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Generator response following as a primary frequency response control strategy for VSC-HVDC connected offshore wind farms

机译:发电机响应作为VSC-HVDC连接的海上风电场的主要频率响应控制策略

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摘要

The present study attempts to collect relevant research on the subject of synthetic inertia control strategies for VSC-HVDC transmission links, particularly those connected to offshore windfarms. A number of ideas have been proposed in literature. First, various control strategies at the grid side converter interfacing the DC link with the AC power system are presented. This includes strategies exploiting the power-frequency relationship that naturally exists in AC systems with a high X/R ratio. Other strategies utilize the voltage-frequency relationship that exists when the DC link capacitor is asked to provide active power injection or absorption in response to frequency deviations. Then some coordinated strategies are outlined which build upon and combine other strategies (including those associated with traditional synchronous machines) in order to enhance the operational capability of the decoupled non-synchronous system with respect to synthetic inertia services. Some options for communication are also identified.
机译:本研究试图收集有关VSC-HVDC输电线路,特别是与海上风电场相连的输电线路的合成惯性控制策略的相关研究。文献中已经提出了许多想法。首先,提出了将直流母线与交流电源系统接口的电网侧变流器的各种控制策略。这包括利用X / R比率高的AC系统中自然存在的功率-频率关系的策略。其他策略利用当要求直流母线电容器响应频率偏差提供有功功率注入或吸收时存在的电压-频率关系。然后概述了一些协调策略,这些策略以其他策略(包括与传统同步电机相关的策略)为基础并加以组合,以增强解耦非同步系统相对于合成惯性服务的运行能力。还确定了一些通讯选项。

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