三相不平衡：是指在电力系统中三相电流（或电压）幅值不一致，且幅值差超过规定范围。
1.6三相不平衡（Unbalance three phase circuit） 由于三相负荷分配不均等，使三相负荷电流不对称，由此产生三相负序分量。
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...三相不平衡 计算误差 输出功率 输入功率 效率 负载率 [gap=360]Keywords equipment capacity, calculated load, calculated current, three-phase unbalance, calculation error, output power, input power, efficiency, load rate ..
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The existence of these nonlinear loads in power systems will result in bad power quality, such as voltage distortion, voltage fluctuation, flicker and three-phase unbalance.
这些非线性负荷的存在,往往导致电网发生电压畸变、电压波动、电压闪变和三相不平衡等电能质量问题,使电网供电质量降低、甚至恶化电网运行状况。
参考来源 - 电能质量监测与评估系统的研究与开发Voltage drops under steady state, dynamic voltage sags, three-phase imbalance andother power quality problems were compensated in experiment.
论文利用研制的样机进行了静态电压低下、动态电压暂降、系统三相不平衡等常见电能质量问题的补偿实验。
参考来源 - 基于超级电容器的统一电能质量调节器的研发·2,447,543篇论文数据，部分数据来源于NoteExpress
三相不对称负荷造成三相不平衡。
The three-phase asymmetry loads cause the three-phase imbalance.
该系统可以避免三相不平衡负载对逆变器输出电压的影响。
This system can avoid the influence that three-phase imbalance load towards the output voltage of inverter.
本文针对三相不平衡负载特点，介绍了无功功率补偿原理和单板机控制系统。
In accordance with the feature of three phase unbalanced loads, this article describes the correction principle of reactive power and the control system of single board computer.
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