march 2017 power quality seminar - · pdf filehv capacitor unit march 7, 2017 slide 5 ......
TRANSCRIPT
POWER QUALITY SEMINAR OF IRAN, 2ND MARCH 2017
Power Quality Seminar
Abel-Zhang,Power Quality Center Manager
Capacitor Unit
Capacitor Shunt Bank
Type Solution of Filter
March 7, 2017 Slide 2
Contents
Capacitor Unit
Capacitor Shunt Bank
Type Solution of Filter
March 7, 2017 Slide 3
Contents
Application in Power Grid
HV Capacitor Unit
March 7, 2017 Slide 4
Product Portfolio
HV Capacitor Unit
March 7, 2017 Slide 5
Single-Phase Capacitor
• Oil immersed CapacitorUnit-AC
• Single-Phase capacitor Unit
3 types of fuse configurationprotection: Internal fuse,External fuse and Fuseless
Special Capacitor
• Three-phases Capacitor
Apply in industry project,improve power factor
• Surge Capacitor
Apply in industry project,improve power factor
• Oil immersedCapacitor Unit-DC
Apply for DC Project
Production SpecificationHV Capacitor Unit
March 7, 2017 Slide 6
Internally Fused• Voltage Range: 1 - 14.4 kV• Power Range: 100 - 1200kvar (50 or 60 Hz)
Externally Fused• Voltage Range: 2.4 - 25 kV• Power Range: 100 - 500 kvar (50 or 60 Hz)
Fuseless Units (ABB Design)• Voltage Range: 12 - 25 kV• Power Range: 300 - 1000 kvar (50 or 60 Hz)
Fuseless banks (Conventional Design)• Voltage range: Min. 46 kV• Power range: Min. 3 Mvar (50 Hz)
Standard:• IEC60871-1(2005)• GB/T11024.1-2001• DL• IEEE• Other standard req. by
customers
Oil Type 3-PH Unit
HV Capacitor Unit
March 7, 2017 Slide 7
• Voltage range: 2.4 - 20 kV
• Maximum power: 500kvar (50or 60 Hz)
• Maximum current: 180A
• Internally connection: ∆ or Y
• Apply for electric motor orindustrial load, improvepower factor
Oil Type Surge Unit
HV Capacitor Unit
March 7, 2017 Slide 8
Single-phase (Europe, IEC)• Voltage range: 1 - 36kV• Capacitance/electrode: 0.13 - 0.65uF• Standard: IEC
Single-phase or Three-phase( US, ANSI/IEEE)• Voltage range : 1 - 24kV• Capacitance/electrode : 0.13 - 0.75uF• Standard : IEEE
Raw materialHV Capacitor Unit
March 7, 2017 Slide 9
Material Name Main Character
Aluminum Foil Symmetric thickness and good electrical property advantages. Thethinnestthickness could be reached to4.5um
Polypropylene
Film
Coarsening surface, stable property, high withstand capability, 9um films and aboveare widely adopted.
Faradol
impregnation fluidImproving insulation strength and biodegradable advantages, non-PCB fluid.
Bushing The connection flange is colded pressed on the bushing which not only guaranteesthe insulation strength but also the mechanical strength and isolation.
Internal fuse Adopt special material, good quality, stability and high reliability.
Discharge
ResistorGood at thermal stability and ability of overload;
Tank High strength and corrosionproof.
Technology of FuseHV Capacitor Unit
March 7, 2017 Slide 10
InternallyFused
ExternallyFused
ABB Design Conventional Design
FuselessFuse DischargeResistor
Choose suitable fuse technologyHV Capacitor Unit
March 7, 2017 Slide 11
How to choose fuse configuration depends on voltage and capacity
Internal fuse VS External fuseHV Capacitor Unit
March 7, 2017 Slide 12
Internal fused Capacitor• Only one element damaged• Less loss of capacitance• limit current increasing• suitable for big capacity capacitor unit• no-direct observe for fuse
disconnection• Limited by range of voltage VS.
