stabilizer	IEEE Std 421.5-2005 Single-Input Stabilizer Model
Power System Stabilizer	1992 IEEE Type Dual-Input Signal Stabilizer Model
Power System Stabilizer	IEEE Std 421.5-2005 PSS2B Dual-Input Stabilizer Model
Power System Stabilizer	IEEE Std 421.5-2016 PSS2C Dual-Input Stabilizer Model
Power System Stabilizer	IEEE Std 421.5-2005 PSS3B Dual-Input Stabilizer Model
Power System Stabilizer	IEEE Std 421.5-2016 PSS3C Dual-Input Stabilizer Model
Power System Stabilizer	IEEE Std 421.5-2005 PSS4B Dual-Input Stabilizer Model
Power System Stabilizer	IEEE Std 421.5-2016 PSS4C Dual-Input Stabilizer Model
Power System Stabilizer	IEEE Std 421.5-2016 PSS5C Dual-Input Stabilizer Model
Power System Stabilizer	IEEE Std 421.5-2016 PSS6C Dual-Input Stabilizer Model
Power System Stabilizer	IEEE Std 421.5-2016 PSS7C Dual-Input Stabilizer Model
Power System Stabilizer	PTI Microprocess-Based Stabilizer Model
Power System Stabilizer	PTI Microprocess-Based Stabilizer Model
Power System Stabilizer	Speed Sensitive Stabilizer Model
Power System Stabilizer	ASEA Power Sensitive Stabilizer Model
Power System Stabilizer	Power Sensitive Stabilizer Model
Power System Stabilizer	Power Sensitive Stabilizer Model
Power System Stabilizer	Dual-Input Signal Power System Stabilizer Model
Power System Stabilizer	Dual Input Stabilizer (IEEE Type PSS2A) + Voltage Boost Signal Transient Stabilizer and Vcutoff
Power System Stabilizer	WECC Supplementary Signal for Static Var System
Power System Stabilizer	Synchronous Condenser Auxiliary Control Model
Power System Stabilizer	Single Input PSS for SVSMO1, SVSMO2, and SVSMO3
Current Compensation Models	Cross-Current Compensation Model with Reactive Current Feedback
Current Compensation Models	Voltage Regulator Compensating Model
Current Compensation Models	Cross and Joint Current Compensation Model
Current Compensation Models	IEEE Std 421.5 Current Compensator
Current Compensation Models	Remote Bus Voltage Signal Model
Turbine-Governor Models	Steam Plant Boiler Turbine-Governor Model
Turbine-Governor Models	Combined Cycle Plant Steam Turbine Model
Turbine-Governor Models	General Purpose (Gas Turbine & Single Shaft CC) Turbine-Governor Model
Turbine-Governor Models	General Governor Model with Frequency-Dependent Fuel Flow Limit
Turbine-Governor Models	General Governor Model with GE Gas Turbine Control Features
Turbine-Governor Models	Single Shaft Combined Cycle Plant Model
Turbine-Governor Models	Woodward 2301 Governor and Basic Turbine Model
Turbine-Governor Models	Brown-Boveri Turbine-Governor Model
Turbine-Governor Models	Cross Compound Turbine-Governor Model
Turbine-Governor Models	Woodward Diesel Governor Model
Turbine-Governor Models	Woodward Diesel Governor Model
Turbine-Governor Models	Hydro Turbine-Governor Model
Turbine-Governor Models	Hydro Turbine-Governor Lumped Parameter Model
Turbine-Governor Models	Fourth Order Lead-Lag Hydro-Turbine Model
Turbine-Governor Models	Hydro Turbine-Governor Traveling Wave Model
Turbine-Governor Models	Hydro Turbine-Governor Model
Turbine-Governor Models	Model to Manage Parameter Data for h6b Hydro Turbine-Governor Model
Turbine-Governor Models	Hydro Governor Model for up to 4 Units on Common Penstock
Turbine-Governor Models	Hydro Turbine-Governor (plants w/ straightforward penstock config + PID governor, blade angle for Kaplan)
Turbine-Governor Models	Hydro Turbine w/ Woodward Electro-Hydraulic PID Governor, Penstock, Surge Tank, and Inlet Tunnel
Turbine-Governor Models	1981 IEEE Type 3 General Mechanical-Hydraulic Model
Turbine-Governor Models	Hydro Turbine-Governor (plants with straightforward penstock config + hydraulic govs of ‘dashpot’ type)
Turbine-Governor Models	IVO Turbine-Governor Model
Turbine-Governor Models	Hydro Turbine-Governor Model
Turbine-Governor Models	Pratt & Whitney Turboden Turbine-Governor Model
Turbine-Governor Models	Torsional-Elastic Shaft Model for 25 Masses
Turbine-Governor Models	Steam Turbine-Governor Model
Turbine-Governor Models	Czech Hydro or Steam Turbine-Governor Model
Turbine-Governor Models	Tail Water Depression Hydro Governor Model 1
Turbine-Governor Models	Tail Water Depression Hydro Governor Model 2
Turbine-Governor Models	Combined Cycle – Single Shaft Turbine-Governor Model
Turbine-Governor Models	Woodward Electronic Hydro Governor Model
Turbine-Governor Models	Woodward PID Hydro Governor Model
Turbine-Governor Models	WECC Double Derivative Hydro Governor Model
Turbine-Governor Models	Hydro Turbine with American Governor Company controller
Turbine-Governor Models	PID Governor, Double-Derivative Governor, and Turbine (WECC GP governor, WECC G2 turbine-governor)
Turbine-Governor Models	Modified IEEE Type 1 General Steam Turbine-Governor Model w/ Speed Deadband
