Assessment of inertial and primary frequency control from wind power plants in the Mexican electric power grid,Wiley Interdisciplinary Reviews: Energy and Environment

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Assessment of inertial and primary frequency control from wind power plants in the Mexican electric power grid
Wiley Interdisciplinary Reviews: Energy and Environment ( IF 5.4 ) Pub Date : 2019-06-17 , DOI: 10.1002/wene.356
Miguel Ramírez‐González ₁ , Rafael Castellanos‐Bustamante ₁ , Jorge G. Calderón‐Guizar ₁ , Om P. Malik ₂

Affiliation

Large‐scale integration of converter‐based renewable energy sources into power systems, such as wind generation, can lead to frequency stability issues due to the variable nature and lack of inertia of these technologies in combination with the gradual replacement of conventional generating units. However, wind turbine generators (WTGs) can be exploited to provide frequency support and keep system frequency stability requirements. A case study considering the Mexican Electric Power System is presented in this study to highlight both the impact of large‐scale deployment of inverter‐interfaced wind energy generation on system frequency response, and the participation of WTGs in inertial and primary frequency control (IPFC) as a mitigation approach. By incorporating synthetic inertia and droop control functions into the active power control loop of WTG converters, IPFC by wind generation is assessed for several wind shares, different active power modulation strategies based on the rate of change of frequency and frequency deviation, and several IPFC contribution levels under critical contingencies for generation outage. Simulation results show the combination of increasing share of wind energy generation in the study system and retirement of conventional generation has a clearly negative impact on system frequency dynamics. However, the incorporation of IPFC functions into wind power generators of the sample system, with appropriate control gain values, may contribute to effectively achieve an improved system performance in terms of grid frequency response under high wind power penetration scenarios.

中文翻译：

评估墨西哥电网中风力发电厂的惯性和一次频率控制

将基于转换器的可再生能源大规模集成到风力发电等电力系统中，由于这些技术的可变性和缺乏惯性以及逐步取代传统发电机组，可能导致频率稳定性问题。但是，可以利用风力涡轮发电机（WTG）提供频率支持并保持系统频率稳定性要求。本研究提出了一个考虑墨西哥电力系统的案例研究，以突显大规模部署逆变器接口风能发电对系统频率响应的影响，以及WTG参与惯性和主频率控制（IPFC）作为缓解方法。通过将合成惯性和下垂控制功能整合到WTG变频器的有功功率控制回路中，评估了风力发电的IPFC的几种风能份额，基于频率和频率偏差的变化率的不同有功功率调制策略以及几种IPFC的贡献紧急情况下的发电水平。仿真结果表明，风能发电在研究系统中所占份额的增加与常规发电方式的淘汰对系统频率动态有明显的负面影响。但是，将IPFC功能结合到具有适当控制增益值的样本系统的风力发电机中，

更新日期：2019-06-17

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