capacity
External fused capacitor• observe fuse disconnection directly• fuse from outside• cause short-circuit of parallel group• more loss of capacitance• can not limit current• capacitor volume limited• may not disconnect if high energy in
parallel
Design Comparison
Capacitor Shunt Bank
March 7, 2017 Slide 13
Design Comparison
Capacitor Shunt Bank
March 7, 2017 Slide 14
TBB 22-8400/200BLW 1S14P TBB 22-8400/700BLW 2S2P
Definition of capacitor unitHV Capacitor Unit
March 7, 2017 Slide 15
Capacitor bank Capacitor unit Capcitor element
Capacitor Unit Construction
HV Capacitor Unit
March 7, 2017 Slide 16
Bushing
Element
Discharge Resistor
Internal fuse
earth insulation
Nameplate
Connection terminal
Design principle
HV Capacitor Unit
March 7, 2017 Slide 17
§h
§w §d
§U+
§U-
wdA x=Available area of electrode (mm2)
hAεC =
Capacitance (mF)
ωC UQ 2=Reactive power (kvar)
System Specification
Operation condition
Design principle
HV Capacitor Unit
March 7, 2017 Slide 18
Consideration of safety plenty level§ Film layer (3-layers is normal)
§ Strong puncture- against ability
§ Foil auto-folding of electrode§ Regular edge stress;
§ Excellent partial discharge ability
§a = folded radius
§D
§ Film
§Foil §Foil bulge edge§Folded
§a
§D =thickness of film
Process ControlHV Capacitor Unit
March 7, 2017 Slide 19
High quality raw materials, with optimized design scheme toguarantee the product life and reliability;
Barcode System records full production process as to ensureconsistent quality;
Production processHV Capacitor Unit
March 7, 2017 Slide 20
ElementInternalFuse Stacking
Canning
ImpregnationPainting
Al foil
Al foil
Dielectricmaterial
HV test
Module Assembly & PackingHV Capacitor Unit
March 7, 2017 Slide 21
Finish goods check for capacitor unit;Connection assembly;Rack assembly;Unit packing and module packing;
Modularized packages of product,conveniences for installation and shortenworking time and cost at site
Characters of Capacitor unitHV Capacitor Unit
March 7, 2017 Slide 22
• Advanced internally fused technology• Lower loss• High reliability• Narrow capacitance deviation range• Better weight/per kvar ratio;• Good sealing;• Compared with others better ability at over voltage and over current;• Inside discharge resistor• Wide temperature range• Suitable for varies of climate condition and frequent operations• Tank painting gives a good reflection of ultraviolet, aging slowly, high anti-corrosion;• Strict selection and control of auxiliary material to guarantee the quality stability of
capacitor;• Two-dimension ID nameplate, long term quality tracing and easy for follow-up
purchasing
Characters of Capacitor unitHV Capacitor Unit
March 7, 2017 Slide 23
IEC60871-1 standard requirement
Requirement from China utility power company standard
ABB capacitor unit: 0.02% or 0.015% 40W/200 kvar or 30W/200kvar
Local company: 0.1% 200W/200kvar
Characters of Capacitor unitHV Capacitor Unit
March 7, 2017 Slide 24
Capacitor Unit
Capacitor Shunt Bank
Type Solution of Filter
March 7, 2017 Slide 25
Contents
Function & Parameter range
Capacitor Shunt Bank
March 7, 2017 Slide 26
Installed in Transmission anddistribution network
• Increase transmission capability• Improve power factor• Lower line losses• Enhance power quality
Voltage scope: 1 - 1000 kVCapacity range: 0.6 - 300 Mvar
Explanation of Type
Capacitor Shunt Bank
March 7, 2017 Slide 27
T BB A 35 - 60000/500 A QW
Wfo
ro
utdo
or
Qfo
rb
ridg
ed
ifferentcurrent
Afo
rsing
lestar
Unit
ratedcap
acity(kvar)
Bank
ratedcap
acity(kvar)
Bank
ratedvo
ltage(kV
)
Afo
rQ
Bank-A
BB
for
shuntb
ank
Tfo
rb
ank
Structure
Capacitor Shunt Bank
March 7, 2017 Slide 28
Reactor
Capacitor
Discharge coil
Lightning arrester
CurrentTransform
erSupporting
insulator
Connectingline
Hot-galvanizedsteel rack
Structure
Capacitor Shunt Bank
March 7, 2017 Slide 29
QBANK-A QBANK-B QBANK-C
Structure
Capacitor Shunt Bank
March 7, 2017 Slide 30
QPLUS-A-Example QPLUS-B-Example QPLUS-C-Example
Features
Capacitor Shunt Bank
March 7, 2017 Slide 31
May choose stainless, Hot dipped galvanized rack;
Low failure rate, annual failure rate is lower than0.1% by statistic.
