AI 中文总结
该研究针对输电系统电压与无功超限问题，提出基于同伦的离散控制VVO方法，协调OLTC、CB等设备，经多系统实验可生成可行设定值并降低成本，可集成至现有调度实践。
AI 中文摘要
输电系统运营商常通过潮流计算（ACPF）协调市场出清的直流调度与交流物理特性，但得到的设定值仍可能违反电压（Volt）和无功（VAR）限值。因此，维持安全的电压曲线与充足的无功支撑需要可在运行中实施的快速校正决策。本文提出一种基于同伦的新型连续方法，用于离散控制的电压/无功优化（VVO），该方法协调可切换设备，如有载分接开关变压器（OLTC）和电容器组（CBs）。对IEEE、PEGASE和RTE系统的实验表明，所提VVO可在实际运行时间内生成交流可行的设定值，同时降低电压偏差、无功调度量和发电成本。以ACPF调整后的直流调度为输入时，VVO也能取得与交流可行调度相当的性能，表明其可自然集成到现有输电调度实践中，以加强电网运行。
英文摘要
Transmission system operators often reconcile market-cleared DC dispatches with AC physics through power-flow solves (ACPF), yet the resulting setpoints can still violate voltage (Volt) and reactive-power (VAR) limits. Maintaining secure voltage profiles and adequate VAR support therefore requires fast corrective decisions that are implementable in operation. This paper presents a novel homotopy-based continuation method for discrete-control Volt/VAR Optimization (VVO) that coordinates switchable devices, such as on-load tap-changing transformers (OLTCs) and capacitor banks (CBs). Experiments on IEEE, PEGASE, and RTE systems show that the proposed VVO produces AC-feasible setpoints within practical runtime, while reducing voltage deviation, VAR dispatch, and generation cost. VVO also achieves comparable performance using ACPF-adjusted DC dispatches as inputs relative to AC-feasible dispatches, indicating that it can be integrated naturally into existing transmission dispatch practices to strengthen grid operation.
