论文标题
同等的惯性由快速调节资源下垂控制
Equivalent Inertia Provided by Droop Control of Fast Frequency Regulation Resources
论文作者
论文摘要
快速频率调节资源（FFRS）的常规惯性控制策略（即基于VSG的基于VSG和基于PD的策略）可能会导致系统振荡，因为它们的发电机动力学仿真。唯一的基于Drop的惯性控制策略是解决此问题的可行想法。这封信定量研究了FFR的下垂控制提供的等效惯性。首先，提出了一种基于等效的方法来评估下垂控制所提供的等效惯性，该惯性表明，具有恒定下垂系数的下垂控制提供了时间变化的等效惯性。然后，为FFR提出了基于时间变化的基于DARIANT-DROP的等效惯性控制（VDIC）策略，该策略可以提供所需的恒定惯性支持而无需引入类似发电机的动力学。案例研究验证了VDIC策略的有效性。
Conventional inertia control strategies (i.e., the VSG-based and PD-based strategies) for the fast frequency regulation resources (FFRs) might lead to system oscillations due to their emulations of generator dynamics. The only-droop-based inertia control strategy is a feasible idea to address this issue. This letter quantitatively investigates the equivalent inertia provided by the droop control of the FFRs. First, an equivalent-scenario-based method is proposed to evaluate the equivalent inertia provided by the droop control, which shows that the droop control with a constant droop coefficient provides time-variant equivalent inertia. Then, the time-variant-droop-based equivalent inertia control (VDIC) strategy is proposed for the FFRs, which can provide the required constant inertia support without introducing generator-like dynamics. A case study verifies the effectiveness of the VDIC strategy.