Easy to install. Capacitor unit & rack has beeninstalled together in the factory.
May choose ABB’s disconnection switch;
Specific connecting structure between BV cable andbushing;
High level of standardized installation.
Simple structure, easy to maintain
Anti-seismic simulation
Capacitor Shunt Bank
March 7, 2017 Slide 32
HVDC AC Tuning Filter
Capacitor Shunt Bank
March 7, 2017 Slide 33
• Capacitors• Rack• Post Insulator• Connection Cable• Armour Clamp• Current
Transformer
HVDC DC Tuning Filter
Capacitor Shunt Bank
March 7, 2017 Slide 34
• Capacitors• Rack• Post Insulator• Connection Cable• Armour Clamp
Test Capacitor Bank
Capacitor Shunt Bank
March 7, 2017 Slide 35
Accessary
Capacitor Shunt Bank
March 7, 2017 Slide 36
Series Compensation Installation for Distribution Grid/Railway
Capacitor Bank
March 7, 2017 Slide 37
What is Power Quality
Capacitor Unit
Capacitor Shunt Bank
Type Solution of Filter
March 7, 2017 Slide 38
Contents
Filtering concept
Type Solution of Filter
March 7, 2017 Slide 39
Clean Power Grid
Non Linear LoadFactory
Purification FilterDirty Current
Clean water Clean Current
Dirty water
Dirty Current
Project Process
Type Solution of Filter
March 7, 2017 Slide 40
Test Report Ready
Power Quality Inquiry Harmonic Measurement
Test Report
Schematic Design
Filter Design
Approve
Installation
Filtering effect checking
Produce Delivery
Harmonics representation
Type Solution of Filter
March 7, 2017 Slide 41
0%
5%
10%
15%
20%
25%
5 7 11 13 17 19 23 25
Time domainFrequency domain
Power Quality Measurement
Type Solution of Filter
March 7, 2017 Slide 42
Power Quality Measurement
Type Solution of Filter
March 7, 2017 Slide 43
Site monitorConnection Diagram
Harmonic Analysis
Type Solution of Filter
March 7, 2017 Slide 44
dIIp6
1 =Fundermental current
Harmonic current ah IIII 2965.021
2 =-=
6 pulse rectifier THD I will be 29.65%!
]13sin13111sin
1117sin
715sin
51[sin32
a L-++--= tttttIi wwwwwp d
+ =+
50Hz Distortion curve7 harmonic(350Hz)5 harmonic (250Hz)
Harmonic Analysis
Type Solution of Filter
March 7, 2017 Slide 45
Type of Filters
Type Solution of Filter
March 7, 2017 Slide 46
Type of Filters
Type Solution of Filter
March 7, 2017 Slide 47
Type of Filters
Type Solution of Filter
March 7, 2017 Slide 48
Z
f
RL
C
L
I1
IRMS
InRC2
LL
C1
Harmonic Analysis
Type Solution of Filter
March 7, 2017 Slide 49
Matlab Simulink ATP PSCAD
Harmonic Analysis
Type Solution of Filter
March 7, 2017 Slide 50
12 12.928 13.857 14.785 15.713 16.642 17.57 18.498 19.426 20.355 21.2830
0.018
Fault level current (kA)x
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 240
2
4
6
8Impedance- Frequency characteristic
Harmonic order
Impe
danc
e(oh
m)
7.688
3.312 10 3-´
Z_total1 x( )
250 x
Real Cases of Filter solution
Type Solution of Filter
March 7, 2017 Slide 51
Customer GuiyangAluminum
System 220kVnetwork
Operating date 2005-2011
Power System
§ Sd(min)12660.25MVAR
§ DC load:
Active 272MW
Reactive 89Mvar
§ AC load
Active 23MW
Reactive 12Mvar
§ 5 Rectifiers,12 pulse perrectifier,totally 60pulses
§ Power factor 0.87, target:0.92~0.984( 5 rectifiers) 0.91~0.96(4 rectifiers).
