IEC 62590-1:2025

Overview

IEC 62590-1:2025 from the International Electrotechnical Commission (IEC) is the foundational standard detailing the general requirements for electronic power converters used in fixed installations that supply power to railway systems. This first part of the IEC 62590 series specifies the common requirements, definitions, and performance criteria for power converter applications across a wide spectrum of electric traction systems, including conventional railways, metros, tramways, trolleybuses, automated transport systems, magnetic levitated transport, and electric road systems.

The standard covers key types of electronic power converters-AC/DC converters, DC converters, and AC converters-and sets guidelines for applications that prioritize improved power quality and energy efficiency. Notably, IEC 62590-1:2025 supersedes previous standards (IEC 62589:2010 and IEC 62590:2019), reflecting advances such as energy efficiency provisions and refined requirements for different converter configurations.

Key Topics

IEC 62590-1:2025 addresses several critical aspects for the fixed installation of electronic power converters in railway applications:

• Scope and Applicability
  • Applies to mainline and urban rail transport power supply installations, not to converters serving auxiliary (non-traction) purposes except for referencing essential criteria.
• Converter Types
  • Includes AC/DC, DC, and AC-AC converters for railway fixed installations.
  • Covers devices designed for power quality improvement and energy saving.
• System Configurations
  • Describes various traction power supply systems (3AC, 1AC, DC) and associated converter interfaces.
• Performance Requirements
  • Specifies environmental, operational, and safety conditions including insulation coordination, voltage and frequency ranges, harmonics, and energy efficiency.
  • Outlines cooling methods, short-circuit withstand requirements, marking, and mechanical protection.
• Testing and Compliance
  • Defines routine and type tests, including visual, operational, insulation, EMC, harmonic, and mechanical tests, to ensure conformity.
• Interface Model
  • Introduces a detailed model for systems connections and interaction, supporting compatibility and reliability.
• Energy Efficiency
  • Establishes requirements for energy savings and loss minimization, reflecting industry trends in sustainable railway operation.

Applications

The guidelines in IEC 62590-1:2025 are vital for organizations and professionals involved in:

• Design and Manufacturing
  • Developers of electronic power converters for railway and urban transport infrastructure follow these universal requirements for safety, reliability, and interoperability.
• Railway System Integration
  • System designers use this standard to ensure converters operate correctly within varied rail networks, maintaining compliance with environmental and safety regulations.
• Procurement and Tendering
  • Operators and authorities reference IEC 62590-1:2025 to specify required performance and compatibility in procurement documents, facilitating effective supply chain communication.
• Operation and Maintenance
  • Provides maintenance teams with reference criteria for inspections, routine testing, and verification of ongoing compliance and operational safety.

Related Standards

IEC 62590-1:2025 stands as the base document in a hierarchical series. Related standards expand on particular types of applications or provide supporting guidance:

• IEC 62590-2-1: DC traction applications – Uncontrolled rectifiers
• IEC 62590-2-2: DC traction applications – Controlled converters
• IEC 62590-3-1: AC traction applications – Electronic power compensators
• IEC 62590-3-2: AC traction applications – Static frequency converters
• IEC 62695: Traction transformers for fixed railway installations
• IEC 60850: Railway applications – Supply voltages of traction systems
• IEC 62236 Series: Electromagnetic compatibility in railway environments

By providing a unified framework for power converter requirements, IEC 62590-1:2025 enhances safety, efficiency, and compatibility across international railway infrastructure projects, supporting the widespread adoption of innovative rail electrification solutions.