UC知道请哪位高手帮我翻译一段文章！~！谢谢哈
来源：百度知道 编辑：UC知道 时间：2024/06/06 18:05:24
目前，配电网的性能越来越被电力部门重视，许多省电力工业公司均都开始进行城市、农村配电网的改造。由于系统无功对电压影响大，无功功率的不足或过大，将引起系统电压的显著下降或上升，从而造成十分严重的电能损失和浪费；同时导致公用变低压侧线路损耗大。因此，在公用变压器后进行无功功率补偿，以提高供电水平、降低无功损耗，是目前对电网进行功率补偿的主要方法。本设计就是基于上述原因提出的。
其方法是，提取电网中的电流和电压，将其整形为方波，送入检测电路，测量出它们之间的相位差值和超前滞后的关系及功率因数，把相位差与设定值进行比较，若相位差超出范围，则在电网上并联或切除电力电容，进行无功功率补偿。，此设计用MAX+Plus II为开发平台，应用VHDL硬件描述语言或原理图输入，硬件采用CPLD器件。最后完成一个具有以上功能的片上系统。
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,