Real Cases of Filter solution
Type Solution of Filter
March 7, 2017 Slide 52
Branch 5th 7th 11th
Model TALA22-5400/450BLW TALA22-3600/300BLW TALA22-5400/450BLW
Capacitykvar 5400 3600 5400
CapacitanceμF 20.7 13.8 20.7
Capacity/unitkvar
450 300 450
Rated voltagekV 8.32
Series & parallel 2 S 2 P
Protect Type Double-star unbalance current protection
InductancemH
19.68 15.14 4.21
Real Cases of Filter solution
Type Solution of Filter
March 7, 2017 Slide 53
Benefit to CustomerPower factor increases from 0.87to above 0.93(meet powerdepartment requirement)
Reduce harmonic; decrease theelectrolytic aluminum time,electrolyzer overhaul cyclelengthened. Electrolytic aluminumproductivity increased.
© ABB GroupMarch 7, 2017 | Slide 53
Running in later stage§ As for electrolytic aluminum
electrolytic copper factory, adoptstrong direct current electrolysis.So, the magnetic inductance ofelectro magnetic to nearby metalobjects have to be taken intoconsideration. Magnetic metal asracks, accessories are notallowed.
3 5 7 11 13 17 19 23 25
滤波前谐波电流 0 27.6 12.1 85.5 55.9 4.8 3.2 30.4 23.8
滤波后谐波电流 0 1.6 0.6 2.3 8 1.1 0.8 8.3 6.7
0
10
20
30
40
50
60
70
80
90
A
h
滤波前后谐波电流对比
Real Cases of Filter solution
Type Solution of Filter
March 7, 2017 Slide 54
Harmonics current comparison before and afterfilter
Before
After
Real Cases of Filter solution
Type Solution of Filter
March 7, 2017 Slide 55
Real Cases of Filter solution
Type Solution of Filter
March 7, 2017 Slide 56
Real Cases of Filter solution
Type Solution of Filter
March 7, 2017 Slide 57
Real Cases of Filter solution
Type Solution of Filter
March 7, 2017 Slide 58
MY Samalaju 275kV Filter
Reactor ResistorArrestor
Capacitor Bank
CurrentTransformer
EarthingSwitch
Real Cases of Filter solution
Type Solution of Filter
March 7, 2017 Slide 59
Real Cases of Filter solution
Type Solution of Filter
March 7, 2017 Slide 60
1.1. For capacitor bank analysis1.1.1. Parameters design of the components:· Capacitor bank· Reactor· Arrester· Magnetic Voltage Transformer· Current transformer· Earthing switch1.1.2. Characteristic curve of MFC Frequency – Impedance1.1.3. Modeling the capacitor bank by PSCAD1.1.4. Inrush current analysis1.1.5. Transient voltage analysis1.1.6. Insulation coordination calculation
1.2. For power system1.2.1. Power factor & Voltage rise analysis1.2.2. Resonance analysis· Harmonic resonance frequency calculation· Frequency scan by PSCAD model with 4*100Mvar bankoperating1.2.3. Harmonic analysis
Real Cases of Filter solution
Type Solution of Filter
March 7, 2017 Slide 61
Real Cases of Filter solution
Type Solution of Filter
March 7, 2017 Slide 62
Real Cases of Filter solution
Type Solution of Filter
March 7, 2017 Slide 63
Quantity 2setsRated voltage(kV) 35Rated capacity(Mvar)
H2 Filter 54.1H3 Filter 28.8H4 Filter 13.4
Real Cases of Filter solution
Type Solution of Filter
March 7, 2017 Slide 64
Big Noise With 7th filter Operating
ABB Engineer check and exclude theproduct quality reason
ABB PQC engineer do the PQ test
ABB PQC provide simulation & Solution
Installed the protection equipment,Noise disappear
ABB PQC provide the PQ test andsimulation again and operatingsuggestionCustomer follow ABB’s suggestion,Succeed.
2015.09
2015.09
2015.10
2015.11
2015.12
2015.12
2016.01
Real Cases of Filter solution
Type Solution of Filter
March 7, 2017 Slide 65
n Variant kinds of load,DC/AC Drive, DC/ACarc furnace
n Issues with harmonic,low PF, and load-balancing
n Mixed solution withDynacomp, MV filter,and MV SVG
n Aiming to have astandard sizing tool forfuture use