ABB ACS2000 User Guide

Product brochure

Medium voltage AC drive ACS 2000, 250 – 1600 kW, 4.0 – 6.9 kV

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ACS 2000 – simple and reliable motor control

The ACS 2000 is the latest member of the ABB medium voltage AC drives family providing reliable motor control for a wide range of applications.

The ACS 2000 is designed for high reliability, easy installation and fast commissioning reducing the total cost of ownership.

With the integration of an Active Front End (AFE), line side harmonics are minimized without the use of expensive, specialized transformers and with the added benefit of regeneration and power factor correction.

With its compact footprint, the ACS 2000 can be retrofitted to control standard induction motors via a direct connection to 4.0 – 6.9 kV line supplies (direct-to-line). Alternatively, the ACS 2000 can be operated with an input isolation transformer to allow for flexible line side power voltages. It is available with an integrated transformer or it can be connected to an external two-winding transformer.

The ACS 2000 direct-to-line combines the cost savings of a transformerless variable speed drive system with the benefits of Voltage Source Inverters (VSIs), including excellent availability and reliability, high and constant power factor and superior dynamic control performance.

The heritage of ABB’s VSI topology, along with a patented IGBT-based multi-level control, provides a proven track record for reliable and motor friendly medium voltage AC drive solutions.

Fields of application

Key product features

––Suitable for use with or without an input isolation transformer

––Direct-to-line connection (transformerless) provides lowest cost of ownership

––Active Front End (AFE) for minimal line side harmonics, regeneration and power factor correction

––Simple drive system integration

––Three in - three out cabling technique for quick and easy installation

––Suitable for new or existing induction motors

––Modular design provides high reliability and low maintenance costs

Industries	Applications
Cement, mining and minerals	Conveyors, crushers, mills, mine hoists, fans and pumps
Chemical, oil and gas	Pumps, compressors, extruders, mixers and blowers
Metals	Fans and pumps
Pulp and paper	Fans, pumps, refiners, vacuum pumps and chippers
Power generation	Fans, pumps, conveyors and coal mills
Water	Pumps
Other applications	Test stands, wind tunnels and sugar mills

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Key features

The ACS 2000 general purpose drive offers unique features which provide superior application flexibility with a standard solution.

Line supply connection flexibility

The ACS 2000 provides different line supply connection options, each offering unique benefits. The ACS 2000 is available for connection to an external input isolation transformer, with an integrated input isolation transformer or for use without a transformer. The latter allows a direct connection to the industrial line supply (direct-to-line).

Direct-to-line

The ACS 2000 direct-to-line can lower investment costs substantially. Due to its compact size and lighter weight compared to a drive requiring a transformer, it also results in lower transportation costs and needs less space in the electrical room.

The ACS 2000 can be easily retrofitted to fixed speed motors while the direct-to-line technology results in quick and easy installation and commissioning.

For operation with a transformer

External transformer

For applications where a voltage-matching input transformer is needed or galvanic isolation from the power supply is required, the ACS 2000 can be connected to a conventional two-winding oil or dry-type converter transformer.

Integrated transformer

Alternatively, the ACS 2000 is also available with an integrated input isolation transformer.

Topology of the ACS 2000 for operation with an external transformer

Topology of the ACS 2000 for direct-to-line connection

Topology of the ACS 2000 with an integrated input transformer

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Active Front End for network friendly and energy efficient operation

The ACS 2000 is available with an Active Front End (AFE) which can be used in conjunction with a simple input isolation transformer or for direct connection to 4.16 or 6.0 – 6.9 kV line supply. It provides low harmonics and enables regeneration and reactive power compensation.

Low harmonic signature

The AFE provides a low harmonic signature which meets the most stringent requirements for harmonic distortion as defined by relevant standards. This avoids the need for harmonic analysis or the installation of network filters.

Regeneration

For applications with high braking energy, the ACS 2000 is available with optional regeneration capability, which feeds back braking energy to the line supply. This further reduces the overall energy consumption.

Power factor correction

For applications where other loads connected to the same line supply cause leading or lagging power factor, the ACS 2000 is available with a static VAR compensation option. With static VAR compensation, a smooth line supply voltage profile can be maintained and reactive power penalties can be avoided.

Powerful performance with DTC

Precise and reliable process control, together with low energy consumption, results in top performance. The ACS 2000 drive control platform uses ABB’s award-winning Direct Torque Control (DTC), resulting in the highest torque and speed performance as well as the lowest losses ever achieved in medium voltage AC drives. Control of the drive is immediate and smooth under all conditions.

Motor friendly output waveform for use with new or existing motors

The ACS 2000 provides near sinusoidal current and voltage waveforms making it compatible for use with standard motors and cable insulation. This is achieved with ABB’s patented multilevel topology which utilizes one DC link enabling a multi-level output waveform with a minimum number of power components.

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