| 主动配电网的自适应正序电流保护 |
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| 引用本文： | 胡洛铖 1,杨仁增 2,李鑫海 1. 主动配电网的自适应正序电流保护[J]. 机械与电子, 2022, 0(12): 3-8 |
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| 作者姓名： | 胡洛铖 1 杨仁增 2 李鑫海 1 |
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| 作者单位： | 1. 贵州大学电气工程学院,贵州 贵阳 550025 ; 2. 贵州理工学院大数据学院,贵州 贵阳 550003 |
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| 摘 要： | 根据故障发生后正序电气分量之间的关系,结合已有的传统电流保护和 IBDG 控制策略,提出了一种自适应正序电流保护方案,有效解决了 IBDG 并网保护误动、拒动和选择性的问题。利用 PSCAD 仿真软件构建了一个含双 IBDG 的 10 kV 配电网模型,利用该模型在 IBDG 并网或离网的情况下输出短路故障时各保护的保护定值和正序短路电流值,来验证该方案的可行性。
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| 关 键 词： | 逆变型分布式电源 低电压穿越 自适应电流保护 配电网 正序电流 定值 |
Adaptive Positive Sequence Current Protection in Active Distribution Network |
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| HU Luocheng,YANG Renzeng,LI Xinhai. Adaptive Positive Sequence Current Protection in Active Distribution Network[J]. Machinery & Electronics, 2022, 0(12): 3-8 |
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| Authors: | HU Luocheng YANG Renzeng LI Xinhai |
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| Affiliation: | ( 1.School of Electrical Engineering , Guizhou University , Guiyang 550025 , China ; 2.College of Big Data , Guizhou Institute of Technology , Guiyang 550003 , China ) |
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| Abstract: | According to the relationship between the positive sequence electrical components after the fault occurs , combined with the existing traditional current protection and IBDG control strategy , an adaptive positive sequence current protection scheme is proposed , which effectively solves the problems of misoperation , rejection and selectivity of IBDG grid-connected protection.The PSCAD simulation software is used to build a 10 kV distribution network model with dual IBDG , and the model is used to output the protection fixed value and positive sequence short circuit current value of each protection when IBDG is connected or off the grid to verify the feasibility of the scheme. |
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| Keywords: | inverter distributed power supply low voltage ride-through adaptive current protection distribution network positive sequence current fixed value |
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