2011 vrp presentation

8/8/2019 2011 VRp presentation

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TSi PowerTSi Power 20201111

VRp (precision PWM voltage regulator)

VRpVRp--2000 ~ VRp2000 ~ VRp--3000030000

(2(2~30~30 kkwattwatt, single, single--phasephase 120 &120 & 230230 vacvac models)models)

VRpVRp--6000 ~ VRp6000 ~ VRp--100000100000((6~506~50 kwattkwatt, three, three--phasephase 120/208120/208 vacvac models &models &

6~1006~100 kwattkwatt, three, three--phase 230/400phase 230/400 vacvac models)models)Presented by: Nam Paik, Director of SalesPresented by: Nam Paik, Director of Sales

TSi Power CorporationTSi Power Corporation

Antigo, Wisconsin, USAAntigo, Wisconsin, USA

www.tsipower.comwww.tsipower.comEE--mail:mail: [email protected]@tsipower.com

Tel: +1Tel: +1--770770--339339--98919891


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VRp technology benefitsServoServo--motor based or tapmotor based or tap--switchingswitching AVRsAVRs are not suitable forare not suitable for

sensitive load equipment such as power supplies, rectifierssensitive load equipment such as power supplies, rectifiers

using solidusing solid--state devices and airstate devices and air--conditioners, because of theirconditioners, because of theirslow response time and inherent performance limitations.slow response time and inherent performance limitations.

VRpVRp (precision PWM voltage regulators)(precision PWM voltage regulators) can be used tocan be used to

protect any electronic equipment, particularly in countries withprotect any electronic equipment, particularly in countries with

inadequate infrastructures for the generation and distribution oinadequate infrastructures for the generation and distribution offAC power.AC power.

VRpVRp is superior thanks to its fast 20 ms response time andis superior thanks to its fast 20 ms response time and

cyclecycle--byby--cycle voltage regulation without interrupting the loadcycle voltage regulation without interrupting the load

current.current.


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2240 V40 V230 V230 V

220000 VV

230 V230 V

300 V300 V

11660 V0 V

Upper limit for sensitiveUpper limit for sensitive

electronic equipmentelectronic equipment

Lower limit for sensitiveLower limit for sensitive


Maximum AC inputMaximum AC input

Minimum AC InputMinimum AC Input(Note:(Note: DerateDerate outputoutput

capacity by 20% forcapacity by 20% for

voltage of 150~179V)voltage of 150~179V)

Operating AC Input Voltage Range and Output Regulation ofOperating AC Input Voltage Range and Output Regulation of VRpVRp

(for 230(for 230 vacvac output models)output models)

333030 VV

150150 VV

188188 VV

226565 VV


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125125 VV

115115 VV105105 VV

115115 VV

150150 VV

8585 VV

Upper limit for sensitiveUpper limit for sensitive


Lower limit for sensitiveLower limit for sensitive


Maximum AC inputMaximum AC input

Minimum AC InputMinimum AC Input

(Note:(Note: DerateDerate outputoutputcapacity by 20% forcapacity by 20% for

voltage ofvoltage of 75~8975~89V)V)

Operating AC Input Voltage Range and Output Regulation ofOperating AC Input Voltage Range and Output Regulation of VRpVRp

(for 115(for 115 vacvac output models)output models)

160160 VV

7575 VV

9595 VV

130130 VV


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AVR Performance Comparison Chart

Charactersitics PWM based AVR

(VRp)

Servo-motor

based AVR

Relay/SCR based tap-changer

AVR

Regulation interrupts power path No No Some

Stability Excellent Good Good

Correction speed Very fast Very slow Slow

Correction time 20 mS 500~5000 mS 200~1000 mS

Auto fast bypass Yes Manual Manual

Voltage overshoot during mains cycling None Yes Yes

Operating Input Voltage Ranger 150~315V (very wide) 160~300V (wide) 160~280V typical (narrow)

Over load capacity Excellent Excellent Fair

Load compatibility Excellent Good Good

Limitations on load types None Some Inductive loads

Reliability Excellent Good Fair

Protection of Load Eqmt. Excellent Poor Fair

Field Maintenance None Required NoneSize per watt Very Compact Compact Compact

Technology PWM switched IGBTs

impose correction

voltage on buck-boost

primary

Servo turns variable

transformer to impose

regulation voltage on

buck-boost primary

A multiplicity of relays impose

regulation voltage on multiple buck-

boost primaries

Comments No moving parts and

limited number of

interconnections.

