本文主要致力于无输出隔离变压器的逆变器并联系统环流特性及其并联控制技术的研究。
This dissertation is mainly devoted to the analysis of circulating current's characteristics and the control technologies of parallel inverter system without output isolating transformers.
对于无输出隔离变压器的逆变器并联系统，各模块输出电压直流分量不一致会在模块间产生较大的直流环流。
For the parallel inverter system without output isolation transformers, the difference of DC components of the output voltage can cause large DC loop-current among modular inverters.
对于无输出隔离变压器的逆变器并联系统，各模块输出电压直流分量不一致会在模块间产生较大的直流环流。
For a parallel inverter system without output isolating transformers, discrepancy in DC biases contained in the output voltage of each module can cause large DC circulating current among inverters.
这种电路的每一支路中的元件，除一般电路元件外，还可能包括功率开关晶体管、二极管或隔离变压器的一个绕组。
Each of the converter circuit branches may contain a power switching transistor, a diode or a winding of an isolated transformer in addition to general circuit components.
场地分控箱供电禁止直接从泵站相线上搭接，如果需要从泵房供电，必须安装隔离变压器和隔离线路，因为场地分控箱处于雷电的威胁下。
The power supply of sub-control box is forbid to link directly from pump phase line, if needs to supplied from pump house, the isolate transformer and isolate line should be build up.
手车有断路器手车、电压互感器手车、电压互感器避雷器手车、所有变压器手车、隔离手车及接地手车七种。
There are circuit breaker handcart, voltage transformer handcart, voltage transformer arrester handcart, all transformers handcart, isolation and earthing trolley hand trolley.
灯具泄漏电流测试线路中隔离测试变压器次级接地问题直接影响着测试结果的准确性。
The earthing of secondary circuit of an isolating test transformer on the circuit for luminaire leakage current test strongly influences the accuracy of test results.
将交付电力变压器，发电机电路断路器的修正和证明，隔离相位总线管，以及支持电厂的项目工作。
ABB's technology will be used to transmit electricity reliably and safely from the plant's power generators to Sweden's 400-kilovolt (kV) grid. The project is scheduled for completion in mid-2008.
将交付电力变压器，发电机电路断路器的修正和证明，隔离相位总线管，以及支持电厂的项目工作。
ABB's technology will be used to transmit electricity reliably and safely from the plant's power generators to Sweden's 400-kilovolt (kV) grid. The project is scheduled for completion in mid-2008.
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