Impact of Wind Variation on the Measurement of Wind Turbine Inertia Provision

Wind turbine (WT) control is being adapted to enable inertia provision that supports network frequency on short timescales. Measuring the contribution from wind turbines critical asses of service as well understand WT operation. However, measurement methods disagree impact and how approximate its effects. This paper uses data a ScottishPower Renewables (SPR) test grid connected farm highlight can external power measurements are unable measure inertia. Two proposals made improve measurements. First, International Electrotechnical Commission (IEC) industrial standard for adapted, secondly, an alternate method using system identification proposed considers characteristics WT’s dynamic response. The literature assessed output time-domain models find sensitivity their accuracies variations in wind, frequency, control-setting conditions. inaccurate during variable conditions but approaches accuracy. findings study then validated by applying SPR experimental confirm most accurate approach.