含分布式电源配电网继电保护定值核校方法

The Constant Value Check Method Containning Distrihuted Power⁃supply Distribution Relay Protection

由于分布式电源接入的配电网架构复杂,导致传统继电保护定值在线校核方法效率较低,严重威胁配电网运行安全,本文提出含分布式电源配电网继电保护定值核校方法。通过计算继电保护重要度获取保护定值核校顺序和识别含分布式电源配电网运行方式要素使核校方法准确切换至对应定值区,基于整定逆过程在线核校继电保护定值。仿真实验结果表明:本文所提定值核校方法可以有效抑制继电波波形变化,波长极大值与理想数据的差值为0.48μm,说明该方法可有效保护配电网继电波定值传输能力。

As the distribution network frame of the distributed power⁃supply insertion is complex,lead to lower effi⁃ciency of the constant on⁃line check mothed of trditional relay protection,which seriously imperils the distribution network safety running.Put of orward the constant value check method containing distributed power⁃supply distribu⁃tion relay protection,By calculating relay protection importance,achieve protective constant value check sequence.By distinguishing the essential factors of the distributed power⁃supply distribution network running way,make the check mothed correctly change to corresponding constant value region,the constant value of on⁃line check relay pro⁃tection based on setting inverse process.The artificial experiment result shows that the constant value check method in the paper can efficiently contral relay waveform changes.The D⁃value of wavelength maximum value and ideal da⁃ta is 0.48μm,which shows the method can efficiently protect the constant transmission ability of the distribution network relay wave.