By comparing the heating effect of an unknown AC signal to that from a known DC reference, metrologists can determine the RMS AC quantity (voltage or current) in terms of the DC quantity.
为了对比一个已知直流参考的未知交流信号热效应，计量人员可以确定在一段时间内直流的交流有效值(电压或电流)。
By digital simulation, the Ac carried wave system and its equivalent Dc system are checked and the feasibility of Dc method equivalent to the Ac carrier wave system is verified.
通过数字仿真，比较了交流载波系统和其等效直流系统，验证了交流载波系统等效直流方法的可行性。
The problem of oversimplification and improper selection of DC model, which exists in the DC modeling when AC and DC systems interact in AC/DC hybrid power system, is discussed.
讨论了目前研究交、直流混合电网交直流系统相互作用时在直流建模上存在的模型过度简化及模型选用不恰当的问题；
The single AC power input voltage frequency, the internal AC to DC after; DC converter rectifier exchange conversion, self-produced - very stable, pure sine wave.
该电源输入单一交流电压和频率，内部经过交流对直流；直流对交流的变流整流转换后，自行产生-非常稳定纯净的正弦波。
The current controller on the HVDC line can do AC/DC parallel tie-line local control or improve the stability of AC/DC hybrid power systems.
直流功率调制器可以对交直流联络线进行局部控制或改善交直流混合系统的运行特性。
The paper presents a method to determine equivalent DC impedance and equivalent AC impedance of HVDC converter viewed respectively from DC side and AC side based on switching function theory.
文中提出了基于开关函数理论的HVDC换流器直流等值阻抗和交流等值阻抗计算方法。
The improved AC/DC comparator consists of a self balancing DC comparator and an electronically compensated AC transformer.
这种新型电流比较仪实际上包含了自平衡直流比较仪和电子补偿式交流电流互感器的所有功能。
AC network with DC network are also combined in a AC-DC iterative power flow calculation program through the detailed model of 24-pulse bridge rectifier.
通过对24脉波换流站进行精确建模，将换流站两侧的直流网络和交流网络联系起来，运用交直流潮流迭代计算的方法计算地铁供电网络的潮流分布。
AC network with DC network are also combined in a AC-DC iterative power flow calculation program through the detailed model of 24-pulse bridge rectifier.
通过对24脉波换流站进行精确建模，将换流站两侧的直流网络和交流网络联系起来，运用交直流潮流迭代计算的方法计算地铁供电网络的潮流分布。
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