siemens.com/reluctance-drive-system

The new synchronous-reluctance drive system with SIMOTICS and SINAMICS

Small step, big impact: Energy efficiency and dynamic performance

A new dimension of efficiency

The requirements placed on the efficiency of drive systems and their individual components are higher than ever before, and are continuing to rise. For conventional induction motor technology, the technical possibilities are essentially exhausted in this respect– and it is hardly pos-sible to increase efficiencies even further. Synchronous-reluctance motor technology represents an attractive alternative, especially for simpler applications, where it would not be cost-effective to use permanent-magnet synchronous motors. They achieve very high efficiencies at the rated operating point and in the partial load range – but at the same time have a high power density and dynamic performance.

High energy efficiency and power density

Synchronous-reluctance motors have a surprisingly high efficiency and also offer higher power reserves than com-parable induction motors. A converter ensures the neces-sary stability in operation. However, just the same as for induction systems, perfect coordination and integration of all of the system components is necessary so that the system can leverage its full potential.

An integrated system pays off

For an integrated synchronous-reluctance drive system from Siemens, SIMOTICS reluctance motors are precisely harmonized and coordinated with SINAMICS converters. It offers all of the advantages of well-proven standard platforms – and links these with leading-edge, energy-efficient reluctance motor technology. The complete drive system can be simply and quickly integrated into the auto-mation landscape using the TIA Portal. Optimally adapted software and services help to fully utilize all of the deci-sive potential for optimization in all of the lifecycle phases.

Small step, big impact

The switchover from an induction motor with converter to a synchronous-reluctance drive system represents a small step, however the impact is enormous: The high efficiency ensures minimum operating costs and high productivity, short payback time and a fast return on investment.

Synchronous reluctance – the new generation of drives

The use of synchronousreluctance technology ensures a noticeably lower energy consumption in all load ranges.Efficiency

Power

Induction

Synchronous reluctance

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Team player No. 1: the SIMOTICS reluctance motor

Energy efficiency

SIMOTICS reluctance motors have a higher efficiency at the rated operating point than comparable induction motors with efficiency class IE4. However, the efficiency is not just higher at the rated operating point. Especially in the partial load range, they have significantly lower losses than comparable induction motors.

Dynamic performance

When compared to high-efficiency induction motors, synchronous-reluctance motors have a moment of inertia that is up to one half less. This allows higher acceleration rates in cyclic operation, higher cycle rates and finally a higher degree of productivity. The response to load changes is significantly faster as the motor is more quickly magnetized when the load changes.

Thermal behavior

Synchronous-reluctance motors have high thermal reserves as a result of the minimum rotor losses in operation at the standard power. As a consequence, in continuous operation over a speed control range of 1:10, the torque does not have to be reduced – as is the case for self-ventilated induction motors. However, just the same as for force-ventilated induction motors, the rated torque is available even at low speeds. Further, synchronous-reluctance motors have a permanent overload capability of 20% over a 1:10 speed control range with a slightly lower efficiency when compared to that at the rated operating point.

Usability

SIMOTICS reluctance motors and induction motors have the same external design. Just the same as standard motors, synchronous-reluctance motors are available as SIMOTICS GP with aluminum enclosure as well as SIMOTICS SD with cast-iron enclosure. Identical frame sizes, shaft heights, shafts and flanges secure full compat-ibility so that the motors can be interchanged – and all of the mechanical options available for Siemens induction motors can be used.

Functionality

Temperature sensors monitor the motor temperature. Syn-chronous-reluctance motors are very rugged in operation thanks to the high thermal reserves and therefore the lower temperature rise of the mechanical system and the winding. The motor rating plate has a motor code to facili-tate simple commissioning.

