Opening the future of smart energy . . . . .

FACTSFlexible AC Transmission System

FACTS are consisted of power electronics and other static components to increase controllability and power transfer capability of AC network. Representative systems are SVC and STATCOM.• Provide dynamic reactive power support and voltage control.• Suppression flicker by fluctuating load• Mitigate potential sub-synchronous resonance problems.• Improve system stability.

FACTS

SVC system are consisted of thyristor-controlled reactor (TCR) and the

thyristor switched capacitor (TSC) as well as harmonic filters.

SVC is the most widely employed FACTS device around the world.

SVC

Flexible AC Transmission System

Static Var Compensator

Like an SVC, the STATCOM(Static Synchronous Compensator) enhances the

stability of grid voltage by introducing the voltage sourced MMC(Modular

Multilevel Converter) technology. LSIS’ most advanced “SVC Compact”

provides high-performance in remarkably compact footprint.

PowerUtility companyIPP(Independent Power Plant)Wind and solar farm

Voltage controlStability improvePower factor improveReactive power controlPower loss reduce

SteelSteel companySmelting companySpecial steel company

Flicker, THD reducePower factor improveProductivity improveVoltage controlReactive power controlPower loss reduce

Mine, Gas & OilMining companyGas plantOil plant

Productivity improvePower factor improveFlicker, THD reduceVoltage controlReactive power control

STATCOMStatic Var Compensator Compact

FUTURING SMART ENERGY

FACTS applications and benefit

FACTS [Flexible AC Transmission System] 2 . 3

Electrical grid managementThe FACTS system can improve performance of transmission and disribution grid.Installing the FACTS suitable points in the grid can increase transfer capability andreduce losses while maintaining a voltage profile under different network conditions.The dynamic stability of the grid can also be improved, and active power oscillations mitigated.

Power

Time

Without FACTS

With FACTS

VoltageFault

Time(seconds)���

���

���

��!

� �� ��� ��� ���

Without FACTS

With FACTS

Power quality stabilizationIn industrial applications, the electronic rectifiers applied to the electrolysis power supply andmill machine requires large amount of reactive power.The use of arc furnace usually comes with voltage fluctuation and flicker and large harmonics.Large amount of reactive power demand and reactive power variation result in the voltagefluctuation and flicker, which also reduces the operation efficiency.The FACTS system can supply sufficient reactive power as well as eliminate the harmonicsgenerated by rectifiers and prevent the equipment from the voltage fluctuation.

Voltage

Time

Without FACTS

With FACTS

Arc-

furn

ace

P (p

,u)

Without FACTS

With FACTS

Arc-furnace A (p,u)

���

�

���

����

� ���

Harmonic filtersReactorsSVC valveCapacitor banksSVC control & protection system

SVC main components• SVC transformers• Circuit breaker• Thyristor valve

- Thyristor Controlled Reactors (TCR)- Thyristor Switched Capacitors (TSC)

• Cooling system• Harmonic filters• Control & protection

1 2

3 4 5

FUTURING SMART ENERGY

Control & protection

TCR TSC Harmonic filters

SVC control & protection systemStandard equipment for closed-loop and open loop control, commercially available and in use for multiple applications.Programming and customization of control functions are simplified by the use of a graphical programming interface.(LSIS' OPAS : Open Process Automation System)

• Multiple control modes can meet the requirements of different industry fields- Voltage control - Flicker compensation - Manual susceptance regulation- Unbalance contol - Reactive power control- Power factor control - Negative sequence control

• High accurate control angle(0.01°), large control range(95°-175°)• Full redundancy system(optional)• User optimized HMI(Human Man Interface)• Reliable protection scheme• Fast response time

SVC HMI (OWS)

SVC C&P panelSVC C&P System Configuration

C&P : Control and Protection EWS : Engineering Workstation DPC : Data Processing Center OWS : Operating Workstation

DPC AEWS/OWS

DI/DO/Field IO

DS PSCBTCR TSC

FieldPT

CT

PT

CT CB

TCRVBE

TSCVBE

DI/DO/Field IO

TCRFP

TCRFP

TSCFP

TSCFP

DPC BEWS/OWS

TFR

C&P A

AI/GPIO AI/GPIO

C&P B

GPS SCADA

C&P

StatusV&IV&I

Status

SCADA LAN

SVC Eng. tool (EWS)

Operation Panel VBE PanelC&P Panel(A/B)Field I/O Panel

Smart SVC Center in ulsan, Korea

Configuration of C&P system

FACTS [Flexible AC Transmission System] 4 . 5

Control and protection• Fully redundant system• Easy parallel operation• Remote control and monitoring• Self-diagnosis

AC yard(Reactor)• Harmonic filter(optional)• Small footprint reactor• Simple connection

Submodule and valve tower• Modular design• High speed bypass switch(Operating time 2ms)• Long life time• Easy maintenance

Valve cooling system• Easy user interface and maintenance• Low acoustic noise• Flexible layout of heat exchangers

(Roof or Ground)

FUTURING SMART ENERGY

Control & protection

STATCOM main components• STATCOM transformers• Circuit breaker• MMC valve• Cooling system• Control & protection

12m13.8m

20.25m

11.2

m

13.2

m

• Container type 50Mvar STATCOM • Container type 100Mvar STATCOM

FACTS [Flexible AC Transmission System] 6 . 7

STATCOM control & protection systemSTATCOM submodule and valve towerArm reactorsSTATCOM valve cooling system

1

3

4

2

TechnologyDue to the MMC(Modular Multilevel Converter) technology, the degree of harmonic generation emission is quite small.

