1© 2017 The MathWorks, Inc.

Power Plant Model Validation (PPMV)

Using MATLAB and Simulink

Jonathan LeSage, PhD

Senior Application Engineer - Energy and Automation

MathWorks, Inc.

2

Reporting and

Documentation

Outputs for Design

Deployment

ShareExplore & Discover

Data Analysis

& Modeling

Algorithm

Development

Application

Development

Files

Software

Hardware

Access

Code & Applications

Automate

MATLAB: Technical Computing Workflow

3

Introduction to Simulink

4

Model Using Fundamental Approaches

First Principles

Simulink

Physical Components

Simscape Electrical

Complete Components

Specialized Technology Libraries

5

Introduction to Simscape Power Systems

3.125 MVA, 2.4kV

25kV

2250 HP

Load

Breaker

6

Generator/Excitation System connected to an Infinite Bus

G Generator

Infinite Bus

7

Generator/Excitation System connected to an Infinite Bus

8

The MATLAB and Simulink product family from MathWorks provides tools

that support automation and scaling of power plant model validation

(PPMV) to help address technical standards such as NERC MOD 26.

9

NERC Regulation (MOD 26/27)

Generator/Exciter Modeling & Validation

Challenge: Build a good dynamic model for a

Generator/Excitation System that matches the

actual equipment in the field and validate it

through offline/online testing

VC

VS

+

_

VREF

HV

GATE

ALTERNATE

UEL INPUTSV

UEL

LV

GATE

VOELV

OEL

ALTERNATE

OEL INPUTS

VUEL

+_

_

1

sTE

KE

VX=V

ES

E(E

FD)

EFD

+

+

+-

VF

VP V

RMAX

KA

1+sTA

VR

VRMAX

/KA

VX

+

sKF

(1 + sTF)

VRMIN

VRMIN

/KA

KI

sKD

s 1+sTD

KP + +

VEMIN

10

Exciter Model Generator Model

Field VoltageGen Voltage Gen Voltage

Applying Test Data for Parameter Estimation

11

Applying Test Data for Parameter Estimation

Gen VoltageGen Voltage Field Voltage

12

Exciter Parameter Estimation

Gen Voltage Field Voltage

13

Exciter Parameter Estimation with 2.5% Voltage Step

14

Power

System

Simulation

Software

MATLAB & Simulink based Workflow

MATLAB & Simulink

Data

Processing

Model

Development

Parameter

Estimation

Test Data

Automated

15

Both Manual and Automatic Parameter Estimation

16

Both Manual and Automatic Parameter Estimation

17

Offline Power Plant Testing

Establish a test harness to perform offline

power plant model validation using step

tests or other input data.

Continuously verify your model validation

by using multiple sets of input data to

estimate a single power plant model.

18

Online Power Plant Performance Monitoring

Establish a test harness to perform online

power plant model validation by replaying

synchrophasor data through your

simulation model.

Continuously verify your model validation

by using multiple sets of input data to

estimate a single power plant model.

VPOC

PPOC

QPOC

PSIM

QSIM

19

Central Station Solar Plant One-line Diagram and Controls

Interconnection

Transmission Line

Station

Transformer

Plant-level Reactive

Compensation

Pad-mounted

Transformer

PV System

Equivalent

20

Central Station Solar Plant in Simscape Electrical