新乡豫新发电厂高压变频器节能分析

降低厂用电率，降低发电成本，提高上网电能的竞争力，已成为各火电厂努力追求的经济目标。近几年电网的负荷峰谷差越来越大，频繁的调峰任务使部分辅机仍然运行在工频状态下，造成大量电能流失。本文着重介绍了高压变频器的工作原理及实际运行情况的详细节能分析，使我们对其节能效果以及典型风机水泵节能计算有了更进一步认识。因此得出高压变频调速技术的日趋成熟，在电力系统中广泛应用及节能效果明显的结论。

Energy Saving Analysis of High-voltage Inverter in Xin Xiang Yu Xin Power Plant

To lower factory power consuming rate, power generation costs and enhance the competitiveness of the grid power is becoming economic goals that power plants pursue. In recent years the grid load peak-valley gap has been growing bigger. Frequent peak adjusting tasks made some of auxiliary machines still operating in line frequency state, causing heavy loss of power. This paper highlights high voltage inverter principle and detailed analysis of energy-saving in practical operation, brings us a further awareness of energy-saving effect and typical calculation of fan and pump energy saving. Therefore the conclusion is made that high-voltage VWF technology matures and has been widely used in power system with obvious energy-saving effect.