ABB ACS1000 series medium voltage frequency converter

ABB ACS1000 series medium voltage frequency converter

Product positioning and core advantages

ACS1000 is a medium voltage AC drive solution launched by ABB, designed specifically for controlling medium and high voltage motors. It covers a power range of 1.1-63 MW and is compatible with voltage levels of 2.3-11 kV. Its core advantages include:

Efficient and reliable: Adopting direct torque control (DTC) technology, the dynamic response is fast (speed step response ≤ 10 ms), the speed regulation accuracy is high (± 0.1% rated speed), and the power factor is ≥ 0.95 (at full load), reducing power grid losses.

Flexible adaptation: Supports multiple motor types (asynchronous motor, synchronous motor), can be configured as a single drive or multi drive system, and adapts to the load characteristics of different industrial scenarios (such as constant torque, variable torque).

High availability: Modular design supports online maintenance, key components such as power modules and cooling systems can be redundantly configured, with a long mean time between failures (MTBF), reducing the risk of downtime.

Environmental Protection and Compliance: The input current harmonic distortion (THD) is low (≤ 5%), and it can meet international standards without the need 

Technical architecture and core components

1. Topological structure

Adopting a three-level NPC (neutral point clamp) inverter design, precise control of voltage and frequency is achieved through IGBT power devices. Compared to traditional two-level topologies, the output harmonics are lower and the motor insulation is friendly.

2. Core components

Power module: including rectifier, inverter, and buffer circuit, divided into different frame sizes according to power level (such as Frame 1-6), supporting parallel expansion.

Control unit: Based on ABB DTC technology, integrated PLC function, supports logic control, sequence control, and PID regulation, and can be operated through Panel Control panel or upper system.

Cooling system: Provides two solutions: air cooling (AC) and water cooling (WC). Water cooling is suitable for high power density scenarios (such as 10 MW or more) and supports connection to heat exchangers or cooling towers.

Auxiliary equipment: optional EMC filters, input isolation transformers, braking units, sine wave filters (to reduce motor harmonic losses), etc.

Model specifications and performance parameters

1. Power and voltage range

Voltage level (kV) Power range (MW) Suitable motor current (A) Typical application scenarios

2.3 1.1-18 300-4500 fans and pumps

3.3 1.5-25 250-4800 Compressor and Conveyor Belt

4.16 2.0-30 300-4200 rolling mill and crusher

6.6 3.0-40 250-3500 Mine Hoist

11 5.0-63 250-3200 Large pump stations, power plant auxiliary equipment

2. Key Performance

Speed range: 1:1000 (closed-loop control), 1:100 (open-loop control).

Overload capacity: 110% rated load for 60 seconds, 150% rated load for 2 seconds (applicable for starting impact loads).

Efficiency: ≥ 97% under rated load (including isolation transformer).

Protection level: Power unit IP21/IP23 (air cooling), IP54 (water cooling), control cabinet IP42/IP54.

Application scenarios and typical configurations

1. Main industry applications

Electricity: boiler fan, feedwater pump, condensate pump, desulfurization system.

Metallurgy: main drive of rolling mill, coiler, blast furnace fan.

Oil and gas: oil pumps, compressors, and natural gas pipeline pressurization.

Water treatment: large sewage pumps, water supply booster pumps.

Mining: Mine hoist, crusher, scraper conveyor.

2. Typical configuration examples

Standard configuration for fans/pumps: ACS1000 host+air cooling+input isolation transformer+MODBUS communication.

High precision transmission configuration: ACS1000 host+water cooling+encoder feedback+PROFIBUS-DP+sine wave filter.

Service and Support

Full lifecycle services: including installation and commissioning, training, preventive maintenance, remote monitoring (through ABB Ability) ™ Platform, spare parts supply, etc.

Customized solution: Cabinet layout, interface protocols (such as PROFINET, EtherNet/IP), redundant configuration, etc. can be designed according to customer needs.