论文标题
在有限的反应能力下自动自适应局部电压控制
Automatic Self-Adaptive Local Voltage Control Under Limited Reactive Power
论文作者
论文摘要
分布式能源资源的扩散越来越大，对分销网络中的Volt/var控制问题提出了新的挑战。为此，本文提出了通过本地控制分布式能源的VAR输出的自动自适应局部电压控制（ASALVC）。在此ASALVC策略中，每个总线代理都可以根据随时间变化的系统更改在本地和动态地调整其电压下垂函数。电压下垂功能与特定于公交的时变斜率和截距相关联，可以在本地更新，仅基于本地电压测量值，而无需进行通信。该局部电压控制的稳定性，收敛性和最佳性能分析。此外，通过在线调整DERS在线的VAR输出，进一步提出了ASALVC的在线实施，以解决实时系统更改。进行数值测试案例以验证和证明ASALVC的有效性和优势。
The increasing proliferation of distributed energy resources has posed new challenges to Volt/VAr control problems in distribution networks. To this end, this paper proposes an automatic self-adaptive local voltage control (ASALVC) by locally controlling VAr outputs of distributed energy resources. In this ASALVC strategy, each bus agent can locally and dynamically adjust its voltage droop function in accordance with time-varying system changes. The voltage droop function is associated with the bus-specific time-varying slope and intercept, which can be locally updated, merely based on local voltage measurements, without requiring communication. Stability, convergence, and optimality properties of this local voltage control are analytically established. In addition, the online implementation of ASALVC is further proposed to address the real-time system changes by adjusting VAr outputs of DERs online. Numerical test cases are performed to validate and demonstrate the effectiveness and superiority of ASALVC.
