IEC 61800-2:2021

Overview

IEC 61800-2:2021 is an international standard published by the International Electrotechnical Commission (IEC) that specifies general requirements and rating specifications for adjustable speed AC power drive systems. This third edition consolidates and updates previous versions, merging high-voltage requirements from IEC 61800-4 and refining performance, safety, and testing guidelines. The standard applies to adjustable speed electric AC power drive systems feeding AC motors from line-to-line voltages up to 35 kV AC (50/60 Hz) or up to 1.5 kV DC input sides. It excludes traction applications and electric vehicles.

The standard focuses on semiconductor power conversions, including control, protection, monitoring, measurement, and AC motor interfaces. It provides manufacturers and customers with a non-exhaustive list of performance and functional attributes for selecting and specifying power drive systems (PDS), back-to-back drives (BDM), and converter drives (CDM).

Key Topics

• System Classification and Topology: IEC 61800-2 defines principal system parts, classifies PDS by voltage levels (low and high voltage), and presents typical topologies including bypass, redundant configurations, cooling strategies, and common DC link arrangements.

• Ratings and Performance: The standard addresses input/output ratings, operating quadrants, overload cycles, pulse voltages at motor terminals, and control equipment ratings. It also covers operational performance such as fault supervision, minimum status indication, and input/output device management.

• Safety and Functional Requirements: Includes general and functional safety guidelines, electromagnetic compatibility (EMC), ecological design aspects focusing on energy efficiency and environmental impact, and earthing requirements.

• Environmental and Testing Specifications: Specifies conditions for service, transport, and storage environments, along with type testing standards to verify compliance in aspects like electrical safety, EMC, functional safety, ecodesign, and mechanical robustness.

• Communication and Interface Profiles: References interoperability relating to communication profiles within the IEC 61800-7 series and guidelines for driven equipment interfaces, including torsion analysis and critical speed considerations.

• Compliance Methodologies: Offers methodologies for specifying and evaluating BDM/CDM/PDS compliance, providing frameworks for agreements between manufacturers and customers or defining minimum requirements for commoditized products.

Applications

IEC 61800-2:2021 is highly relevant for engineers, designers, and manufacturers involved in:

• Industrial Automation: Ensuring reliable and standardized adjustable speed drives for applications such as pumps, compressors, conveyors, and machine tools.

• Energy Management: Developing energy-efficient drive systems compliant with ecodesign principles, reducing power losses and environmental impact.

• Power Conversion Systems: Designing and specifying high-voltage AC drives for large motors in industries like mining, marine, and manufacturing.

• Equipment Testing and Certification: Establishing test specifications that align design requirements with compliance verification, facilitating product certification and market acceptance.

• Integration with IEC Standards: Aligning adjustable speed drive systems with related standards covering EMC (IEC 61800-3), electrical and functional safety (IEC 61800-5-1 and 5-2), load duty profiles (IEC TR 61800-6), and communication systems (IEC 61800-7).

This standard benefits manufacturers by enabling the development of configurable yet robust products suited to varying customer requirements and helps customers by providing a clear framework for ordering and verifying adjustable speed drive systems.

Related Standards

To ensure a comprehensive approach for adjustable speed drive systems, IEC 61800-2 links with several related IEC standards, including:

• IEC 61800-1: General requirements applicable to DC power drive systems feeding DC motors.

• IEC 61800-3: Electromagnetic compatibility (EMC) requirements for adjustable speed electrical power drive systems.

• IEC 61800-5-1 and IEC 61800-5-2: Safety requirements, including general electrical safety and functional safety for power drive systems.

• IEC TR 61800-6: Load duty aspects impacting drive system performance.

• IEC 61800-7 series: Communication profiles to ensure interoperability in power drive systems.

• IEC 61800-8: Power interface voltage specifications.

• IEC 61800-9 series: Ecodesign and energy efficiency requirements.

• IEC 61800-4: Previously separate requirements for high-voltage PDS now integrated into IEC 61800-2.

Employing IEC 61800-2 in conjunction with these standards helps stakeholders design, operate, and maintain adjustable speed AC power drive systems that meet international best practices for performance, safety, environmental impact, and interoperability.

Keywords: IEC 61800-2, adjustable speed AC power drive systems, power drive system standards, rating specifications, performance criteria, high-voltage drives, low-voltage drives, power converter safety, functional safety, EMC compliance, ecodesign, electrical motor drive testing, industrial automation standards, semiconductor power conversion, motor control standards, IEC drive system classification.