抽水蓄能机组在超前功率因数试验中的最大超前相位运行能力分析  

Analysis of maximum advanced phase operation capability of pumped-storage unit in advanced power factor test

作　　者：朱伟 王皓 Zhu Wei;Wang Hao(State Power Investment Corporation Chongqing Jiangkou Hydropower Co.,Ltd.,Chongqing 404100,China;School of Electronic Information,Xi′an Polytechnic University,Xi′an 710048,China)

机构地区：[1]国家电投集团重庆江口水电有限责任公司,重庆404100 [2]西安工程大学电子信息学院,西安710048

出　　处：《国外电子测量技术》2021年第7期65-69,共5页Foreign Electronic Measurement Technology

摘　　要：为了改善抽水蓄能机组最大超前相位运行能力评估的准确性,提出了一种考虑功率角、定子电流和终端电压三个限制因素的计算方法。首先,在发电和抽水的工作状况下,分析了最大超前相位运行能力,并研究了变压器抽头位置对最大超前相位运行能力的影响。其次,以一台300 MW抽水蓄能机组为例,实例分析了最大超前相位运行能力的Q-PV三维表面与系统电压和有功功率的变化规律。最后,在典型工作状况下,验证了理论计算结果与实际检测数据基本吻合,从而证明了所提方法的正确性和实用性。In order to improve the accuracy of the evaluation of the maximum advanced phase operation capability of the pumped storage unit, this paper proposes a calculation method that considers the three limiting factors of power angle, stator current and terminal voltage. First, under the working conditions of power generation and pumping, the maximum advanced phase operating capacity is analyzed, and the influence of the transformer tap position on the maximum advanced phase operating capacity is studied. Secondly, taking a 300 MW pumped-storage unit as an example, the variation law of the Q-PV three-dimensional surface with the maximum advanced phase operation capability and the system voltage and active power is analyzed. Finally, under typical working conditions, it is verified that the theoretical calculation results are basically consistent with the actual test data, which proves the correctness and practicability of the proposed method.

关 键 词：抽水蓄能机组 最大超前相位运行能力 功率角 变压器抽头 Q-PV三维表面 

分 类 号：TM6[电气工程—电力系统及自动化]