Overview
IEC TS 61287-2:2001 is a technical specification published by the International Electrotechnical Commission (IEC), focusing on power convertors installed on board railway rolling stock. This document, titled "Power convertors installed on board railway rolling stock – Part 2: Additional technical information," provides essential supplementary data for users and manufacturers of electric power convertors. It outlines basic circuit configurations, control methods, operation modes, and expected behavior of various types of convertors used in railway applications, including external commutated rectifiers, self-commutated rectifiers, choppers, and inverters. While the document presents typical charts and calculation methods for evaluating power quantities, it does not aim to offer an exhaustive technical guide.
Key Topics
- Convertor Categories: The specification reviews direct and indirect convertors, plus those used in multi-supply rolling stock. This covers the main types of rectifiers, choppers, and inverters relevant to railway traction and auxiliary systems.
- Circuit Configurations: Typical designs and connection diagrams for the various convertor types are included, assisting with practical implementation and system integration on rolling stock.
- Control Methods and Operation Modes: It discusses standard control schemes, emphasizing the dynamic and static operation of onboard convertors under different railway conditions.
- Calculation of Power Quantities: The specification lays out recommended methods to determine input/output voltage and current, frequency spectra, and the ripple and harmonics in both voltage and current. These calculations are key for ensuring system performance and compliance with technical requirements.
- Technical Information: Charts and methods provided in the document enable better prediction and evaluation of convertor behavior, supporting design and maintenance activities.
Applications
IEC TS 61287-2:2001 is especially valuable in the following scenarios:
- Design and Specification: Manufacturers and system designers can use the document as a reference when selecting, designing, or customizing power convertors for railway rolling stock.
- Performance Analysis: Maintenance engineers and operators apply the standard’s techniques to assess and monitor the quality of electrical power in service, identifying areas for improvement in efficiency or compliance.
- Interoperability: Adhering to the standard’s recommended methods aids in ensuring compatibility among different convertor types and between new and existing infrastructure, facilitating upgrades and fleet expansions.
- Compliance and Procurement: Procurement teams and regulatory authorities rely on the technical frameworks in IEC TS 61287-2 to set requirements, ensuring new rolling stock meets international expectations for onboard electrical systems.
Related Standards
For comprehensive coverage and consistency across railway power systems, consider these related IEC standards:
- IEC 61287-1 – Power convertors installed on board railway rolling stock – Part 1: Characteristics and test methods
- IEC 60077 Series – Electric equipment for rolling stock
- IEC 60349 Series – Electric traction – Rotating electrical machines for rail and road vehicles
- IEC 60571 – Electronic equipment used on rail vehicles
Using IEC TS 61287-2:2001 in conjunction with these standards ensures holistic and harmonized compliance, supporting safe, efficient, and reliable railway operations worldwide.
Keywords: IEC TS 61287-2, railway rolling stock, power convertors, rectifiers, choppers, inverters, control methods, circuit configurations, voltage ripple, current harmonics, onboard electrical systems, railway standards.