At present, distribution network's performance more and more is taken by the electric power department, many province electric power industry company starts to carry on urban, the countryside distribution network's transformation. Because the system idle work is big to the voltage influence, reactive power insufficiency or oversized, will cause the systemic voltage remarkable drop or the rise, thus causes the very serious electrical energy losses and the waste; Simultaneously causes public changes the low pressure side circuit loses in a big way. Therefore, after public transformer carries on the reactive power compensation, raises the power supply level, to reduce the reactive loss, is present carries on the power compensation to the electrical network the main method. This design is proposes based on above reason. its method is, withdraws in electrical network's electric current and the voltage, its reshaping is the square-wave, sends in examines the electric circuit, surveys relations which and power factor between them the phase differential value and lags in advance, carries on the comparison the phase difference and the setting value, if the phase difference outside field, parallel or excises the electric power electric capacity on the electrical network, carries on the reactive power compensation. , this design II to develop the platform with MAX+Plus, applies the VHDL hardware description language or the schematic diagram input, the hardware uses the CPLD component. Finally completes one to have on the above function piece the system.
分给我吧,翻译真的很累!!!
At present, the distribution network of more and more attention to the electricity sector, many companies in the power industry have begun to carry out urban, rural transformation of the distribution network. As the reactive system voltage high-impact, the lack of reactive power or too large, will cause the system voltage drop or rise significantly, resulting in a very serious loss and waste of electricity at the same time lead to the common variable loss of low pressure side of the line. Therefore, after a transformer in common reactive power compensation in order to enhance the level of electricity supply, reduce the loss of reactive power, is the power grid for the main method of compensation. The design is based on the above reasons.
Their approach is to extract power grid in the current and voltage, for its plastic square, into the detection circuit, to measure the phase difference between their value and the relationship between the lead and lag and the power factor, the phase difference and set value , If the phase out of range, in parallel, the Internet or the removal of power capacitors for reactive power compensation. This design with MAX + Plus II for the development of platforms, applications VHDL HDL or schematic entry, the hardware used CPLD devices. Finally completed more than a function of the system on a chip.
语法不对。