发电技术 ›› 2025, Vol. 46 ›› Issue (1): 113-125.DOI: 10.12096/j.2096-4528.pgt.23182
• 新能源 • 上一篇
杨剑锋, 李婷, 杨爱民, 冯子宁
收稿日期:
2023-12-28
修回日期:
2024-03-08
出版日期:
2025-02-28
发布日期:
2025-02-27
作者简介:
基金资助:
Jianfeng YANG, Ting LI, Aimin YANG, Zining FENG
Received:
2023-12-28
Revised:
2024-03-08
Published:
2025-02-28
Online:
2025-02-27
Supported by:
摘要:
目的 随着高渗透率分布式光伏接入配电网,功率倒送、电压越限等问题愈发严重。为此,提出了一种基于改进的黑洞优化算法的电能路由器优化方案。 方法 通过对电能路由器进行端口稳态建模,建立了含多端口电能路由器的高渗透光伏配电网统一模型,并针对该模型提出了电压偏差与线路损耗最小的优化目标。在甘肃某地区的配电网简化模型下,采用改进的黑洞优化算法进行优化求解,并对比分析了加入电能路由器前后配电网系统的数据。 结果 光伏输出功率为0%、50%、100%时,电压最小(最大值)分别提升(降低)了10.86%、3.16%、9.64%,各节点电压幅值控制在0.93~1.07 pu范围内;线路平均损耗下降了57.94%~81.56%。 结论 通过加入电能路由器以及采用相应的优化策略,实现了分布式光伏配电网的潮流优化。研究成果对提高分布式光伏在配电网中的渗透率具有重要意义。
中图分类号:
杨剑锋, 李婷, 杨爱民, 冯子宁. 含电能路由器的光伏配电网电压越限问题潮流优化研究[J]. 发电技术, 2025, 46(1): 113-125.
Jianfeng YANG, Ting LI, Aimin YANG, Zining FENG. Research on Tidal Optimization of Voltage Overrun Problem in Photovoltaic Distribution Network With Electrical Energy Router[J]. Power Generation Technology, 2025, 46(1): 113-125.
端口类型 | 控制模式 |
---|---|
DC/AC端口 | 定 |
定 | |
DC/DC端口 | 定 |
下垂控制法 |
表1 电能路由器各端口控制模式
Tab. 1 Control modes for the port of electrical energy router
端口类型 | 控制模式 |
---|---|
DC/AC端口 | 定 |
定 | |
DC/DC端口 | 定 |
下垂控制法 |
起始节点 | 终止节点 | 线路阻抗/ | 起始节点 | 终止节点 | 线路阻抗/ |
---|---|---|---|---|---|
1 | 2 | 0.922+j0.470 | 16 | 17 | 1.289+j1.721 |
2 | 3 | 0.493+j0.251 | 17 | 18 | 0.073+j0.574 |
3 | 4 | 0.366+j0.186 | 3 | 19 | 0.164+j0.156 |
4 | 5 | 0.381+j0.194 | 19 | 20 | 1.504+j1.355 |
5 | 6 | 0.819+j0.707 | 20 | 21 | 0.410+j0.478 |
6 | 7 | 0.187+j0.618 | 21 | 22 | 0.709+j0.937 |
7 | 8 | 1.174+j1.235 | 8 | 23 | 0.451+j0.308 |
8 | 9 | 1.030+j0.740 | 23 | 24 | 0.898+j0.709 |
9 | 10 | 1.040+j0.740 | 24 | 25 | 0.896+j0701 |
10 | 11 | 0.197+j0.065 | 25 | 26 | 0.203+j0.103 |
11 | 12 | 0.374+j0.124 | 26 | 27 | 0.284+j0.145 |
12 | 13 | 1.468+j1.155 | 27 | 28 | 1.059+j0.934 |
13 | 14 | 0.542+j0.713 | 17 | 29 | 0.804+j0.701 |
14 | 15 | 0.591+j0.526 | 29 | 30 | 0.508+j0.256 |
15 | 16 | 0.746+j0.545 |
表2 配电网阻抗参数
Tab. 2 Distribution network impedance parameters
起始节点 | 终止节点 | 线路阻抗/ | 起始节点 | 终止节点 | 线路阻抗/ |
---|---|---|---|---|---|
1 | 2 | 0.922+j0.470 | 16 | 17 | 1.289+j1.721 |
2 | 3 | 0.493+j0.251 | 17 | 18 | 0.073+j0.574 |
3 | 4 | 0.366+j0.186 | 3 | 19 | 0.164+j0.156 |
4 | 5 | 0.381+j0.194 | 19 | 20 | 1.504+j1.355 |
5 | 6 | 0.819+j0.707 | 20 | 21 | 0.410+j0.478 |
6 | 7 | 0.187+j0.618 | 21 | 22 | 0.709+j0.937 |
7 | 8 | 1.174+j1.235 | 8 | 23 | 0.451+j0.308 |
8 | 9 | 1.030+j0.740 | 23 | 24 | 0.898+j0.709 |
9 | 10 | 1.040+j0.740 | 24 | 25 | 0.896+j0701 |
10 | 11 | 0.197+j0.065 | 25 | 26 | 0.203+j0.103 |
11 | 12 | 0.374+j0.124 | 26 | 27 | 0.284+j0.145 |
12 | 13 | 1.468+j1.155 | 27 | 28 | 1.059+j0.934 |
13 | 14 | 0.542+j0.713 | 17 | 29 | 0.804+j0.701 |
14 | 15 | 0.591+j0.526 | 29 | 30 | 0.508+j0.256 |
15 | 16 | 0.746+j0.545 |
参数 | 数值 |
---|---|
电压基准/kV | 10 |
容量基准(MV⋅A) | 1 |
光伏容量/kW | 1 200 |
1 020 | |
650 | |
610 | |
2 770 |
表3 高渗透率光伏配电网参数
Tab. 3 High proportion photovoltaic distribution network parameters
参数 | 数值 |
---|---|
电压基准/kV | 10 |
容量基准(MV⋅A) | 1 |
光伏容量/kW | 1 200 |
1 020 | |
650 | |
610 | |
2 770 |
光伏输出占比/% | 最大电压/pu | 最小电压/pu | 线路平均损耗/MW | |||
---|---|---|---|---|---|---|
改进前 | 改进后 | 改进前 | 改进后 | 改进前 | 改进后 | |
0 | 1.000(1) | 1.001(6) | 0.893(18) | 0.985(13) | 0.010 7 | 0.003 9 |
50 | 1.045(30) | 1.016(6) | 0.982(24) | 0.991(13) | 0.016 1 | 0.005 0 |
100 | 1.120(30) | 1.030(6) | 1.000(1) | 1.016(13) | 0.024 4 | 0.008 5 |
表4 不同光伏输出下节点电压、线路损耗对比
Tab. 4 Comparison of node voltage and line loss at different photovoltaic outputs
光伏输出占比/% | 最大电压/pu | 最小电压/pu | 线路平均损耗/MW | |||
---|---|---|---|---|---|---|
改进前 | 改进后 | 改进前 | 改进后 | 改进前 | 改进后 | |
0 | 1.000(1) | 1.001(6) | 0.893(18) | 0.985(13) | 0.010 7 | 0.003 9 |
50 | 1.045(30) | 1.016(6) | 0.982(24) | 0.991(13) | 0.016 1 | 0.005 0 |
100 | 1.120(30) | 1.030(6) | 1.000(1) | 1.016(13) | 0.024 4 | 0.008 5 |
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