ISGT Europe 2012, Berlin TU

Smart Grid Energy Management and Control

Based on Source-Grid-Demand-Synergy

Prof. Hongbin Sun

Dept of Electrical Eng, Tsinghua University

National Priority Basic Research Project of China

(973 project, 2013-2017)

Outlines

Challenges

1

Research Tasks 2

3

4 4

2

Presented at 2012 3rd IEEE PES ISGT Europe, Berlin, Germany, October 14 -17, 2012

1 Three Major Challenges

3

Mass Stochastic

Electric Vehicles

2

Large-scale Fluctuant Central

Renewables

1

Reliable Grid

3

4

Facing…, EMS(Energy Management System) is the common requirement!

EMS--BRAIN of power grid in operation

Presented at 2012 3rd IEEE PES ISGT Europe, Berlin, Germany, October 14 -17, 2012

Conventional EMS

Centralized Information and decision

5

Mass Information

Much Fast Decision

EMS Family——Intelligence Everywhere

Mass

Much

Architecture of Smart Grid EMS in Future

Autonomy + Synergy

Outlines

Challenges

1

Research Tasks (six sub-projects) 2

4 4

6

Presented at 2012 3rd IEEE PES ISGT Europe, Berlin, Germany, October 14 -17, 2012

Tasks:

n Modeling of large-scale fluctuant renewable (Central )

n Impact of large-scale fluctuant renewable on grids, incld T&D

n Autonomous control for large-scale renewable farm and cluster

n Mechanism of coordination between renewable farm and grids

Sub-project 1 (oriented to sources) Large-scale Renewable Central Integration & Autonomous Control

7

Purpose:

l Enhance grid-friendliness of

renewables

l Reduce risk of cascading trip-off

of renewable power generators

EMS

W - EMS

SVC / STATCOM SVC / STATCOM

P - EMS

SVC / STATCOM SVC / STATCOM

8

Sub-project 2(oriented to demands) Response and Autonomous Control of EV Aggregator

Tasks:

n Modeling of EV Aggregator under diverse charging mode

n Impact of mass EVs charging on power grid, including T&D

n Optimal management and autonomous control of EV

Aggregator considering transportation and energy

information

Purpose:

l Charge EV securely and efficiently

l Gain more additional value of EVs

from the grid side

Presented at 2012 3rd IEEE PES ISGT Europe, Berlin, Germany, October 14 -17, 2012

9

Sub-project 3 (oriented to grids) Online Distributed Network Modeling & Analysis

Tasks:

n Online distributed network modeling, including distributed

state estimation, parameter identification.

n Online distributed network analysis for whole source-

transmission-distribution-grid

n Grid operational risk assessment considering multiple

uncertainties

Purpose:

l More fast modeling & simulation suitable

for fast fluctuation of power flow

l Reduce operational risk for SG

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10 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 533

33.5

34

34.5

35

35.5

36

t(s)

d /(°

)

Sub-project 4 (oriented to stability) Stability analysis & control concerning multi uncertainties

Tasks:

n Stochastic dynamics with its simulation for SG

n Decoupled stability assessment under diverse stochastic

disturbance, including fast/slow stochastic power injections and

stochastic network reconfiguration.

n PMU based distributed fast control

Purpose:

l Enhance dynamic security for SG

Presented at 2012 3rd IEEE PES ISGT Europe, Berlin, Germany, October 14 -17, 2012

11

PV

wind

thermal

hydro EV

1 2min [J ( ),J ( )]

s.t. ( )

( )

=

£

x x

0 g x

c x 0

Sub-project 5 (oriented to S-G-D-synergy) Optimal dispatch concerning mix S-G-D

Tasks:

n Modeling of complementation

among diverse S&D

n Optimal dispatch considering

multiple objectives, including

economy, security and min of

clean energy abandon

n Distributed optimization method

for G-T-D-D-synergy

Purpose:

l Enhance ability of

accommodation of large

scale renewables

12

Sub-project 6(oriented to EMS family) Development of SG-EMS with demonstrations

Tasks:

n Distributed Architecture of EMS family with Cyber Physics

System Security

n Developing SG-EMS based on S-G-D-synergy

n Demonstrations of SG-EMS in China

Purpose:

l Verify benefits on accommodation of large scale renewables

l Verify benefits on reliability of SG

Presented at 2012 3rd IEEE PES ISGT Europe, Berlin, Germany, October 14 -17, 2012

13 1313

D-EMS S-EMS T-EMS V-EMS

B-EMS

H-EMS

W-EMS

μ-EMS

P-EMS

Three Demonstrations in the future 5 years

14

2012, Jilin province’s

total wind power

capacity: 3GW

2012, Qinghai

province’s total PV

capacity:2GW

2015, Shenzhen’s

total no. of EVs:150k

Presented at 2012 3rd IEEE PES ISGT Europe, Berlin, Germany, October 14 -17, 2012

15

Conclusions

n Update of EMS is a common requirement of

development of SG in China

n The vision of SG-EMS will be an EMS family with

interactions as well.

n The architecture of EMS will be transited to a

distributed one with (Autonomy + Synergy).

n Such a research will be supported by 973 project

for next 5 years in China.

n The door of collaboration is open!

Thank you for your attention

Presented at 2012 3rd IEEE PES ISGT Europe, Berlin, Germany, October 14 -17, 2012