光伏逆变器的VDE-AR-N 4105标准测试包含哪些内容?
推荐回答(2个)
由于近年来德国分布式发电,特别是光伏发电的装机容量迅速增加,分布式发电系统对电网的稳定性和电能质量的影响日益增大。为了保证电网的稳定性和电能质量,VDE-AR-N 4105更新了分布式发电系统的低压并网的接入规则并提出了新的技术要求。主要如下:
快速电压波动 (5.4.2 Rapid voltage changes)
电压闪烁 (5.4.3 Flicker)
谐波与间谐波 (5.4.4 Hamonics and Interhamonics)
换向缺口 (5.4.6 Communication notches)
中央音频纹波控制 (5.4.7 Audio-frequency centralized ripple-control
并网准则 (5.5 Connection criteria)
三相网络 (5.6 Three-phase network)
最大短路电流 (5.7.2 Maximum permissible short-circuit current)
有功输出 (5.7.3 Active power output)
无功(5.7.5 Reactive power)
通用要求 (6.1 General requirement)
保护开关 (6.4 interface switch)
保护开关的保护装置 (6.5 protective device for the interface switch)
连接条件与同步 (8.3 Connection conditions and synchronization)
使用(致远电子功率分析仪)搭配其PAManager软件可以进行自动化测试,目前支持的项目包括:
1) 有功功率调节精度测试。
2) 三相不平衡测试。
3) 过频测试。
4) 特征曲线控制无功输出测试。
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