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Inertial response
Inertial Response is a function of large synchronous generators, which are large synchronous rotating masses, and which acts to balance supply and demand for electric power systems, typically the electrical grid. If there is a power imbalance between electricity supply and demand the rotational frequency of the sychronous generators either speeds up (low supply) or slows down (low demand) to instantly rebalance the system. This speed up or slow down in sychronous generator speed results in a change in AC frequency ideally within the allowable frequency range of that system. i.e. A 50 Hz system may allow a ±0.5 Hz deviation in AC power.〔(【引用サイトリンク】url=http://www.aemo.com.au/planning/wind_integration_investigation.html )〕
== Simulating inertial response with windpower ==
When the grid frequency is too high or too low, active power flow through the high-voltage direct current link will be ramped down or up. In turn, the wind generation will increase or decrease the blade angles to reduce or increase the captured wind power through pitch control.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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