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Design considerations for inertia emulating controllers used in variable speed wind turbines

机译：变速风力涡轮机中惯性仿真控制器的设计注意事项

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High penetration of wind power into power systems is likely to cause difficulties in maintaining system frequency, as in contrast to conventional synchronous generators, variable speed wind turbines (VSWTs) do not directly contribute to system inertia. To overcome this issue, it has been proposed to emulate inertia by VSWTs by extracting the kinetic energy of the turbine rotor. However, proper designing of the inertia emulating controller is essential for the optimal use of the energy potential and safe operation of the wind turbine. Some of the common controller concepts used for inertia emulation have inherent weaknesses, limiting the frequency support provided by VSWTs. This paper highlights these design considerations by simulating the inertial responses provided by a typical controller. To overcome the identified issues, a new controller design is proposed. Its capability to provide an improved frequency response while reducing the adverse impacts on the turbine rotor is demonstrated.
机译：风力进入电力系统的高度渗透可能会导致难以维持系统频率，因为与传统的同步发电机相比，变速风力涡轮机（VSWT）不会直接导致系统惯性。为了克服这个问题，已经提出了通过提取涡轮转子的动能来通过VSWT模拟惯性的方法。但是，惯性仿真控制器的正确设计对于最佳利用能量和确保风力涡轮机的安全运行至关重要。用于惯性仿真的一些常见控制器概念具有固有的弱点，从而限制了VSWT提供的频率支持。本文通过模拟典型控制器提供的惯性响应，突出了这些设计注意事项。为了克服已确定的问题，提出了一种新的控制器设计。证明了它具有提供改进的频率响应，同时减少对涡轮转子的不利影响的能力。

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