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EPSLAB Energy & Power System Laboratory

Virtual Power Plant (VPP)-Integration of Distributed Energy Resources

Presenter: Professor Hong-Tzer Yang

Affiliation: Dept. of E.E., NCKU, Taiwan

2EPSLAB Energy & Power System Laboratory

Developments of Smart Grid


Power System Energy Dispatch

Day-ahead (DA)

Market

Real-time (RT)Market

Dynamic voltage/freq.

control

1s~ ms5~15 minsday responding time

energy trading

Scheduling

Balancing

Ancillary Service

load forecasting

scheduled power

actual load

scheduled power

Forecasting Error

actual load

scheduled power

Unbalancing

Unexpected Tripping of RE

actual load

scheduled power

Unexpected Tripping


Energy Meters Communication Decision making/ Services

Home Automation

Network

Local area

network, i.e.

PLC, WiFi,

ZigBee

Aggregator

Wide Area Network, i.e.

GPRS/3G, WiMax,

Optical fiber

Data Management

System

Energy Control Platform

PMU (Phasor Measurement Unit)

Smart Meters

FTU (Feeder Terminal Unit)

Communication

Equipment

Transmission and

Distribution Control and

Management Devices

Electrical System

Supplying Optimization

Advanced Metering Infrastructure -AMI

Generation

Transmission

Distribution

Load Smart Appliances

Power Plant

Management System

Load Shedding/

Energy Saving

Transparent Energy Information

Real-time Demand Analysis

Optimized Electricity Dispatch

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Southern California Edison

Meter (AMI) is the interface

between customer loads and

energy management systems

and the grid

Data Center

In Data Center:

Billing/Customer service

Distribution automation

Energy management

Outage management

Smart HomeAMI

ADAS

80kW

Diesel

Generator Microgrid System

PCC

Advanced Distribution

Automation System


Integration between the VPP and Grid Operators

Ref: Deliverable D1.3, “Identifying EV smart control approaches under a VPP management”, EU project on MERGE,

http://www.evmerge.eu/images/stories/uploads/MERGE_WP1_D1.3_Final.pdf, Access on 22 March 2011.

Market

HEMS

PV HouseLoad

EV

private area

smartmeter

SM

EV Charging

Point

DG Unitpublic area

SM

Energy Storage System

SM

EV

SM

P/S P/S

TSO

DSO VPP

GENCO

BEMS

DGUnit

LoadESS

private area

SM

Integration of Distributed Energy Resources

VPP: Virtual Power Plant

http://www.evmerge.eu/images/stories/uploads/MERGE_WP1_D1.3_Final.pdf


Integration of

Distributed Energy Resources

(DER)


OLTC

Substation

Distributed Generator

Energy Storage

system (ESS)

PV system

Smart meter

Load

Wind power system

DDCC

ICCP

Comm link

SCADA/DMS

ADAS

Comm. link

Modbus/TCPSocket/TCP

Dataprocessing

ApplicationData Base

Distribution System analysis

Energy Dispatching Optimization

Substation-EMSDigsilent Powerfactory based system model

HMI

SCADA

Comm. link

Dataprocessing

ApplicationData Base SCADA

DNP 3.0/ IEC 61850

DER Dispatching Optimization

DER generation cost analysis

DER-EMS

HMI

OpenADR 2.0

Comm. link

Dataprocessing

ApplicationData BaseSCADA

HMI

DER Dispatching Optimization

DER generation cost analysis

DER-EMS

ADR Server

Building Energy Management System (BEMS)

Home Energy Management System (HEMS)

Ethernet

B(H)EMS Gateway

Demand Response Control

Optimal control of household

appliances

Home Area Network

(HAN)

B(H)EMS

Appliances

HMI

OpenADR 2.0

Energy Conversion and Communication Interface (ECCI)

