Conventional load frequency control primarily relies on large synchronous generation units to ensure regulation of the system frequency. However, its performance deteriorates as the system parameters, including inertia and droop coefficients, deviate from original system design. This letter proposes an augmented load frequency control (ALFC) to ensure robust frequency regulation under diurnal variations in system parameters that are expected in the future, renewables-rich power system. The superior performance of ALFC is demonstrated by several case studies, and its stability is assessed by small-signal analysis.

中文翻译：

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变惯量系统中的负载频率控制

传统的负荷频率控制主要依靠大型同步发电机组来确保系统频率的调节。然而，随着系统参数（包括惯性和下垂系数）偏离原始系统设计，其性能会恶化。这封信提出了一种增强负载频率控制 (ALFC)，以确保在未来可再生能源丰富的电力系统中预期的系统参数的昼夜变化下稳健的频率调节。几个案例研究证明了 ALFC 的优越性能，并通过小信号分析评估了其稳定性。