Simple to service in the

field.

Requires frequent

replacement of

brushes. Output

contactor too slow to

guarantee load is not

exposed to high

mains voltage.

Complex electronics with many

interconnections and circuit boards

impact performance and reliability

negatively.


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Cell Site Need for AVR

Developing countries have insufficient infrastructures for the gDeveloping countries have insufficient infrastructures for the generationenerationand distribution of electricity.and distribution of electricity.

Too many electricity users competing for limited available powerToo many electricity users competing for limited available power andand

distribution capacity, cause significant voltage fluctuations andistribution capacity, cause significant voltage fluctuations and powerd power

interruptions.interruptions.

The mains voltage vary between 160 to 300V in many countries.The mains voltage vary between 160 to 300V in many countries. Standard rectifier/chargers and airStandard rectifier/chargers and air--conditioners are not designed toconditioners are not designed to

withstand such a wide input voltage window.withstand such a wide input voltage window.

The likely result is lower reliabThe likely result is lower reliabiility and/or equipment failure possiblylity and/or equipment failure possibly

leading to unscheduled downtime; and increased costs forleading to unscheduled downtime; and increased costs for

maintenance and repair.maintenance and repair.


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Cell Site Equipment

Rectifier chargers,Rectifier chargers,

AirAir--conditioning equipment,conditioning equipment,

UPS in some instances,UPS in some instances,

Equipment with AC inputEquipment with AC input switchmodeswitchmode power supplies,power supplies,

Smoke detectors and miscellaneous equipmentSmoke detectors and miscellaneous equipment


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Safe Area of OperationSafe Area of Operation

22110 V0 V

22550 V0 V

264 V264 V

184 V184 V

Various AC Mains Input Voltage WindowsVarious AC Mains Input Voltage Windows

11550 V0 V

331515 VVBorder line OperationBorder line OperationShut down and/or damageShut down and/or damage toto

equipmentequipment

DeratingDerating and increased heatand increased heat

(brownout)(brownout)

SevereSevere deratingderating, shut down, shut downand/or damageand/or damage to equipmentto equipment

Borderline operation (overBorderline operation (over--voltage)voltage)


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VRp vs. Other AVRs ServoServo--motor based or tapmotor based or tap--switchingswitching AVRsAVRs are not suitable for sensitiveare not suitable for sensitive

load equipment such as power supplies,load equipment such as power supplies, rectitifersrectitifers using solidusing solid--statestate

devices and airdevices and air--conditioners, because of their slow response time andconditioners, because of their slow response time and

inherent performance limitations.inherent performance limitations.

VRpVRp (PWM precision voltage regulators) can be used to protect any(PWM precision voltage regulators) can be used to protect any

electronic equipment, particularly in countries with inadequateelectronic equipment, particularly in countries with inadequate

infrastructures for the generation and distribution of AC power.infrastructures for the generation and distribution of AC power.

VRpVRp is superior thanks to its fast response time, cycleis superior thanks to its fast response time, cycle--byby--cycle voltagecycle voltage

regulation without interrupting the load current, as well as othregulation without interrupting the load current, as well as otherer

performance advantages discussed in the following presentation.performance advantages discussed in the following presentation.


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Degree of Protection VRpVRp is designed to provide maximum protection for all types ofis designed to provide maximum protection for all types of

electronic and electrical devices & systems;electronic and electrical devices & systems;

The level of protection is superior due to extremely wide operatThe level of protection is superior due to extremely wide operatinging

input voltage range of 1input voltage range of 1550 to 330 vac.0 to 330 vac.

OtherOther AVRsAVRs are too slow to respond and operates over narroware too slow to respond and operates over narrowinput voltage range of 1input voltage range of 1880~2800~280 vacvac only (typical).only (typical).


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Reliability VRpVRp has no moving parts;has no moving parts;

VRpVRp has few PCBs;has few PCBs;

VRpVRp has few interconnections.has few interconnections.