Comm. interface

Power electronics interface

Real/ reactive power control

ECCI

ADR Server

Regional Load Forecasting

Renewable Generation Forecasting

DNP 3.0/ IEC 61850

DNP 3.0/ IEC 61850Ethernet

Integrated Applications of DERs

Substation EMS

DER-EMS DER-EMS DER-EMS

DERDER DER


DER-EMS & Substation EMS Architecture

PV

WT

EV Charging

Center

HEMS

BEMSESS

ESSFC

PV

PVPV

PV

Micro-Turbine

DER-EMS 2

DER-EMS 1

DER-EMS 3

Substation EMS

SubstationADAS EMS: Energy Management System


DER Energy Dispatching System

0:00 4:00 8:00 12:00 16:00 20:00 24:000

500

1000

1500

2000

2500

3000

3500

4000

Date

Pow

er

Consum

ption (

Watt

s)

Non-Schedulable Load Forecast of a Typical Large House on July 10th

Actual Data

Forecasted Data

Load and Renewable Generation Forecasting

0:00 4:00 8:00 12:00 16:00 20:00 24:000

5

10

15

20

25

30

35

40

45

50

Time

PV

Out

put

Pow

er (

W)

PV Output Power of a SP75 Module

Forecasting Error Probability Distribution and Risk Managements

Substation Power Dispatch Optimization

Algorithms

DIgSILENT BasedPower Flow Analysis

DER-EMS Optimal Dispatch and Scheduling

Algorithms

0 5 10 15 20 250

100

200

300

400

500

600

700

data1

data2

data3

data4

data5

data6

data7

data8

0 5 10 15 20 250

100

200

300

400

500

600

700

data1

data2

data3

data4

data5

data6

data7

data8

0 5 10 15 20 250

100

200

300

400

500

600

700

data1

data2

data3

data4

data5

data6

data7

data8

0 5 10 15 20 250

100

200

300

400

500

600

700

data1

data2

data3

data4

data5

data6

data7

data8

PV

FC

DG1

DG2

DG3 DR

grid

Total Load

0 5 10 15 20 250

100

200

300

400

500

600

700

data1

data2

data3

data4

data5

data6

data7

data8

0 5 10 15 20 250

100

200

300

400

500

600

700

data1

data2

data3

data4

data5

data6

data7

data8

hour of day

7

6

5

4

3

2

1

0

po

wer

(M

W)

30 40 50 600.4

0.5

0.6

0.7

0.8

0.9

50 100 150 2000

2

4

6

8

20 30 40 50 600.2

0.4

0.6

0.8

1

1.2

50 100 1500

1

2

3

4

DG_1

DG_2DG_3

FC

$/h

Power (kW)

DER Generation Cost Analysis

Analysis of Distribution System Reliability, Security, and Power Quality

DG

DR

ESS

DR Program

Substation-EMS Level

DER-EMS Level (Aggregator/ESCO)


Demonstration System

• Building Taipower Research Institute DER-EMS System

and Technical Verification

Automated Demand Response

Smart building energy management system

Microgrid demonstration system

250kW

PV, WT,Diesel generators, Micro-turbines

Substation-EMS Energy dispatch

decision-making platform

DER-EMS optimal

decision-making

platform

H(B)EMS

Power conversion interface

Power conversion interface

ADRS

ESS

DG

H(B)EMS

H(B)EMS

IEC 61850

DNP 3.0

P,Q output control

DR controlLoad saving control

OpenADR 2.0

Utility side

Electricity market programs

BEMS

Diesel-Engine Generator

PV

PV

ESS Wind-turbine

IEC 61850

DNP 3.0

(ESCO/Aggregator)

(TPRI)


Demonstration System250kW energy storage

PV smart inverter

SCADA Server

System topology

BSS/Diesel

RTU DI/DO

PV 3 & 15kW

Diesel 50kW

10kW wind turbine

SS3 high-voltage meterControl box

SCADA andUI

Microgrid Demonstration

BEMS and Smart Meters


Home (Building) Energy

Management System

H(B)EMS


HEMS in a Smart Grid Architecture

感測器

人機控管介面

AMIEV

小型再生能源

Home Gateway

智慧手機

AMI

LAN

資料收集器 WAN

AMI

Control Center

Advanced Distribution

Automation System

(ADAS)

AMI System

DC and AC

Microgrid

Data Center

Leading Project on Power

Energy Management System of

Smart Home (Building)

