ABB AC6000 Medium voltage AC drives

ABB AC6000 Medium voltage AC drives

INTRODUCTION

ABB’s ACS 6000 medium voltage drive provides the optimum solution for applications where high power and maximum reliability is required. Since its introduction, the ACS 6000 has gained an excellent reputation for high quality and reliability. As a result ABB has worldwide the largest installed base of medium voltage multidrives incorporating the latest technology.

Key product features

 • DTC control platform for exceptionally high torque and speed performance 

 • IGCT power semiconductors for highest reliability and efficiency 

 • Line Supply Unit (LSU) for two-quadrant operation with a constant power factor of 0.96 over   the whole speed range 

 • Active Rectifier Unit (ARU) for four-quadrant operation and reduced harmonics, adjustable power factor 

 • Common DC bus for single and multiple-motor operation and energy recuperation 

 • Modular design for optimum configurations

Powerful performance

Fast and accurate process control in combination with low energy consumption results in top performance. The motor control platform of the ACS 6000 is based on ABB’s award-winning Direct Torque Control (DTC) technology. DTC provides the highest torque and speed performance ever achieved in medium voltage drives. As a result, control   of the drive is immediate and smooth under all conditions.

High efficiency and reliability

The ACS 6000 uses a revolutionary power semiconductor switching device known as IGCT (Integrated Gate Commutated Thyristor) researched and designed by ABB. The use of IGCTs results in a less complex, more efficient and reliable high-power medium voltage drive, minimizing operating and maintenance costs.

ACS 6000 advantages

 • High power and maximum reliability 

 • Smooth torque over the entire speed range 

 • Applications operate at optimum efficiency 

 • Compact and high power density 

 • Low noise and vibration levels 

 • Minimized energy consumption with common DC bus 

 • Regeneration of rotating energy

Flexible

Optimum configuration

The modular design of the ACS 6000 allows the optimum configuration of any drive system. Each configuration, consisting of well-proven and certified modules, exactly fits the customer’s requirements.

Smooth system integration

The ACS 6000 integrates easily into the industrial environment because it can be optimally configured for single-motor and multi-motor applications without additional control equipment. The high power density   and compact design and the drive’s communication abilities minimize the   overall installation and operational costs.

The drive can be connected to the network through one or several transformers depending on power and harmonics requirements. Even a transformerless solution is available for certain applications

Technology highlights

Part count

Part count The fewer the parts the higher the reliability. ABB uses high power semiconductor switching devices and a topology that brings down the part count to a minimum. This results in a reliable, compact and service-friendly drive

Fuseless design 

The ACS 6000 medium voltage drive is designed to operate safely without fuses, resulting in less spare parts and better overall reliability. This allows fast startup after safety interruptions.

Encoderless 

Encoders are known to cause failures due to   their exposed position on the motor. ABB’s ACS 6000 medium voltage drive can operate without encoder, thereby reducing maintenance costs and ensuring high levels of availability.

IGCT switching devices 

ABB has developed a high power semiconductor called IGCT (Integrated Gate Commutated Thyristor) to allow the use of modern control algorithms, which can eliminate harmonics, improve dynamic response time and maintain, or even control, the power factor.  

Common DC bus

The ACS 6000 modularity is based on the common DC bus converter principle, where several motors (synchronous and induction) can be connected to the same DC bus. With f ive sizes of inverter modules available (3, 5, 7, 9 and 11 MVA), the optimum configuration for a specific application can be reached by combining the modules with minimum engineering effort. By linking the modules   in parallel, the power can be increased to   27 MVA.