Load Controller Models	Turbine Load Controller Model
Load Models	Induction Generator Model with Rotor Flux Transients
Load Models	Induction Motor Model with Rotor Flux Transients
Load Models	Induction Generator Model with Rotor Flux Transients
Load Models	Induction Motor Model with Rotor Flux Transients
Load Models	Induction Motor Model
Load Models	Induction Motor Model
Load Models	Induction Motor Model
Load Models	IEEE Load Model
Load Models	Load Frequency Model
Load Models	Extended-Term Load Reset Model
Load Models	Complex Load Model
Load Models	Composite Load Model
Load Models	Composite Load Model w/ DER Component
Load Models	Composite Load Model w/ Modular Capability
Load Models	Performance-Based Model of Single Phase Air Conditioner Motor Model
Static Var Systems and FACTS	WECC Generic Continuous Control SVC Model
Static Var Systems and FACTS	WECC Generic Discrete Control SVC Model
Static Var Systems and FACTS	WECC Generic STATCOM-Based SVC Model
Static Var Systems and FACTS	SCR Controlled Static VAR Source Model
Static Var Systems and FACTS	SCR Controlled Static VAR Source Model
Static Var Systems and FACTS	SCR Controlled Static VAR Source Model
Static Var Systems and FACTS	WECC Controlled Static VAR Source Model
Static Var Systems and FACTS	WECC Controlled Static VAR Source Model
Static Var Systems and FACTS	Switched Shunt Model
Static Var Systems and FACTS	American Superconductor DSMES Device
Static Var Systems and FACTS	Static Condenser FACTS Model
Static Var Systems and FACTS	Static Condenser (modeled as FACTS in power flow)
Static Var Systems and FACTS	ABB SVC Model
Static Var Systems and FACTS	SVC for Switched Shunt
Static Var Systems and FACTS	SVC for Switched Shunt
Static Var Systems and FACTS	EPRI Superconducting Electromagnetic Energy Storage FACTS Model
Static Var Systems and FACTS	EPRI Battery Energy Storage FACTS Model
Protection and Other Models	Generic Generator Protection System
Protection and Other Models	Under-/Over-Frequency Generator Bus Disconnection Relay
Protection and Other Models	Under-/Over-Frequency Generator Trip Relay
Protection and Other Models	Under-/Over-Voltage Generator Bus Disconnection Relay
Protection and Other Models	Under-/Over-Voltage Generator Trip Relay
Protection and Other Models	Time-Inverse Overcurrent Relay
Protection and Other Models	Definite Time Underfrequency Load Shedding Relay
Protection and Other Models	Definite Time Undervoltage Load Shedding Relay
Protection and Other Models	Definite Time Undervoltage Load Shedding Relay
Protection and Other Models	Out-of-Step Relay with 3 Zones (Lens, Tomato, or Circle)
Protection and Other Models	Out-of-Step Relay with 3 Zones (Lens, Tomato, Circle, or Rectangle)
Protection and Other Models	Out-of-Step Mho Relay with Blinders
Protection and Other Models	Metal Oxide Varistor and Bypass Protection for Series Capacitor
Protection and Other Models	Switched Capacitor Bank Model
Protection and Other Models	Mechanically Switched Capacitor
Protection and Other Models	Mechanically Switched Reactor
Protection and Other Models	Mechanically Switched Line Reactor
Protection and Other Models	Mechanically Switched Shunt
Protection and Other Models	Mechanically Switched Shunt
Protection and Other Models	Over-Excitation Limiter for Synchronous Machine Excitation System
Protection and Other Models	IEEE Std 421.5-2016 OEL1B Overexcitation Limiter
Protection and Other Models	IEEE Std 421.5-2016 OEL2C Overexcitation Limiter
Protection and Other Models	IEEE Std 421.5-2016 OEL3C Overexcitation Limiter
Protection and Other Models	IEEE Std 421.5-2016 OEL4C Overexcitation Limiter
Protection and Other Models	IEEE Std 421.5-2016 OEL5C Overexcitation Limiter
Protection and Other Models	IEEE Std 421.5-2016 UEL1 Underexcitation Limiter
Protection and Other Models	IEEE Std 421.5-2016 UEL2 Underexcitation Limiter
Protection and Other Models	IEEE Std 421.5-2016 UEL2C Underexcitation Limiter
Protection and Other Models	IEEE Std 421.5-2016 SCL1C Stator Current Limiter
Protection and Other Models	IEEE Std 421.5-2016 SCL2C Stator Current Limiter
Protection and Other Models	IEEE Std 421.5-2016 DEC1A Discontinuous Excitation Control
Protection and Other Models	IEEE Std 421.5-2016 DEC2A Discontinuous Excitation Control
Protection and Other Models	IEEE Std 421.5-2016 DEC3A Discontinuous Excitation Control
Protection and Other Models	Load Tap Changer Model
Protection and Other Models	Variable Frequency Transformer or Rotary Phase Shift Regulator

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NERC Modeling Assessments

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Interconnection-wide Modeling

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