Inverter-based generation sources’ significant uptake has seen most power system operators place a strong focus on unlocking their capability to respond to frequency excursions. Consequently, the effective utilization of conventional generation assets to improve frequency regulation in power systems has received less focus. This letter highlights two crucial aspects (governor deadbands and governor inactivity) pertinent to conventional generation assets, which must be considered by the system operator when operating power systems with a high share of inverter-based sources. Poor governor control is shown to significantly impact frequency regulation, thus undermining power system operation and performance, in an Australian case study. Furthermore, a high share of governor inactivity causes power system instability owing to degradation in governor response. For power systems with a high share of inverter-based sources, implementation of properly chosen governor deadbands and mandatory governor response is recommended to improve system frequency regulation.

中文翻译：

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同步发电机调速器响应：大量基于逆变器的可再生能源对性能的影响

基于逆变器的发电资源已得到广泛采用，大多数电力系统运营商将重点放在释放其对频率偏移的响应能力上。因此，有效利用常规发电资产改善电力系统中的频率调节受到的关注较少。这封信强调了与常规发电资产相关的两个关键方面（总督死区和调速器不活动），当操作具有大量逆变器电源的电力系统时，系统运营商必须考虑这两个方面。在澳大利亚的一个案例研究中，调速器控制不佳会严重影响频率调节，从而破坏电力系统的运行和性能。此外，大量的调速器不活动会由于调速器响应的下降而导致电力系统不稳定。对于具有基于逆变器的源的高份额的电力系统，实施适当地选择死区调速器和调速器强制响应的建议，以改善系统的频率调节。