| 引用本文: | 刘赟静,卢利中,杨 政,等.考虑低电压条件下电压质量敏感设备损失的配电网预防性经济运行优化[J].电力系统保护与控制,2026,54(04):75-88.[点击复制] |
| LIU Yunjing,LU Lizhong,YANG Zheng,et al.Preventive economic operation optimization of distribution networks considering the losses of power quality-sensitive equipment under low voltage conditions[J].Power System Protection and Control,2026,54(04):75-88[点击复制] |
|
| 摘要: |
| 随着先进制造业领域电压质量敏感型设备的大规模接入,当前规程允许的配电网短时带故障运行机制与敏感负荷电压耐受特性之间的矛盾日益凸显。为此,研究敏感设备在配电系统带故障运行的低电压工况预防性经济优化具有重要意义。首先,基于对称分量法量化了变频调速器(adjustable speed driver, ASD)的停运判据。其次,构建了一个考虑ASD与可编程逻辑控制器(programmable logic controller, PLC)等敏感设备损失的配电网运行成本优化模型。最后,在Simulink中搭建了ASD并网系统,以验证ASD停运条件的正确性。在改进的IEEE13节点系统中,综合考虑工业园区的负荷需求响应行为、ASD和PLC等敏感设备是否配置储能装置以及是否配备不间断电源(uninterruptible power supply, UPS)系统3类典型场景,验证了预防优化模型的正确性与有效性。 |
| 关键词: 电能质量 电压暂降 电压敏感设备 经济运行优化 |
| DOI:10.19783/j.cnki.pspc.250184 |
| 投稿时间:2025-02-25修订日期:2025-06-09 |
| 基金项目:国家自然科学基金项目资助(52377080);国网吉林省电力有限公司吉林供电公司科技项目资助(2023JBGS-02) |
|
| Preventive economic operation optimization of distribution networks considering the losses of power quality-sensitive equipment under low voltage conditions |
| LIU Yunjing1,2,LU Lizhong2,YANG Zheng1,LI Zaifeng2,GUO Tiebin2,LIU Dawei2,JIANG Wei2 |
| (1. Northeast Electric Power University, Jilin 132012, China; 2. State Grid Jilin Electric
Power Supply Co., Ltd., Jilin 132000, China) |
| Abstract: |
| With the large-scale integration of power quality-sensitive equipment in advanced manufacturing sectors, the conflict between the currently permitted short-term fault-tolerant operation of distribution networks and the voltage tolerance characteristics of sensitive loads has become increasingly prominent. Therefore, studying preventive economic optimization of sensitive equipment under low-voltage conditions during faulted operation of distribution systems, while accounting for losses of sensitive equipment, is of great significance. First, based on the symmetrical components method, the tripping criteria for adjustable speed drivers (ASDs) are quantified. Second, an operation cost optimization model for distribution networks is established, which incorporates the loss of sensitive equipment such as ASDs and programmable logic controllers (PLCs). Finally, a grid-connected ASD system is built in Simulink to verify the correctness of the ASD tripping conditions. Using a modified IEEE13-node system, three typical scenarios are comprehensively considered, namely, demand response behavior of industrial park loads, whether sensitive equipment such as ASDs and PLCs are equipped with energy storage devices, and whether uninterruptible power supply (UPS) systems are installed. These scenarios validate the accuracy and effectiveness of the proposed preventive optimization model. |
| Key words: power quality voltage dip voltage-sensitive equipment economic operation optimization |