Specifications & VI charicteristicTypical specifications of LSIS can be changedby requirements of customer, also can beoptimized according to condition.The STATCOM can be installed in a containeror building types, depending on the systemvoltage and capacity

FUTURING SMART ENERGY

Inductive operation Vcon V

Vcon V

V

V jXI

Vcon jXI

Vcon

Vcon = V

V

Vcon

V

Vcon

V

Vcon

VVcon

Capacitive operation

V

VCON

VCON V

I

I

I=0

I

I

No load operation

Busbar

20Mvar ~ 200Mvar

Up to 12kVL-Lrms (Without Transformer)

Above 13kVL-Lrms (With Transformer)

-connection

Less than 1.5%

Less than 16ms

Deionized water

Voltage regulationReactive power control

Voltage unbalance controlPower factor control

Flicker control

OV, UV, OC, SC, etc.

20 years

Container(45ft) / Building

Rated power

Rated voltage

Connection type

System loss

Response time

Cooling system

Control mode

Protection mode

Life time

Installation type

1.31.2

1.0

0.8

0.5

1.0 0.5 Iprim(p.u) 0.5 1.0

VI charicteristic & conrol performanceSystem voltage suppot and stabilization by smooth but fast( 16ms) control over a wide range of operating conditions.Contorl system maintain submodule capacitor voltage ripple lower than 10%.A dynamic response is follow the system contingencies.

FACTS [Flexible AC Transmission System] 8 . 9

STATCOM V-I characteristic

Capacitive Inductive

V prim(p.u)

Detailed waveform

System voltage [kV] Submodule capacitor voltage [kV]System, Arm, Cluster current [kA]

1. DC Dielectric Test2. Impulse test3. C&P test4. Synthetic test5. AC dielectric test

FUTURING SMART ENERGY

LSIS’ busan HVDC plant, established in 2011, is the first and only facility in Korea.HVDC & FACTS valve development, production and various DC tests includingC&P(Control & Protection) are available.

Busan HVDC/FACTS plant

1 2 3

5

4

1. Valve dielectric test2. Valve synthetic test

1 2

ProposalOptimum installation locationSystem capacityFeasibility study Detailed design

Configuration of control & protection designControl functionsSystem components detail design

System designHVDC/FACTS configurationHarmonics distortion limitEquipment ratingLoss and cost evaluation

ManufacturingValveTransformerControl & protection

Construction &commissioning

Maintenance

Condition analysis

FACTS [Flexible AC Transmission System] 10 . 11

Total solution provider

LSIS provides total HVDC & FACTS solution from systemdesign, equipment design, manufacture & tests,commissioning, and maintenance. Proposal is optimizedby customer’s needs, use condition and location.

General process

Seoul

Anyang

Dokdo

Ulleungdo

Cheongju

Busan

Ulsan

Jeju

Cheonan

Smart SVC center, Ulsan

Power TR plant, Busan

HVDC/FACTS plant, BusanHVDC smart center, Jeju

LS tower, Anyang

R&D campus, Anyang

Head OfficeLS Tower, LS-ro 127, Dongan-gu, Anyang-si, Gyeonggi-do, 14119, KoreaTel. 82-2-2034-4784, 4890, 4849 Fax. 82-2-2034-4755

R&D campusLSIS R&D Campus, LS-ro 116beongil 40, Dongan-gu, Anyang-si Gyeonggi-do 14118, KoreaTel. 82-31-8090-7787 Fax. 82-31-8090-7250

Busan HVDC/FACTS plantHwajeon-sandan2ro 9,Gangseo-gu, Busan, 46739, KoreaTel. 82-51-711-8040 Fax. 82-51-711-8089

Busan plant1-19 Block Hwajeon-dong, Gangseo-gu, Busan, 46735, KoreaTel. 82-51-795-6114 Fax. 82-51-795-6169

Cheong-ju plant1 Songjeong-dong, Cheongju-si, Chungbuk-do, 28439, KoreaTel. 82-43-261-6114 Fax. 82-43-261-6602

Overseas subsidiaries• LSIS Shanghai Office (China) Tel: 86-21-5237-9977 Fax: 86-21-5237-7189 E-Mail: ygeo@lsis.com

• LSIS Beijing Office (China) Tel: 86-10-5761-3127 Fax: 86-10-5761-3128 E-Mail: sson@lsis.com

• LSIS Guangzhou Office (China) Tel: 86-20-8326-6784 Fax: 86-20-8326-6287 E-Mail: sojhtroh@lsis.com

• LSIS Qingdao Office (China) Tel: 86-532-8501-6058 Fax: 86-532-8501-6057 E-Mail: sson@lsis.com

• LSIS Chengdu Office (China) Tel: 86-28-8670-3200 Fax: 86-28-8670-3203 E-Mail: yangcf@lsis.com

• LSIS ShenYang Office (China) Tel:86-24-2321-9050 Fax: 86-24-8386-7210 E-Mail: yangcf@lsis.com

• LSIS Jinan Office (China) Tel: 86-531-8699-7826 Fax: 86-531-8697-7628 E-Mail: yangcf@lsis.com

• LSIS Co., Ltd. Tokyo Office (Japan) Tel: 81-3-6268-8241 Fax: 81-3-6268-8240 E-Mail: jschuna@lsis.com

• LSIS Co., Ltd. Rep. Office (Vietnam) Tel: 84-8-3823-7890 E-Mail: sjbaik@lsis.com

• LSIS Moscow Office (Russia) Tel: 7-499 682 6130 E-Mail: info@lsis-ru.com

• LSIS Jakarta Office (Indonesia) Tel: 62-21-293-7614 E-Mail: dioh@lsis.com

Specifications in this catalog are subject to change without notice due to continuousproduct development and improvement2018. 10 2016. 10 LSIS Co., Ltd. All Rights Reserved. / (03) 2018. 10 Hu man Power