PEA Thailand 1

PEA Microgrid

Prachya LaochooEngineer

Smart Grid Planning Division, PEA, Thailand

PEA Thailand 2

IEEE: a group of interconnected loads and DistributedEnergy Resources (DER) with clearly defined electricalboundaries that acts as a single controllable entity withrespect to the grid. It can connect and disconnect from thegrid to enable operation in both grid-connected or islandmodes.

IEC TS 62898-2-2018: group of interconnected loads and distributed

energy resources with defined electrical boundaries that acts as a single

controllable entity and is able to operate in both grid-connected or island mode.

Microgrid

PEA Thailand 3

• To accumulate energy produced by large, less responsive thermal generation plants (also RE) and then re-dispatch it based on peak demand.

• Storage facilities were largely financed by arbitrage (buying energy at a low price and selling it at a higher price).

• Energy storage currently contributes to reliability, efficiency, power quality, transmission optimization, black-start functions, and support Demand Response (DR) function.

Load Duration Curve 2

9000.00

11000.00

13000.00

15000.00

17000.00

19000.00

21000.00

23000.00

25000.00

1 834 1667 2500 3333 4166 4999 5832 6665 7498 8331 9164 9997 10830 11663 12496 13329 14162 14995 15828 16661 17494

Hours ( x 2 )

Sy

ste

m G

en

(M

W)

95% of Peak = 22809 MW : 87 Hours per year

90% of Peak = 21609 MW : 650 Hours per year

5% OF PEAK DEMAND < 100 HOURS

Energy Storage System (ESS)

PEA Thailand 4

STAGE 1: Pilot

PEA Microgrid

Khun PaeChang Mai

R&D

BetongYala

Mae Sariange

Mae Hongson

PEA Thailand 5

Khun Pae

Khun Pae Microgrid (R&D Project) Chom Tong, Chiang Mai

90kW in 2019

PEA Thailand 6

Microgrid Controller

BESS 100kW/100kWh Mobile App

Khun Pae Microgrid (R&D Project) Chom Tong, Chiang Mai

Remote Control Switch

PEA Thailand 7

AC/DC AC/DC

BESSPVHydro

ชุมชนอนามัย

โรงเรียน ชุมชน

ชุมชน

400V

22kV

S1

S2 S3

S4

ชุมชน

Grid ConnectedMicrogrid at

Khun Pae

(R&D)

PEA Thailand 8

AC/DC AC/DC

BESSPVHydro

ชุมชนอนามัย

โรงเรียน ชุมชน

ชุมชน

400V

22kV

S1

S2 S3

S4

ชุมชน

IslandingMicrogrid at

Khun Pae

(R&D)

PEA Thailand 9

Khun Pae Microgrid (R&D Project) Chom Tong, Chiang Mai

PEA Thailand 10

Khun Pae Microgrid (R&D Project) Chom Tong, Chiang Mai

PEA Thailand 11

Khun Pae Microgrid (R&D Project) Chom Tong, Chiang Mai

PEA Thailand 12

Khun Pae Microgrid (R&D Project) Chom Tong, Chiang Mai

BESS supply power during islanding condition (24 Apr 2018).

PEA Thailand 13

Energy Storage (3MW/1.5MWh)to cover significant load

1 Units

Micro grid Controllerwith Building Energy Management System (BEMS) and Fault Location Isolation & Service Restoration (FLISR)

1 System

Communication System 1 System

Interface System 1 System

Mae Sariang

Microgrid at Mae Sariang

PEA Thailand 14

1. Islanding 2. Intermittent Resources Integration

3. Peak Shaving

Others e.g.-Generation PV forecast- Load forecast

Microgrid at Mae Sariang: Modes of Functions

PEA Thailand 15

with Fault Location Isolation & Service Restoration (FLISR)

Microgrid at Mae Sariang

PEA Thailand 16

with Fault Location Isolation & Service Restoration (FLISR)

Microgrid at Mae Sariang

PEA Thailand 17

with Fault Location Isolation & Service Restoration (FLISR)

Microgrid at Mae Sariang

PEA Thailand 18

with Fault Location Isolation & Service Restoration (FLISR)

Microgrid at Mae Sariang

PEA Thailand 19

with Fault Location Isolation & Service Restoration (FLISR)

Microgrid at Mae Sariang

PEA Thailand 20

BetongEnergy Storage (4MW/4MWh)to cover significant load 1 Units

Micro grid Controllerwith Fault Location Isolation & Service Restoration (FLISR)

1 System

Communication System 1 System

Interface System 1 System

Scope of Work

ExistingDiesel Gen. (1MW) 7 Units

Microgrid at Betong, Yala Province

PEA Thailand 21

Microgrid at Betong, Yala Province

PEA Thailand 22

THANK YOU FOR YOUR ATTENTION