| Condensate pump is one of the important auxiliary equipment, power plant energy consumption of electricity in the whole factory occupies an important share. Power generation in the load change is significant, but when generating unit load changes, but keep the rated speed of the condensate pump running, rely on regulating valve opening to adjust the size of the water, the throttling loss is big, motor consumes a lot of electricity.At present, the frequency control of motor speed technology, has been widely used in low voltage motor speed transmission, with the improvement of the progress of technology, manufacturing technology, high power high voltage frequency conversion governor production technology has been gradually mature, also is gradually applied in all fields.This paper is aimed at 200 WMM Dou He power plant unit condensate pump motor inverter technology as the research object, discussed the results of the study in many ways one by one. Respectively in this paper, the principle of the frequency converter basic structure in detail, based on the related technologies in different countries as the research object, combined with own work DouHe power plants, some of condensate pump frequency conversion technology reform put forward the detailed solution and research direction. Cite relevant data proved that frequency conversion technology in the practical application of condensate pump and other equipment facilities, can effectively reduce energy consumption, improve energy utilization.Successful transformation of frequency conversion technology of the condensate pump DouHe power plants for other auxiliary equipment or other thermal power plant in energy efficiency and reduce energy losses are provided a lot of effective practical experience. |
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