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4

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Team player No. 2: the SINAMICS G120 converter

Energy efficiency

Variable-speed operation using SINAMICS converters saves significantly more energy than conventional methods such as throttle flaps, for example, for fluid flow machines. The vector control of SINAMICS G120 convert-ers facilitates precise closed-loop control of torque and motor magnetic flux. The flux is reduced in the partial load range to save energy. Optional, selectable additional electronic functions switch off the converter when the driven machine is not operational, a cascade circuit switches-in additional units if the power requirements for a single drive become too high.

Dynamic performance

The vector control with very high dynamic performance, also available for standard converters, facilitates precise control of the demanded torque.

Usability

The power scaling of the converters is designed so that SIMOTICS induction motors and synchronous-reluctance motors with the same shaft output can be operated with the same converter.

It is extremely simple to commission a SIMOTICS synchro-nous-reluctance motor connected to a SINAMICS G120 converter, as the most important parameters are already predefined. To call these up, you only have to enter the code number from the motor rating plate into the con-verter. When switching on for the first time, the stator resistance is automatically measured and the closed-loop control appropriately set. The closed-loop control can be optimized for the driven load in additional commissioning steps.

Functionality

The pole position is identified when switching on, which avoids sudden jerky movements; there is no forward or backward motor alignment motion. The motors are ther-mally monitored using the temperature sensor integrated as standard – and the closed-loop control is adapted as a function of the temperature. A flying restart function allows the converter to be switched to a spinning motor, for instance after a power failure. Also motors spinning in the opposite direction can be synchronized when switch-ing on.

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... for use in various applications

A perfect team

Maximum energy efficiency

The system efficiency of an inte-grated synchronous-reluctance drive system from Siemens lies signifi-cantly above the minimum require-ments of the highest system effi-ciency class IES2 that is defined.

Minimum operating costs

When compared to induction motor systems, energy usage can be signifi-cantly reduced as a result of the far higher efficiency, especially in the partial load range.

High degree of productivity

The lower intrinsic moment of inertia of synchronous-reluctance motors allows very short cycle times, there-fore increasing the productivity of a plant or machine.

IES2

IES1

IES0

77

Horizontal integration

Vertical integration

Lifecycle

Integrated drive portfolio

All converters, motors, couplings and gearboxes are from a single source. Perfectly integrated, perfect interoperation. For all power and performance classes. As standard or completely customized solution.

Integrated in the automation technology: from the field through the controller level up to the MES thanks to Totally Integrated Automation (TIA).

For every application.

High efficiency, from full load down to partial load. Short payback time.

Low operating costs over the complete lifecycle.

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Boost your energy efficiency and reduce losses by up to

50 %

Slash your engineering times with our TIA Portal by up to

30 %

Achieve a return on investment in less than

1 year

Significantly better than IES2

The European eco design standard EN 50598 defines eco design requirements placed on energy-related products for drive systems in electrically driven machines. The energy efficiency requirements are extended from individ-ual drive components up to the complete system, as well as to electrically driven machines.

With a combination of SIMOTICS reluctance motor and SINAMICS G120 converter, Siemens is offering a powerful drive system with high energy efficiency. With up to 50 % lower losses than the reference standard IES2, it easily sat-isfies the requirements of this system efficiency class.

Convincingly efficient

Both SIMOTICS reluctance motors as well as SINAMICS G120 converters are integrated in the Totally Integrated Auto-mation Portal (TIA Portal) – and therefore in the complete automation landscape from the field up to the manage-ment level. This greatly simplifies engineering, commis-sioning and diagnostics – and opens up completely new dimensions regarding efficiency. Engineering times are slashed by up to 30 %, for instance.

SINAMICS Startdrive is integrated in the TIA Portal. Through SINAMICS Startdrive, the outstanding user-friend-liness of the TIA Portal is now available for drive technol-ogy. As a consequence, a high degree of functionality with simple operability is achieved.

Fast payback

The high energy saving potential of SIMOTICS reluctance motors ensures low operating costs and a high efficiency. This means that payback times are significantly reduced: When compared to standard induction motors in IE2, the somewhat higher initial investment has a payback time of less than 12 months, when compared to a drive system with IE3 motor, even after five months, for a pump load cycle according to the standardized profile “Blue Angel” in two-shift operation and power costs of 8 ct/kWh.

