DOI:https://doi.org/10.1007/s40565-018-0401-9 |
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Penetrating power characteristics of half-wavelength AC transmission in point-to-grid system |
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Net amount: 720 |
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Author:
Hanqing LIANG1, Yadong LIU1, Lei WAN2, Gehao SHENG1, Xiuchen JIANG1
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Author Affiliation:
1. Department of Electrical Engineering, Shanghai Jiao Tong
University, Shanghai 200240, China
2. Global Energy Interconnection Development and
Cooperation Organization, Beijing 100031, China
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Foundation: |
This work was supported by National Natural Science Foundation of China (No. 51307109) and State Grid Corporation of China (No. XT71-16-001). The authors would also thank for the technique support of China Electric Power Research Institute. |
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Abstract: |
With the concept of global energy interconnection
being proposed, half-wavelength alternating current
transmission (HWACT) technology becomes of more
interest. HWACT lines can be adopted to establish a pointto-grid
system, in which the penetrating power (PP) is
produced between receiving terminals, having a significant
effect on the power flow distribution. In order to investigate
this phenomenon, the PP characteristics of the HWACT
system are researched in this paper. First, the mathematical
relationship between the transmission power and terminal
bus voltages of a single HWACT line is derived using the
equations of a distributed parameter model. The research
indicates that the relationship between power and terminal
voltages shows ‘‘reverse characteristics’’ opposite to those
of regular short transmission lines. Then, the concept and
definition of PP in a point-to-grid system with two
receiving terminals are proposed, and the corresponding
relationship between PP and the terminal bus voltages is
derived. Simulations are carried out to validate the theory
under different conditions, so that the accuracy and adaptiveness
of the theoretical analysis can be proved. In
addition, the results demonstrate that selecting the location
for a HWACT system has demanding requirements in order
to control the value of PP. |
Keywords: |
Half-wavelength alternating current
transmission (HWACT), Ultra-high voltage, Synchronous
power grids, Penetrating power (PP) |
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Online Time:2019/01/28 |
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