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首页> 外文学位 >An extended automatic generation control simulator for interconnected power systems incorporating adaptive load frequency control techniques and full system network representation.
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An extended automatic generation control simulator for interconnected power systems incorporating adaptive load frequency control techniques and full system network representation.

机译：用于互联电力系统的扩展自动发电控制模拟器，结合了自适应负载频率控制技术和完整的系统网络表示。

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An Extended Automatic Generator Control Simulator (EAGCS) has been developed to provide a digital real-time simulation environment for the analysis of power system phenomena in the frequency range below 1 Hz. Incorporation of the full system network solution including Tap-Changing Under Load (TCUL) transformers, generator capability curves, and load window models into the Automatic Generator Control (AGC) dynamics furnishes a realistic environment for AGC simulation.; A new energy control center for interconnected power systems has been developed. It performs a decentralized control of load frequency (LFC) and economic dispatch (ED). An adaptive control based on an implicit self-tuning (STR) algorithm was developed to perform the LFC function. A multi-area STR tracks the load-generation unbalance based on the area control error (ACE). The natural frequency response of each area is calculated on line and used as the frequency bias in the ACE computation.; A digital real-time algorithm for multi-area ED has been developed by means of the sorted table method. Piece-wise incremental cost curves are the basis for this fast approach. Generator penalty factors (PF) to account for transmission losses in the optimal generation allocation are calculated in a simulated real time.; Full system network representation is achieved by solving the decoupled power flow for the entire system. It provides the snapshot information of the system network at each AGC cycle. Reactive control features have been implemented into the power flow algorithm: generator capability curves, TCUL transformer discrete action, and load models as a function of voltage and frequency have been added. Integration of the system network into the AGC dynamics has been accomplished through area load deviation factors which account for area bus load adjustments from base values due to frequency and voltage deviations and area real transmission losses.; The EAGCS solution cycle is decomposed into two loops: a dynamic loop that solves for system frequency and power plant models, and the other a static loop that assesses the system network and energy control center functions. The system dynamics are calculated using the trapezoidal integration method with 0.5 second step. The static loop is performed every 4 seconds and involves the power flow, the adaptive LFC, the ED, and the TCUL transformer action.
机译：已经开发了扩展的自动发电机控制仿真器（EAGCS），以提供数字实时仿真环境，用于分析频率范围低于1 Hz的电力系统现象。将完整的系统网络解决方案（包括有载分接变换（TCUL）变压器，发电机能力曲线和负载窗口模型）整合到发电机自动控制（AGC）动力学中，为AGC仿真提供了现实的环境。已经开发了一个用于互连电源系统的新能源控制中心。它执行负载频率（LFC）和经济调度（ED）的分散控制。开发了一种基于隐式自整定（STR）算法的自适应控制来执行LFC功能。多区域STR根据区域控制误差（ACE）跟踪负载生成不平衡。在线计算每个区域的固有频率响应，并将其用作ACE计算中的频率偏差。利用排序表方法开发了一种用于多区域ED的数字实时算法。分段增量成本曲线是此快速方法的基础。在实时模拟中计算出在优化发电量分配中考虑传输损耗的发电机损失因子（PF）。通过解决整个系统的去耦功率流，可以实现完整的系统网络表示。它在每个AGC周期提供系统网络的快照信息。功率流算法已实现了无功控制功能：已添加了发电机能力曲线，TCUL变压器的分立作用以及作为电压和频率的函数的负载模型。将系统网络集成到AGC动力学中，是通过区域负载偏差因子完成的，该因子考虑了由于频率和电压偏差以及区域实际传输损耗而导致的基础值对区域总线负载的调整。 EAGCS解决方案循环分为两个循环：一个动态循环，用于求解系统频率和电厂模型；另一个静态循环，用于评估系统网络和能源控制中心的功能。使用梯形积分法以0.5秒的步长计算系统动力学。静态环路每4秒执行一次，涉及功率流，自适应LFC，ED和TCUL变压器动作。

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