ServoServo AVRsAVRs require frequent brush replacement;require frequent brush replacement;

taptap--switchingswitching AVRsAVRs are quite complicated with tooare quite complicated with too

many parts and interconnections.many parts and interconnections.


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Auto Bypass

Prevents unexpected shut down of missionPrevents unexpected shut down of mission--critical equipment;critical equipment;

Output ofOutput of VRpVRp is between 180is between 180 -- 265 VAC (even when in bypass).265 VAC (even when in bypass).

OtherOther AVRsAVRs have manual bypass, which results in unscheduledhave manual bypass, which results in unscheduled

shutdown.shutdown.


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Regulation does not interruptpower path

Prevents switching surge voltages;Prevents switching surge voltages; Permits operation with generators;Permits operation with generators;

Reduces risk of damage to load.Reduces risk of damage to load.

TapTap--switchingswitching AVRsAVRs interrupt power path.interrupt power path.


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20 mS Voltage Correction Time

Eliminates voltage step changes;Eliminates voltage step changes;

Ideal for all sensitive electronic devices;Ideal for all sensitive electronic devices; Reduces risk of damage to load.Reduces risk of damage to load.

Other AVR technologies take 200~Other AVR technologies take 200~ 33000000 mSmS

(0.2~3 seconds)(0.2~3 seconds) before correction is madebefore correction is made


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+/-2 % Output Voltage Stability

Superior protection for airSuperior protection for air--conditioners;conditioners;

Ideal for all sensitive electronic devices;Ideal for all sensitive electronic devices; Minimized step voltage changes.Minimized step voltage changes.

TapTap--changerchanger AVRAVRss typicallytypically provide onlyprovide only

+/+/-- 5% to +/5% to +/--10% output voltage stability10% output voltage stability


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Soft Start Reduces inrush current to a minimum when mains cycleReduces inrush current to a minimum when mains cycle

off/on;off/on;

Ideal shock absorber;Ideal shock absorber;

Enhances systems reliability;Enhances systems reliability;

Ideal for airIdeal for air--conditioners, rectifiers and all sensitiveconditioners, rectifiers and all sensitive


Other technologies use random start via electroOther technologies use random start via electro--mechanical contactor or relaysmechanical contactor or relays


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Stability Works well even with inferior or soft (highWorks well even with inferior or soft (high--impedance)impedance)

mains AC source;mains AC source;

Predictable performance;Predictable performance;

Ideal for airIdeal for air--conditioners, rectifiers and all types ofconditioners, rectifiers and all types of

sensitive electronic devicessensitive electronic devices

Other technologies may have trouble with demandingOther technologies may have trouble with demanding

loads with soft mains AC source (high sourceloads with soft mains AC source (high sourceimpedance)impedance)


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Overload Capacity UptoUpto 500% (for 10 cycles or 200 ms) ;500% (for 10 cycles or 200 ms) ;

Ideal for starting airIdeal for starting air--conditioners, motors, rectifiers,conditioners, motors, rectifiers,

switchmodeswitchmode supplies and others with high inrush currents;supplies and others with high inrush currents;

VRpVRp does not have to be oversized.does not have to be oversized.

SomeSome AVRsAVRs have difficulty with motors, airhave difficulty with motors, air--conditionersconditioners

and other loads with high startand other loads with high start--up current requirements.up current requirements.


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Load Compatibility VRpVRp is compatible with all loads;is compatible with all loads;

Eliminates guessing and need for testing of AVR withEliminates guessing and need for testing of AVR with

load equipment before installationload equipment before installation

TapTap--switcherswitcher AVRsAVRs are not compatible with inductiveare not compatible with inductive

loads such as motors.loads such as motors.

ServoServo--motor basedmotor based AVRsAVRs are not fast enough toare not fast enough to

protect electronic loads.protect electronic loads.


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Additional Benefits of Outdoor VRp

Reduces temperature inside container;Reduces temperature inside container;

Increases air conditioner lifetime;Increases air conditioner lifetime;

Enhances overall systems reliability;Enhances overall systems reliability;

Extra space inside the container can be usedExtra space inside the container can be used

for revenue generating equipment (andfor revenue generating equipment (and

increase profitability for operators)increase profitability for operators)

2011 vrp presentation

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