Summary
A large-scale operational Inverter Based Renewable (IBR) project measured harmonic performance that exceeds the compliance threshold for the 6th order. Primarily, a control solution is developed and implemented on the Wind Turbine Generator (WTG) converters to reduce the harmonic voltage distortion. On-site investigations were conducted to support the solution development, where measurements from several locations and different operating configurations were reviewed in conjunction with the Wind Farm topology and electrical design. Control strategies that were proposed and tested include feedforward control, changing controller harmonics feedback loop input signals, and active harmonic cancelling approaches.
Read more Read lessThe compliance criteria considers successful measurements at the Point of Connection (PoC), above 132kV. Quality measurable values from site range between the 2nd to 9th orders and are presented in this paper. The main purpose for sharing the experiences from this site is to present the experiences of developing a controller solution in the hope to achieve a cost-effective and minimal impact resolution. To ensure project confidentiality, data beyond the WTG terminals is presented with best efforts of anonymisation. The objective of this case study is to increase awareness around IBR harmonics performance seen on site and showcase the complexities and difference in how controller changes may eventuate in an operating environment compared to theoretical expectations and lab test results.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | C4_10394_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | Australia |
| Study committees |
|
| File size | 925 KB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
ZHENG Inez {YiLin} - GOLDWIND, Australia; LIU YiNing - GOLDWIND, Australia; JOHN Blessy - GOLDWIND, Australia
Keywords
Harmonics, power quality, converter, operational performance, compliance
