论文标题
可扩展的Nyquist稳定性标准，并应用于电力系统小信号稳定性
A Scalable Nyquist Stability Criterion with Application to Power System Small-Signal Stability
论文作者
论文摘要
为具有异质子系统的电力系统得出了分散的稳定性标准。使用广义的Nyquist标准得出了频率稳定性和稳定性的条件。由此产生的可扩展性NYQUIST稳定性标准仅需要本地可用的信息，并提供了将新子系统连接到任意大型网络的先验稳定性保证。该方法可以应用于一组代理集。例如，具有时间延迟，非最低相执行器甚至不稳定动态的代理。可伸缩的Nyquist标准没有任何具有同步惯性的节点之间的区别，因此可以轻松地在分析中包括转换器交换器交换器可再生能源。该方法在详细的非线性电力系统模型上进行了验证，该模型的频率下垂由风力发电协助提供的水电调查员提供。
A decentralized stability criterion is derived for a power system with heterogeneous subsystems. A condition for frequency stability and stability of interarea modes is derived using the generalized Nyquist criterion. The resulting scalable Nyquist stability criterion requires only locally available information and gives a priori stability guarantees for connecting new subsystems to an arbitrarily large network. The method can be applied to a general set of agents. For instance, agents with time-delays, nonminimum phase actuators or even unstable dynamics. The scalable Nyquist criterion makes no distinction between nodes with or without synchronous inertia, making it easy to include converter-interfaced renewable energy in the analysis. The method is validated on a detailed nonlinear power system model with frequency droop provided by hydro governors assisted by wind power.
