自动有载调压新型控制策略的研究

Research on the New Control Strategy of Automatic Load Regulation

随着电力行业的不断发展,由于电能的清洁高效,已经成为了主要的能量来源。随着生产和生活的进步,对于电力供应的要求也越来越高。衡量电能的指标有电压、频率以及波形三个方面。电压作为三项指标中的重要一项,在电能变换的过程中需严格的关注。对于终端变压器,因为负载经常变化,需要根据实际的情况进行分接头的调整来调整变压器的输出电压。为了保障供电的不间断,从之前的空载调压,变成有载调压,再到后来的自动有载调压。传统的有载调压存在只检测变压器输出电压,没有更深层次的检测和计算,在调整分接头位置时并不能很好保障性能。基于这种情况,研发了一种新型的电压变压器有载调压控制策略,在原有基础上,加入了环流电流大小检测、馈线参数技术以及无功功率部分计算等三个方面的功能,实现了更加智能化的电力变压器有载调压控制。

with the continuous development of the power industry,because of the clean and efficient power,it has become the main source of energy.With the development of production and life,the demand for power supply is also getting higher and higher.There are three aspects of measuring electric energy:voltage,frequency and waveform.As an important part of the three indexes,voltage must be strictly observed in the process of power transformation.For the terminal transformer,because of the frequent change of load,it is necessary to adjust the tap voltage according to the actual situation to adjust the output voltage of the transformer.In order to protect the power supply continuously,the original no-load voltage regulation has become an on load voltage regulation,and then to the automatic load regulation.But the traditional load regulating pressure only detects the output voltage of the transformer,and has no deeper detection and calculation.It can not ensure the performance when adjusting the position of the taps.In this case,a new voltage transformer voltage regulation control strategy is developed.On the basis of the original,three functions,such as the measurement of the circulation current size,the feeder parameter technology and the calculation of the reactive power part,have been added to realize the more intelligent load voltage control control of the power transformer.