Balancing Authority Area Model and its Application to the Design of Adaptive AGC Systems
Balancing Authority Area Model and its Application to the Design of Adaptive AGC Systems
复制标题
平衡权限区域模型及其在自适应AGC系统设计中的应用
DOI：
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发表时间：
2016
影响因子：
6.6
通讯作者：
A. Domínguez
中科院分区：
文献类型：
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作者：
D. Apostolopoulou;P. Sauer;A. Domínguez
在本文中，我们开发了一个降阶模型的同步发电机动态通过选择模态分析。然后，我们使用这个降阶模型，制定一个平衡的权力（BA）区动态模型。接下来，我们使用BA区域模型来设计自适应自动发电控制（AGC）方案，具有自调整增益，减少了所需的调节量，并潜在地降低了相关成本。特别地，我们使用BA区域模型来导出BA区域的实际频率响应特性（AFRC）、区域控制误差、系统频率和总发电量之间的关系。我们利用这种关系在线估计AFRC，并设置频率偏差因子等于在线估计。结果，AGC系统由将系统频率和真实的功率交换恢复到期望值所需的确切MW数驱动。我们证明了所提出的想法与一个单一的机器无限总线，9总线3机西部电力协调理事会（WECC），和140总线48机系统。
In this paper, we develop a reduced-order model for synchronous generator dynamics via selective modal analysis. Then, we use this reduced-order model to formulate a balancing authority (BA) area dynamic model. Next, we use the BA area model to design an adaptive automatic generation control (AGC) scheme, with self-tuning gain, that decreases the amount of regulation needed and potentially reduces the associated costs. In particular, we use the BA area model to derive a relationship between the actual frequency response characteristic (AFRC) of the BA area, the area control error, the system frequency, and the total generation. We make use of this relationship to estimate the AFRC online, and set the frequency bias factor equal to the online estimation. As a result, the AGC system is driven by the exact number of MW needed to restore the system frequency and the real power interchange to the desired values. We demonstrate the proposed ideas with a single machine infinite bus, the 9-bus 3-machine Western Electricity Coordinating Council (WECC), and a 140-bus 48-machine systems.