哪位大侠能帮我翻译成英文，毕业论文要用，急啊~~多谢各位了,不要机器翻译啊

Question

3讨论和建议
通过比较分析，可以看到：不同的初值设置条件、不同的计算方法，其短路电流计算结果将 有明显的区别。应该说，基于潮流的短路电流计算结论是最为精确的。只要保证所有的发电机全部运行、系 统全接线运行，基于潮流的短路电流计算，其等值阻抗是能反映系统在最大运行方式下的等 值阻抗的。除所有计算方法中的共同参数要求外，影响故障点等值阻抗值的因素主要有：变 压器变比、并联补偿、线路充电电容等，其中，变压器的变比和并联补偿影响相对较小，而 线路充电电容影响较大。
但问题是：(1)基于潮流的短路电流计算，全系统的所有故障点的短路前电压并不能保证是 系统可能的最高运行电压。潮流中发电机的实际功率因素也不一定能反映发电机的最大负载 情况。而这两点是影响故障端口等值电压源计算的主要因素。(2)计算最大短路电流时，需 所有发电机均运行，而为保证电力系统的可靠性，系统的发电机总是冗余的、有备用的，所 以，这对潮流计算是一个巨大的挑战。为此，建议采取以下的方法进行电网三相短路电流计算。
① 以全接线潮流文件为基础，在潮流计算中应包括所有发电机，未运行的机组以零出力机 组表示。
② 计算此方式下的短路电流，更确切地说，是计算此方式下，系统各节点的等值阻抗，这 一等值阻抗是系统各节点最小等值阻抗的真实反映。
③ 根据系统每一节点可能的最高运行电压水平，计算各节点的最大短路电流。根据等值电 压源法，短路电流值为节点电压除以等值阻抗。
4结语
短路电流计算是电力系统计算分析中很重要的一项计算内容，其计算结果对电力系统的安全 稳定经济运行有着重要的意义。通过分析国内常用的一些计算方法，可以发现：经典计算方 法所得的短路电流计算结果偏小，有可能给系统埋下不安全的隐患；IEC方法与基于潮流的 短路电流结果相差较小，但不同区域的偏差各不相同，也并不一定能反映系统的最大短路电 流水平。若换一个思路，改计算节点的最大短路电流为计算其最小等值阻抗，则系统的最小 等值阻抗是易于求取的，且能符合系统实际的。在此基础上，根据各节点的最大可能运行电 压，去求得该节点的最大短路电流水平，应该是最能反映系统可能的最大短路电流水平的可行方法。
参考文献
〔1〕电力系统计算〔M〕.水利电力出版社，1978.
〔2〕GB/T 15544-1995“三相交流系统短路电流计算”

Answer 1

绝对我自己的翻译，我就读墨尔本大学，因为水平是可信的。。。

3 discuss and Suggestions
Through the comparative analysis, we can see different initial conditions, and the calculation method of different, its short-circuit current calculation results will have obvious difference. Should say, based on the trend of short-circuit current calculation results are the most accurate. As long as all the generator all run, system based on the wiring, tide of short-circuit current calculation, which can reflect the equivalent impedance is the largest system in operation of the impedance values. Besides all the common parameter calculation method, affect the fault of equivalent impedance values are the major factors: the pressure is changed, the parallel compensation, line than charging capacitance, etc, which are the transformer and parallel compensation effect is relatively small, while charging circuit. Capacitance
But the problem is: (1) based on the trend of short-circuit current calculation, the whole system of short-circuit fault before all voltage doesn't guarantee is the maximum operating voltage system may be. In the tide of generator power factor can not actually reflect the maximum load. Generators, And this is the impact equivalent voltage source fault port calculation of main factors. (2) maximum short-circuit current calculation, and all are running for generator power system reliability, the system of redundancy, generators, always have a spare, with the tide, the calculation is a huge challenge. Therefore, it is advisable to take the following method for grid three-phase short-circuit current calculation.
In the whole wiring tide files based on calculation of tide, should include the whole operation units, generator with zero output machine group said.
2 this way of calculating under short-circuit current, more specifically, is calculated under the way, each node of the system, the equivalent impedance equivalent impedance is system of each node minimum equivalent impedance reality.
3 each node may according to the system of the highest level of operating voltage, each node of the biggest short-circuit current. According to the law, the equivalent electric pressure source short-circuit current equivalent impedance voltage divided for node.
4 epilogue:
Short circuit calculation and analysis is power system meter.with is an important content of a calculation, the calculation results of the power system security and stability is of great significance to the economic operation. Through the analysis of some commonly-used calculation method, we can find that the classic method of calculating square short-circuit current calculation results of small, may give system buried unsafe. Based on the method of IEC short-circuit current trends are small, but the result of the deviation in different areas varied, also does not necessarily reflect the maximum short-circuit flow level. If a thought, the biggest short-circuit current calculation node for calculating the minimum equivalent impedance, the system is easy to calculating the minimum equivalent impedance, and can meet the practical system. On this basis, the largest possible according to each node, electric pressure to run the node's biggest short-circuit current level, should be the most can reflect the largest possible system short-circuit current level of feasible method.
References
(1) [M] power systems computation. Water power press, 1978.
[2] GB/T 15544-1995 "three-phase short-circuit current calculation communication system."