Upload
mrhom
View
218
Download
0
Embed Size (px)
Citation preview
7/30/2019 nedo 11 dec
1/22
NEDO-MEA Meeting
11 December 2012
7/30/2019 nedo 11 dec
2/22
MEA Background
Bangkok, Nonthaburi and Samutprakan
Service area : 3,192 km2
Maximum Demand: 8,383 MW
Substation no.: 149
Number of customer : 3,115,695
April , 2012Load
Time
2
7/30/2019 nedo 11 dec
3/22
Distribution facilities
Transformers Terminal station 230/69-115 kV ( 17 stations) 18,205.88 MVA
Substation 69-115/12-24 kV ( 149 stations ) 18,405.00 MVA
Distribution 12-24 kV/230-380 V 14,148.68 MVA
TRANSMISSION LINES 230 kV ( 6 LINES ) 49.54 cct-km
115 kV ( 38 LINES ) 722.75 cct-km
69 kV ( 77 LINES ) 897.88 cct-km
DISTRIBUTION LINES
24 kV ( 1,156 LINES ) 12,829.52 cct-km
12 kV ( 464 LINES ) 4,279.18 cct-km
Low voltage 27,211.83 cct-km
OPTICAL FIBER
ADSS Structure Cable 10,000.00 cct-km
7/30/2019 nedo 11 dec
4/22
Operation and maintenance
No subsidiary company
24 kV line maintenance by district office
69 and 115 kV maintenance by Maintenancedepartment
Substation equipment maintenance by
Maintenance department
7/30/2019 nedo 11 dec
5/22
MEA Quality of Electricity Supply for 69, 115
and 230 kV System
Frequency 50 0.5 Hz (normal operation) Data from EGAT
Voltage supply 230 kV
115 kV
69 kV
218.0 - 237.0 kV (normal)
218.0 - 242.0 kV (emergency)
106.4 - 117.6 kV (normal)
96.0 - 123.0 kV (emergency)63.6 - 70.4 kV (normal)
57.3 - 72.5 kV (emergency)
Harmonic voltage THDv less than 3.0 % Refer to planning level in
Engineering
Recommendation G5/4
table 4 and 5 which also
include individual
harmonic
Voltage flicker Pst less than 0.8
Plt less than 0.6
Refer to planning level in
IEC 61000-3-7
Voltage unbalance Less than 1.4 % Refer to planning level in
IEC 61000-3-13
Temp. power frequency
overvoltage
Less than 173.2 % of nominal voltage Refer to EN 50160
7/30/2019 nedo 11 dec
6/22
MEA Connection Regulation for 69, 115 and
230 kV System
Load size 230 kV not available
115 kV larger than 15 MVA
69 kV larger than 15 MVA
Depend on specific area
Maximum step voltage
change
Max. step voltage change at PCC due to
customer load variation must less than 3.0
% of nominal voltage
Power factor Between 0.9 - 1.0 lagging
Harmonic current Limit individual harmonic current up to order
50th. The limits depend on load size, system
capacity and fault level at PCC.
Refer to planning level
from Engineering
Recommendation G5/4
and assessment method
from IEC 61000-3-6
Voltage
Flicker
Limit Pst and Plt created by customer at
PCC. The limits depend on load size and
system capacity
Refer to assessment
method from IEC 61000-
3-7
Unbalanced current Limit negative sequence current. The limit
depends on load size, system capacity and
fault level at PCC.
Refer to assessment
method from IEC 61000-
3-13
7/30/2019 nedo 11 dec
7/22
MEA Quality of Electricity Supply for 12 and 24
kV System
Frequency 50 0.5 Hz (normal operation) Data from EGAT
Voltage supply 12 kV
24 kV
10.9 - 11.8 kV (normal)
10.8 - 12.0 kV (emergency) 21.8 -
23.6 kV (normal)
21.6 - 24.0 kV (emergency)
Harmonic voltage THDv less than 4.0 % Refer to planning level in
Engineering
Recommendation G5/4
table 3 which also include
individual harmonic
Voltage flicker Pst less than 0.9Plt less than 0.7
Refer to planning level inIEC 61000-3-7
Voltage unbalance Less than 1.8 % Refer to planning level in
IEC 61000-3-13
Temp. power frequency
overvoltage
Less than 173.2 % of nominal voltage Refer to EN 50160
7/30/2019 nedo 11 dec
8/22
MEA Connection Regulation for 12 and 24
kV System
Load size larger than 300 kVA but less than 15 MVA Depend on specific area
Maximum step voltage
change
Max. step voltage change at PCC due to
customer load variation must less than 3.0
% of nominal voltage
Power factor Between 0.9 - 1.0 lagging
Harmonic current Limit individual harmonic current up to order
50th. The limits depend on load size, system
capacity and fault level at PCC.
Refer to planning level
from Engineering
Recommendation G5/4
and assessment method
from IEC 61000-3-6
VoltageFlicker
Limit Pst and Plt created by customer atPCC. The limits depend on load size and
system capacity
Refer to assessmentmethod from IEC 61000-
3-7
Unbalanced current Limit negative sequence current. The limit
depends on load size, system capacity and
fault level at PCC.
Refer to assessment
method from IEC 61000-
3-13
7/30/2019 nedo 11 dec
9/22
Adder
7/30/2019 nedo 11 dec
10/22
Energy Regulatory Commission
policy framework as to ensure the equality andfairness nested between consumers, producers,and other relevant interest groups.