Sensor

Smart phone

Home Gateway

EV

User and machine control system

Residential Renewable Energy Systems


Air-conditioner Fuzzy Control

Cold Hotmedium

29.5o24.5o

32o22o

Calculate HI

ValueTemperature

and humidity

1.5/kWh 2.5/kWh

4/kWh2/kWh

medium Cheap Expensive

Electricity Tariff

regulatable

26℃ 27 ℃ 28 ℃ 關

0 0.25 0.5 0.75 1

Cold medium Hot

Cheap 28 27 26

medium OFF 28 27

Expensive OFF 28 28

Fuzzy Rule

Home Gateway

Zigbee module

Zigbee

IR

behavior learning


Home/Building Energy Scheduling

Min (Cost)

Subject to :

Comfort levels

Security

0 10 20 30 40 500

1000

2000

3000

4000

5000

Time (30min)

Pow

er

Co

nsum

ption

(W

atts) Scheduled Loads of a Typical Medium House

0 10 20 30 40 500

1000

2000

3000

4000

5000

Time (30min)

Pow

er

Co

nsum

ption

(W

atts)

Scheduled Loads of a Typical Medium House

Base Load

Stove

Refrigerator

Freezer

Air-Conditioner

Clothes Dryer

Clothes Washer

Dishwasher

Electric Water Heater

Electric Vehicle

0 2 4 6 8 10 12 14 16 18 20 220

0.5

1

1.5

2

2.5

3

3.5

4

Time (hour)

Pri

ce

($

/kW

h)

Proposed Time-of-Use PriceTime-of-use

0:00 4:00 8:00 12:00 16:00 20:00 24:000

500

1000

1500

2000

2500

3000

3500

4000

Date

Pow

er

Consum

ption (

Watt

s)

Non-Schedulable Load Forecast of a Typical Large House on July 10th

Actual Data

Forecasted Data

Residential load forecasting result

Optimization solving methods:

particle swarm optimization (PSO)Simulated Annealing (SA)Genetic Algorithms (GA)

Optimization objective

0:00 4:00 8:00 12:00 16:00 20:00 24:000

5

10

15

20

25

30

35

40

45

50

Time

PV

Out

put

Pow

er (

W)

PV Output Power of a SP75 Module

Renewable energy generation forecasting


User Interface Design – Web Based


User Interface Design

Appliances Control Renewable Energies and Forecasting

Air-Conditioner Control Load Scheduling


Suggestions of Load Scheduling


BEMS Demonstration System

Auto-curtains Temp., humidity,and CO2 sensor

Illuminance sensor

Motion detector

Smart Meeting Room

BEMS user interface


Automatic Demand Response

(ADR)


Evolution of Demand Response Systems

•Demand Response (DR)•Auto-Demand Response (ADR)•Open Automated Demand Response (OpenADR)

DR

ADR

OpenADR


Automated Demand Response Systemsand OpenADR Standards

23

Operator

Demand management operator

(Power company or

Wholesale industry)

VTNAutomated Demand

Response Server (ADRS)

N N N N N N N N N N N N

XML

Internet

Internet

XML

Using SOAP/REST

Web Service way

Send XML message

XML

OpenADR 2.0

ADR Aggregators

Site Server

OpenADR 2.0


BEMS-integrated Auto-DR System

•Development of VEN pull-mode system according to Open ADR 2.0a and 2.0b

–Meet Open ADR 2.0a and 2.0b consistency regulation

–Pass and obtain the VEN pull-mode certification• VEN Pull Positive/Negative Test Scenarios

• VEN Pull Security Test Scenarios

• Transport Test Cases

• Interface with BEMS for DR control– Integrated Testing with the EMS developed


AMI and Demand Response Framework

•AMI meters installed in Taipower test site

•Automatic Demand Response Server (ADRS)

•Energy Management System (EMS)


Automatic Demand Response

200 kW200 kW

當有事件時，預設選項

190 kW190 kW

virtual power plant (vpp)- integration of ... - smart gridncku)vpp... · smart meters ftu (feeder...

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