Cooperative Peak Shaving and Voltage Regulation in Unbalanced Distribution Feeders
Cooperative Peak Shaving and Voltage Regulation in Unbalanced Distribution Feeders
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DOI：
10.1109/tpwrs.2021.3069781
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发表时间：
2021-11
影响因子：
6.6
通讯作者：
Yifei Guo;Qianzhi Zhang;Zhaoyu Wang
中科院分区：
文献类型：
--
作者：
Yifei Guo;Qianzhi Zhang;Zhaoyu Wang
通过一个协同优化框架，考虑了分布式发电机（DG）、蓄电池储能系统（BESS）和电压调节装置的协同工作，在满足网络和装置运行约束的同时，最小化运行成本，实现配电网的调峰和电压调节一体化。为了考虑负荷需求和发电量的不确定性，我们将协同优化模型转换为两阶段随机规划，其中BESS的荷电状态（SoC）轨迹和电压调节设备的操作在第一阶段进行优化，用于日前调度，而DG和BESS的无功功率则留在第二阶段，用于潜在的日内调度，以处理短期电压问题。在IEEE 37节点试验馈线上验证了所提出的协同优化方案，并与其他实践进行了比较。
This paper considers the co-operation of distributed generators (DGs), battery energy storage systems (BESSs) and voltage regulating devices for integrated peak shaving and voltage regulation in distribution grids through a co-optimization framework, which aims to minimize the operational costs while fulfilling the operational constraints of network and devices. To account for the uncertainties of load demand and generation, we then convert the co-optimization model into a two-stage stochastic program where state-of-charge (SoC) trajectories of BESSs and operation of voltage regulating devices are optimized at the first stage for day-ahead scheduling, while the reactive powers of DGs and BESSs are left at the second stage for potential intra-day scheduling to handle short-term voltage issues. The proposed co-optimization scheme is validated on the IEEE 37-node test feeder and compared with other practices.