Qingping Wang, Zhiqian Bo, Xiaowei Ma, 等. Integrated protection based on multifrequencydomain information for UHVhalf-wavelength AC transmission line[J]. 现代电力系统保护与控制(英文), 2016,1(2).
Qingping Wang, Zhiqian Bo, Xiaowei Ma, et al. Integrated protection based on multifrequencydomain information for UHVhalf-wavelength AC transmission line[J]. Protection and Control of Modern Power Systems, 2016, 1(2).
Qingping Wang, Zhiqian Bo, Xiaowei Ma, 等. Integrated protection based on multifrequencydomain information for UHVhalf-wavelength AC transmission line[J]. 现代电力系统保护与控制(英文), 2016,1(2).DOI: 10.1186/s41601-016-0027-8.
Qingping Wang, Zhiqian Bo, Xiaowei Ma, et al. Integrated protection based on multifrequencydomain information for UHVhalf-wavelength AC transmission line[J]. Protection and Control of Modern Power Systems, 2016, 1(2).DOI: 10.1186/s41601-016-0027-8.
Integrated protection based on multifrequencydomain information for UHVhalf-wavelength AC transmission line
Half-wavelength AC Transmission (HWACT) can improve capability of AC transmission significantly. According to the basic principle of HWACT
the electromagnetic transient model of HWACT is built to analyze the fault transient process of transmission line. Based on fault characteristics of HWACT
the adaptability of traditional protections for transmission lines is analyzed briefly
such as current differential protection
distance protection and over current protection. In order to solve the problems of conventional protection caused by HWACT
a novel integrated protection based on multi-frequency domain information is proposed in this paper
which uses both the power frequency information and transient information. The integrated protection based on multi-frequency domain information takes advantages of power frequency and transient protections
which can not only improve the performance of traditional protection of AC transmission line but also realize fast fault judgment by transient travelling wave protection.
Abstract
Half-wavelength AC Transmission (HWACT) can improve capability of AC transmission significantly. According to the basic principle of HWACT
the electromagnetic transient model of HWACT is built to analyze the fault transient process of transmission line. Based on fault characteristics of HWACT
the adaptability of traditional protections for transmission lines is analyzed briefly
such as current differential protection
distance protection and over current protection. In order to solve the problems of conventional protection caused by HWACT
a novel integrated protection based on multi-frequency domain information is proposed in this paper
which uses both the power frequency information and transient information. The integrated protection based on multi-frequency domain information takes advantages of power frequency and transient protections
which can not only improve the performance of traditional protection of AC transmission line but also realize fast fault judgment by transient travelling wave protection.