摘要
电气化铁路的快速发展给电网带来广泛影响,采用交直交传动方式的新型高速电力机车的投运使电铁负荷对电网的影响呈现出新的特点。在分析了CRH2C型电力机车的机车模型和工作原理的基础上,结合现场实际测试数据,分别从谐波、负序与不平衡、电压波动等方面研究了300km/h高速客运专线对电网电能质量的影响。与传统的交直型电力机车不同,广泛采用CRH系列交流机车的高速客运专线存在高次谐波电流频谱丰富、负序影响大等特点。针对高速客运专线负荷特点及其对电网的影响,对目前常用的几种电能质量治理措施进行了分析,并给出了相应的治理建议。
The rapid development of electrified railway network has exerted broad effect on the electrical network. The running of new high speed electric locomotives which use AC-DC-AC type of drive system makes the influence of the electric railway load on the electrical network present new features. With the actual tests data in substation, this paper researches the impact of 350 km/h high-speed passenger line on the grid power quality respectively from harmonics, negative sequence and unbalance, voltage fluctuation, etc on the basis of analyzing of CRH2C electric locomotive model and the work principle. Different from traditional AC-DC electric locomotive, high-speed passenger line which widely uses CRH AC electric locomotive has the characteristics such as rich high harmonic current frequency spectrum and remarkable negative sequence influence. In addition, in view of high-speed passenger line load characteristic and its impact on the grid, this paper analyzes several commonly used power quality control measures at present and gives corresponding recommendations.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2011年第22期78-82,89,共6页
Power System Protection and Control
基金
国家电网公司'电铁集中接入地区电能质量监测系统示范工程'科技项目资助
关键词
高速客运专线
CRH2C
电能质量
谐波
三相不平衡
high speed passenger transportation special line
CRH2C
power quality harmonic three-phase unbalance