The primary functions and duties to oversee the regulations that deal with electricity
systems of generation, transmission, distribution, andtheir system operator.
monitoring energy market conditions by tariff review,
licensing, approval of power purchase, disputesettlement and fulfilling its mandate, in order tocounterbalance each other, to ensure maximuminterests of the people and the country
7/30/2019 nedo 11 dec
11/22
Tariff
http://localhost/var/www/apps/conversion/tmp/scratch_4/tariff.docxhttp://localhost/var/www/apps/conversion/tmp/scratch_4/tariff.docx7/30/2019 nedo 11 dec
12/22
Challenge1. Power System
Power Quality, Reliability, Security
Loss Reduction, Economic
2. Service
Energy usage efficiency New Service
3. Renewable Energy
Manage and Support
New Technology (EV, Energy Storage)
4. IT Interoperability and Standard
12
7/30/2019 nedo 11 dec
13/22
13
Smart Grid Roadmap
Stage 12012 2016
Laying the Foundations
Stage 22017 2021
Large Scale Implementation
Power system
40 automation substations Automation substation in all service area(170 stations)
Manage and Control LBS in distributionnetwork cover 30% of service area. Manage and Control LBS in distributionnetwork cover all of service areaOutage area monitoring and managementsystem for HV and MV network Outage monitoring and managementsystem all networkAutomatic service restoration (Self-
healing) in some area. Automatic service restoration (Self-healing) in all areaAsset management
7/30/2019 nedo 11 dec
14/22
14
Stage 1
2012 2016
Laying the Foundations
Stage 2
2017 2021
Large Scale Implementation
ServiceAutomatic meter reading (AMR) for commercial and industrial customerDaily load profile and power consumption monitoring for customer via internet andmobile phoneStreet light control
Smart Grid Roadmap
7/30/2019 nedo 11 dec
15/22
15
Stage 1
2012 2016Laying the Foundations
Stage 2
2017 2021Large Scale Implementation
Energy
conservation
&
Alternativeenergy
Support integration of SPP/VSPP and
renewable energy
Monitoring and control SPP/VSPP and
renewable energy in widely areaPilot project of 20 EV and 10 charging
stations to study the effect to power
system
Support widely used of EV and charging
station and electric vehicle to grid (V2G)
Pilot project of energy storage Energy Storage for powersecurity
Building Energy Management System(BEMS) Integration of BEMS and home energymanagement system
Smart Grid Roadmap
7/30/2019 nedo 11 dec
16/22
MEAs Smart Grid Projects
objectiveProject
EMS DMS SA BEMS EV ESS AMR
Substation Automation
According toIEC 61850p
Remote control of distribution
switch with Distribution
Management System
pOutage monitor in high
voltage and medium voltage
system
p p p pself-healing in some area p p pAMR for Commercial and
industrial customerp
Ready for SPP/VSPP and
Renewable Energy connectionp p p p
Pilot use of EV and charging
stationp
Pilot use of Energy Storage pBuilding Energy ManagementSystem p
7/30/2019 nedo 11 dec
17/22
MEAs Smart Grid Implementation Plan
and BudgetBudget (MBaht)
Project 2555 2556 2557 2558 2559 Total
EMS - 40.0 311.1 - - 351.1
DMS 360.3 561.8 475.84 121.80 121.80 1,641.54
SA 150.0 165.0 180.0 200.0 220.0 915.0
BEMS - 34.0 36.0 17.0 20.0 107.0
EV 20.5 20.5 15.25 15.25 - 71.5
ESS - 0.5 - 20 - 20.5
AMR 328.172 - 360.85 - - 689.022Total 858.97 822 1379 374.1 362 3,795.66
7/30/2019 nedo 11 dec
18/22
Pilot AMI
http://localhost/var/www/apps/conversion/tmp/scratch_4/AMI%20for%20Smart%20Substation.pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_4/AMI%20for%20Smart%20Substation.pdf7/30/2019 nedo 11 dec
19/22
VSPP
VSPP or Very Small Power Producer is a powergenerator of a private sector , state agency , stateowned enterprise or individual who generate and
sell electrical power less than 10 MW to MEA orPEA. Fuels which are used in a power generationprocess are solar energy , biogas and biomassenergy , hydropower , natural gas and etc. The
objectives for purchasing electrical power fromVSPP are to support an efficient use of resourcesand reduce pollution effect to the environment
7/30/2019 nedo 11 dec
20/22
Number of VSPP
7/30/2019 nedo 11 dec
21/22
Condition or regulations to be
authorized as VSPP
Power Generation Using Renewable Energy (
attached 1 )
Power Generation Using Cogeneration Energy
( attached 2 )
http://localhost/var/www/apps/conversion/tmp/scratch_4/Regulation%20-Renewable%20(attached%201).pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_4/Regulation%20-Cogeneration%20(attached%202).pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_4/Regulation%20-Cogeneration%20(attached%202).pdfhttp://localhost/var/www/apps/conversion/tmp/scratch_4/Regulation%20-Renewable%20(attached%201).pdf7/30/2019 nedo 11 dec
22/22
The procedure to be authorized as VSPP
1. Procedures and criteria for consideration of
power purchase from VSPPs.
2. Conditions for purchasing electrical powerfrom VSPPs.
3. Power purchasing point and connection point.
4. Costs incurred for VSPPs.