IEC TR 62001-2:2016 PDF

Overview

IEC TR 62001-2:2016 is a Technical Report from the IEC that provides guidance on the performance and verification of AC harmonic filters used on the AC side of line‑commutated HVDC converters. It covers the frequency range relevant to harmonic distortion and audible‑frequency disturbances for conventional AC filter technology. The report excludes filters intended specifically for power‑line carrier (PLC) or radio‑frequency interference spectra. This edition (2016) is a technical revision that, together with Parts 1, 3 and 4, replaces the earlier IEC TR 62001 (2009).

Key topics and technical requirements

• Performance guidance for harmonic filters - criteria and methods to evaluate AC filter effectiveness against converter harmonics and network interaction.
• Current‑based interference criteria (Clause 3) - procedures to assess telephone interference risk and determine when telephone interference limits are required.
• Telephone interference limits and TIF - guidance on defining IT/TIF requirements, including a new recommendation to include a TIF requirement in technical specifications.
• Verification and field testing - recommended equipment, subsystem tests, system tests, commissioning checks, and in‑service monitoring for harmonic performance, reactive power control and audible noise.
• Network impedance and IT limits - specification of IT limits that depend on AC network harmonic impedance and the impact of voltage level on filter design needed to meet an IT criterion.
• Induced noise calculations - informative annexes (including Dubanton equations) for estimating induced telephone noise and assessing residual/balanced interference.
• Practical design implications - examples and annexes illustrating how pre‑existing harmonics, future growth, filter Mvar sizing, and line characteristics affect required filter performance.

Practical applications and who uses this standard

IEC TR 62001-2:2016 is essential for:

• HVDC project engineers and system designers specifying AC filters and assessing converter‑to‑network interactions.
• Utilities and transmission planners evaluating compatibility with existing networks and setting interference limits.
• Filter manufacturers and consultants developing filter designs, performance tests and commissioning procedures.
• Test & commissioning teams performing field verification, harmonic measurements and audible‑noise checks.
• Regulators and permitting authorities who need objective criteria for telephone interference and harmonic compatibility.

Use cases include specification of AC filter performance in tender documents, design evaluation studies, commissioning test plans, telephone‑interference risk assessments, and ongoing monitoring strategies.

Related standards

• IEC TR 62001‑1, IEC TR 62001‑3, IEC TR 62001‑4 (companion parts)
• References and related guidance cited within the report include IEC TR 61000‑3‑6 and IEEE 519 (for voltage distortion and planning levels).

Keywords: IEC TR 62001-2:2016, HVDC, AC filters, harmonic filters, telephone interference, TIF, IT limits, harmonic impedance, Dubanton equations, filter performance, commissioning.