ALSTOM ALSPA series drives

On site directional control: Advanced control technology integrated on the chip, whether equipped with encoder feedback or not, can achieve excellent control dynamics and accuracy

Configurable functions: The technical controller, summation unit, multiplier, divider, and logic module can be configured through PC driver software

Four quadrant operation: can be achieved through DC braking, brake chopper, common DC bus or power feedback

Global applicability: Suitable for various power supply voltages in different countries within the range of 380V to 480V

Technical specifications:

Power supply voltage: 3AC 380V -15% to 480V+10%

Power frequency: 45 to 65Hz

Power factor: λ N=0.90 inductive; cos φ1 > 0.95

Overload capacity: 150% for 60 seconds, every 10 minutes

Output voltage: 3AC 0V to input voltage

Output frequency: 0 to 400Hz

Efficiency:>0.97

Speed adjustment range: without encoder 1:100 (electric)/1:20 (power generation), with encoder>1:1000

Speed accuracy: 0.5% without encoder, 0.2% with encoder

Protection level: IP20, penetration installation can reach IP41, can provide IP54 cold plate version

Compliant with standards: CE, UL, CSA, EN 61800-3, etc

Optional accessories: including power reactor, power filter, ferrite ring, motor filter, motor reactor, brake module BM12, brake chopper BC32, power and feedback module PS12/24/45, PC interface, CANopen component, PC driver software ALSPAPCS, etc.

Medium voltage drive and dedicated drive system

1. ALSPA VDM and CDM - Medium Voltage Drivers

ALSTOM's medium voltage drive series includes voltage source and current source inverters suitable for all asynchronous, synchronous, and induction motor applications. All industrial needs are met within the medium voltage drive range: new transmission devices, modifications to existing constant speed devices, high torque capability, wide speed range, selection of optimal standard power supply voltage at MV level, selection of optimal standard motor, high efficiency, short-circuit protection, etc.

The medium voltage drive series offers many powerful features: 2 or 4 quadrant capability, excellent dynamic performance, sine wave output waveform, lowest cable cost, modern digital control, complete historical records and fault diagnosis, fieldbus and serial interface options, compatibility with the ALSTOM monitoring software series.

Compared with competitive driving systems, the advantages brought by medium voltage range technology include: close to unity power factor, reactive power compensation through active front-end, flexible power system connection, low harmonic distortion, regenerative energy, and direct connection up to 10kV without the need for output transformers.

2. SYNC HRODRIVE and Static Inverter - Control and Start of Synchronous Motor

SYNC HRODRIVE is a current source, load commutated inverter that enables smooth speed control of synchronous motors. These drivers are highly suitable for applications that require high dynamic performance for constant torque loads or centrifugal loads. The multifunctional and energy-saving control system used internally by SYNC HRODRIVE can achieve a return on investment period as short as 12 months within the process working cycle compared to fixed speed drives.

The needs met by the SYNC HRODRIVE series:

New transmission device

Modification of existing fixed speed synchronous motors

High torque capability

Soft start of large synchronous motors

Design of high and low voltage motors

20: 1 Speed range

Features: Complete historical records and fault diagnosis, four quadrant capability, good dynamic performance and quick response to load changes, no fuse design (using fast electronic protection).

Soft start application: In this case, SYNC HRODRIVE is used as a static frequency converter to start large synchronous motors. The design and manufacturing of SFC require comprehensive expertise in power electronics technology, as well as the ability to ensure the best match between the start-up SFC and the machine. ALSTOM has extensive experience and expertise in providing start-up systems, and technological advancements have led to significant simplification of converters and related control systems.

3. CYCLODRIVE - Induction or synchronous motor control for low-speed/high torque applications

CYCLODRIVE is a series of cyclic inverter drive systems that are highly suitable for applications involving high power, harsh operating cycles, optimal dynamic performance, and low-speed operation. The CYCLODRIVE series meets the requirements of excellent dynamic performance, four quadrant capability, wide weak magnetic range, high motor design freedom (such as adapting to narrow spaces, low inertia, etc.), and high torque throughout the entire speed range.

Features: 1000:1 speed range, complete historical records and fault diagnosis, simple and validated converter, significant advantages over DC motor technology, suitable for induction or synchronous motors.

Typical applications: high-performance rolling mills and roller drives, mine hoists, ship propulsion, semi autogenous mills and ball mills, cement mills, large conveyors and crushers, testing facilities, large centrifuges, etc.