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- It is widely interested how to construct an active power filter to suppress the harmonics in three phase four wire system. 三相四线制系统中如何使用有源电力滤波器来抑制线路中的谐波，这一问题越来越被人们所重视。
- This paper analyses the reason that neutral current is not zero when linear three phase system load connects to three phase four wire system source in Y connection. The resolution is also given. 分析了线性三相对称负载Y联接在对称三相四线制电源时 ;中线电流不为零的原因 ;并给出了解决的方法 .
- AC three phase four wire system with neutral earthed 中性点接地的交流三相四线系统
- three phase four wire system 三相四线制
- A new algorithm for random harmonic current detection based on ip-iq principle without phase lock loop in three phase four wire system 三相四线制任意次谐波电流的无锁相环ip-iq检测新方法
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- Main Circuit Structure Type and Control of The Active Power Filter Use For Three Phase Four Wire 三相四线制有源电力滤波器主电路的结构形式与控制
- two phase four wire system 双两相四线制
- Three phase four wire couper 三相四线耦合器
- Three phase four wire plugs 三相四线插头
- A two wire SYSTEM then requires two twisted pair, and a four wire SYSTEM requires three twisted pair. 一个二线制系统两个双绞双绞线对，一个四线制系统需要三个双绞线对。
- three phase four wire 三相四线制
- Compact, Robust, General purpose three phase four line filter with earth connections. 紧凑,功能完善,通用三相四线滤波器,带接地。
- three - phase four - wire system 三相四线
- The results of experiment and simulation indicate that harmonics,negative and zero sequence current in three phase and f our wire system could be compensated by two types of main power circuits. 实验和仿真结果表明，这两种不同形式的主电路有着各自的特点，均可对三相四线制系统中的谐波、负序及零序电流进行补偿。
- AC three phase three wire system with earthed hull as neutral wire 利用船体作为中性线回路的交流三相三线系统
- Phase four wire active power filter with one 基于单周控制的三相四线制有源电力滤波器
- three phase thousand wire system 三相千线系统
- This paper proposes a control method for the three phase three wire VSR under the unbalanced system. 三相电网不平衡时,电压会存在负序分量。
- This control method was applied to a three phase AC/DC/AC conversion system. 该控制思想在三相AC/DC/AC系统中进行了实验验证。