IES2

IES1

IES0

9

Fast commissioning

Commissioning is especially fast and straight-forward as a result of the motor code.The motor rating plate has a code number. When this code is entered at the IOP of the SINAMICS G120 converter, then the most important parameters are already predefined. This avoids mistakes and saves time.

Highlights at a glance• High energy efficiency from the partial load

range up to the rated operating point• High dynamic performance through

optimized control and low intrinsic moment of inertia

• Precise speed for encoderless control through synchronous operation

• High overload capability for rugged, reliable operation

• Minimum operating costs, fast payback and high productivity of your plant or system

Fast commissioning, fast savings

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Technical data

Selection data, reluctance drive system for 50 Hz and 400 V line voltage

SIMOTICS reluctance motor SINAMICS frequency converter

Rate

d po

wer

(k

W)

Fram

e si

ze

Torq

ue (N

m)

Rate

d

curr

ent (

A)

Spee

d (r

pm)

Mot

or c

ode

Mot

or

Artic

le N

o.

Fram

e si

zePo

wer

M

odul

e Ar

ticle

No.

Cont

rol U

nit

Artic

le N

o. 1)

2)

0.55 80M 3.5 1.58 1,500 60008 1FP1 ■ 04-0DB22-1 ... A 6SL3210-1PE11-8 ■ L10.75 80M 4.75 2.15 1,500 60009 1FP1 ■ 04-0DB32-1 ... A 6SL3210-1PE12-3 ■ L14 112M 25.5 10 1,500 60010 1FP1 ■ 04-1BB22-1 ... B 6SL3210-1PE21-1 ■ L05.5 132S 35 13 1,500 60001 1FP1 ■ 04-1CB02-1 ... B 6SL3210-1PE21-4 ■ L07.5 132M 47.5 17.1 1,500 60002 1FP1 ■ 04-1CB22-1 ... B 6SL3210-1PE21-8 ■ L011 160M 70 24.5 1,500 60003 1FP1 ■ 04-1DB22-1 ... C 6SL3210-1PE22-7 ■ L015 160L 95 33.5 1,500 60004 1FP1 ■ 04-1DB42-1 ... C 6SL3210-1PE23-3 ■ L0 6SL3243-0BB30-1 ■■■18.5 180M 118 42 1,500 60005 1FP1 ■ 04-1EB22-1 ... D 6SL3210-1PE23-8 ■ L022 180L 140 49 1,500 60006 1FP1 ■ 04-1EB42-1 ... D 6SL3210-1PE24-5 ■ L030 200L 191 68 1,500 60007 1FP1 ■ 04-2AB52-1 ... D 6SL3210-1PE26-0 ■ L0

Motor series EMC filter InterfaceSIMOTICS GP – aluminum frame 0 Unfiltered U • USS HA3SIMOTICS SD – cast iron frame 5 Class A filter A • Modbus RTU

• BACnet MS/TP• PROFIBUS PA3• PROFINET FA0

1) The Control Unit must have a minimum firmware release of 4.7 SP3.2) An IOP 6SL3255-0AA00-4JA1 operator panel is recommended to set up and operate the converter.

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Discover the advantages of the interaction between SIMOTICS reluctance motors and SINAMICS G120 converters in an integrated drive system.

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siemens.com/reluctance-drive-system

Article-No.: PDLD-B10002-01-7600 Dispo 21503 180/73761 WS 04162.0 Printed in Germany © Siemens AG 2016

Subject to changes and errors. The information given in this document only contains general descriptions and/or performance features which may not always specifically reflect those described, or which may undergo modification in the course of further development of the prod-ucts. The requested performance features are binding only when they are expressly agreed upon in the concluded contract. All other designations in this document may repre-sent trademarks whose use by third parties for their own purposes may violate the proprietary rights of the owner.

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