ALSTOM ALSPA series drives

Advanced driving technology

1. ALSPA MV3000- Revolution in Drive Technology (22kW to 315kW)

The innovative ALSPA MV3000 is ALSTOM's fifth generation AC variable speed drive. Its design runs through the concept of 'easy ownership', setting new standards for variable speed drives in terms of size, ease of use, and process usability. With a power of up to 3600kW and a voltage of up to 690V, it has VVVF, encoder, vector and flux vector control modes, as well as a wide range of application functions.

Three key areas for improvement:

MicroCubicle ™ Concept: The ALSPA MV3000, capable of up to 315kW, adopts a chassis unit format and utilizes MicroCubic technology ™ concept This means that all components can be accessed from the front, there is space inside the unit for specific application enhancements, and the bookshelf format and side-by-side installation can achieve maximum packing density.

Drive Data Manager ™： The keyboard concept has been redefined, featuring menu navigation, online help, quick start, and instrument functions, all wrapped in an ergonomic large, easy to read display design.

NoStop ™ Concept: By monitoring key aspects of the process, environment, and itself, MV3000 can not only protect itself, but also take intelligent actions under adverse process conditions, which means higher factory availability and process problem warning.

DEITA format: ranging from 315kW to 3600kW, ALSPA MV3000 is provided in DEITA format. The DEITA format driver can be provided as a set of components ready for installation in a cabinet, or as a fully built and tested package ready for on-site installation. The DEITA format driver adopts a modular structure and uses the same control system as the ALSPA MV3000 chassis unit NoStop ™ Concept and Drive Data Manager ™， And combined with up to 6 DEITA inverter modules running in parallel.

2. ALSPA MD2000- Active Energy Management (18.5kW to 4.5MW)

What does AEM (Active Energy Management) mean? The ALSPA MD2000 AEM unit ensures power friendly characteristics regardless of operating conditions, as the motor pulse inverter MPS is also used as the main pulse inverter NPS, utilizing active front-end technology.

The main features of AEM are:

Control the phase position of the power supply current: phase shifting operation can be performed even at low levels, which means that regardless of the cos φ of the motor, only the required active power (unity power factor) needs to be obtained from the power supply.

Bidirectional energy control: Regardless of whether the drive is electric or braking, energy can be obtained from or fed back to the power source, avoiding the conversion of heat during the braking process.

Extremely high dynamic line current control: Adapting to the extremely high dynamics of motor current control, providing unique dynamic system response.

Sinusoidal line side current control: By using PWM switching IGBT semiconductor switches, non sinusoidal power supply currents that occur in diode rectifiers or thyristor inverters are avoided, reducing the line current distortion coefficient to 3% to 6%.

Typical applications:

Wind turbines: ALSTOM has provided stator or rotor AEM applications with power up to 1.5MW.

Test bench driver: A test bench for motors, gearboxes, rear axles, and complete drive systems, now equipped with ALSPA MD2000 AEM, enabling it to load the test object under real load and speed conditions.

DC driver

1. ALSPA VNTC (single quadrant) and WNTC (four quadrant) digital DC drivers

ALSPA VNTC (single quadrant) and WNTC (four quadrant) are compact, flexible, microprocessor controlled digital drivers used to power DC motors ranging from 9kW to 1.25MW. These drivers are fully configurable, and can be configured locally through the keypad or remotely through a PC. They can communicate with any data processing system through ALSPA F8000, WorldFIP, or any fieldbus or industrial network.

Key Features:

Durable and sturdy, suitable for simple applications or integrated into complex systems

Easy configuration through a small keyboard with only six keys and two displays

Many parameters are organized according to functional menus, which can be used to customize drivers and adapt to special applications

ALSPA VNTCOM (third-generation programming software tool) allows intelligent navigation function menu

Simple diagnosis: During fault detection, control parameters are stored for display and analysis

Software extension options: Second serial interface, dedicated program, etc

General Command Module for Single Quadrant and Four Quadrant Drivers

Speed measurement using a tachometer generator or pulse generator

Not sensitive to phase sequence

No need for network frequency adaptation

Speed control accuracy: 0.1% (full load variation)

Demagnetization protection

Built in up to 8A magnetic flux controller

Series or parallel 12 pulse installation

Electronic overload protection

Instantaneous overcurrent trip

Speed feedback loss protection

phase loss protection

Current overload: 150% of rated current for 30 seconds

Load dl/dt limit

Options: External drive controlled 20A flux module, 525V/660V power supply, WorldFIP and ALSPA F8000 fieldbus connection, 12 pulse power supply, additional options for MD29 circuit (second serial link, center winding system, digital speed control, PID control, user programming), etc.