劉桂英,粟時(shí)平
(長(zhǎng)沙理工大學(xué)電氣工程與信息學(xué)院,湖南 長(zhǎng)沙 410077)
摘要:隨著測(cè)量技術(shù)進(jìn)步和電力系統(tǒng)管理水平的提高,無(wú)功電能計(jì)量理論技術(shù)得到了很大發(fā)展,一方面針對(duì)電力系統(tǒng)特性的變化提出了新的無(wú)功電能計(jì)量理論,另一方面隨著微電子技術(shù)的進(jìn)步形成了多種無(wú)功電能計(jì)量新技術(shù)。本文在闡述正弦無(wú)功功率理論與正弦無(wú)功電能計(jì)量技術(shù)的基礎(chǔ)上,介紹了非正弦無(wú)功功率理論和非正弦電能計(jì)量技術(shù),并探討了無(wú)功功率理論和無(wú)功電能計(jì)量技術(shù)的發(fā)展。
關(guān)鍵詞:無(wú)功功率;無(wú)功電能;計(jì)量;理論;移相法;變換法
中圖分類號(hào):TM933.4 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1672-4984(2006)02-0011-04
Theory and technology of reactive energy measurement and their development
LIU Gui-ying,SU Shi-ping
(School of Electric Engineering and Information,Changsha University of Science and Technology,Changsha 410077,China)
Abstract:Along with the progress of measuring techniques and increase in the management levels of power systems, the theories and techniques foe reactive energy measurement have a great development.On the one hand, some new reactive energy measurement theories are presented according to
characteristic changes of power systems. On the other hand, many advanced reactive energy measure techniques are developed with the progress of micro-electronic technologies. In this paper, after the sinusoidal reactive power theory and the sinusoidal reactive energy measuring techniques are expatiated, an emphasis was given upon the investigation of non-sinusoidal reactive power theories and nonsinusoidal reactive energy measuring techniques. Finally, the developments of reactive power theories and reactive energy measuring techniques are discussed.
Key words:Reactive power;Reactive energy;Measurement;Theory;Phase-shift method;Transformation method