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Frequency Support and Stability Analysis for an Integrated Power System with Wind Farms

机译：风电场集成电力系统的频率支持和稳定性分析

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摘要

In order to handle the challenges associated with large capacities wind farms integrated in the power grid, different techniques such as optimization algorithms, artificial intelligence and others are employed and studied. Recently, many researches focus on the frequency regulation problem by showing the role of kinetic energy stored in the rotor side of wind turbine in supporting the grid frequency. The main challenge of the inertia emulation scheme is to release the maximum possible amount of kinetic energy without violating operating limits of the wind turbines and keeping in mind the grid integration standards for wind farms. However, no selection criteria for the control parameters has yet been given. The objective in this paper is to consider the constraints and limitations on the rotor speed and buffered power in DFIG wind turbines and also to highlight the influence of the controller parameters on the stability of the power grid and the operation of the wind farms. The stability of the power system with high penetration of wind farms is analyzed based on Kuramoto theory and a sufficient stability condition is derived and mathematically proved. Finally the stability condition is verified in a test power system with a large integration of wind power.
机译：为了处理与集成在电网中的大容量风电场相关的挑战，采用和研究了不同技术，如优化算法，人工智能等。最近，许多研究专注于频率调节问题，通过显示存储在风力涡轮机的转子侧的动能在支持网格频率时的作用。惯性仿真方案的主要挑战是释放最大可能的动能量，而无需违反风力涡轮机的运行限制，并牢记风电场的电网整合标准。但是，尚未给出控制参数的选择标准。本文的目的是考虑对转子速度和DFIG风力涡轮机的缓冲功率的限制和限制，并且还突出了控制器参数对电网稳定性的影响以及风电场的操作。基于Kuramoto理论分析了具有高穿风电场渗透的动力系统的稳定性，并得出了足够的稳定性条件和数学证明。最后，在测试电力系统中验证了稳定性条件，具有大量的风力。

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