| 1. | Negative sequence inverse time overcurrent protection 负序反时限过流保护装置 |
| 2. | The negative sequence current of impedance - matching balance transformer 阻抗匹配平衡变压器的负序电流 |
| 3. | Two dimensions analysis and calculation of generator negative sequence eddy current field 主动规则的终止性分析 |
| 4. | Negative sequence impedance 零序阻抗 |
| 5. | At present , the electrical railway traction load in our country has great influence on power factor , negative sequence and hypo _ harmonics 电力牵引负荷对电力系统的影响主要反映在功率因数、负序及高次谐波。 |
| 6. | At present , low power factor , abundant harmonics and negative sequence are the three main characters of electrical railway traction load 功率因数低、谐波含量大和不对称性是现代电力牵引负荷的三大技术特点。 |
| 7. | The results indicate that asvg not only can compensate reactive currents , but also can effectively filter the harmonic currents , negative sequence currents and zero sequence currents 仿真结果证明基于空间矢量调制的asvg既能够补偿不平衡系统的无功功率,同时又能够有效地滤除系统中的谐波、负序和零序等有害电流。 |
| 8. | In the second one , the input current displacement angle is dynamically modulated as a function of positive and negative sequence components of the input voltages . in both cases , the harmonic content has been evaluated analytically 第二种方法中,输入电流矢量根据输入电压正、负序成分进行动态调制,并对两种情况下的输入电流的谐波成分都进行了分析。 |
| 9. | This paper brings forward that asvg is capable of compensating harmonic , negative sequence and zero sequence currents . so asvg can synchronously compensate the reactive current and harmful currents in three - phase four - wire unbalanced system 本文提出静止无功发生器还具有抑制谐波和滤除负序、零序电流的能力,从而可以用于对三相四线制不平衡系统同时进行无功补偿和有害电流滤除。 |
| 10. | Active power filter ( apf ) is an advanced power electronic device , which can be used for compensating harmonics , reactive power and negative sequence current . compared with conventional compensation devices , active power filter has advantages of real - time and accuracy 有源电力滤波器是一种新型谐波、无功补偿装置,和传统的补偿装置相比,有源电力滤波器具有很大的优势:可以对谐波、无功以及负序电流实现实时、准确的补偿。 |