Title:
SYMMETRY METHOD FOR OBTAINING GRID LOSS POWER COMPONENT OF POWER SUPPLY LOAD IN ALTERNATING CURRENT POWER GRID
Document Type and Number:
WIPO Patent Application WO/2020/154847
Kind Code:
A1
Abstract:
A symmetry method for obtaining a grid loss power component of a power supply load in an alternating current power grid: firstly establishing a linear expression of a node power supply load power with respect to a node translation voltage and a node voltage phase according to the node power supply load power and branch admittance in the alternating current power grid; then on this basis, establishing a linear symmetric model of a steady state of the alternating current power grid; subsequently establishing a linear symmetric matrix expression of a whole-grid node translation voltage and the node voltage phase with respect to a whole-grid node power supply load power by using an M-P inverse matrix; then establishing a symmetric algebraic expression of the grid loss power with respect to the whole-grid node power supply load power according to the linear symmetric matrix expression; and finally establishing a symmetric algebraic formula for obtaining the grid loss power component of the power supply load by using a Shapley value theorem, thereby achieving obtaining the grid loss power component of the power supply load in the alternating current power grid. According to the grid loss power component of the power supply load, a new efficient and accurate tool is provided for calculating the grid loss and guaranteeing the operating economy in the dispatching of the alternating current power grid.
Inventors:
JIANG HUI (CN)
PENG JIANCHUN (CN)
LIU YITAO (CN)
PENG JIANCHUN (CN)
LIU YITAO (CN)
Application Number:
PCT/CN2019/073440
Publication Date:
August 06, 2020
Filing Date:
January 28, 2019
Export Citation:
Assignee:
UNIV SHENZHEN (CN)
International Classes:
H02J3/00
Foreign References:
| CN104995810A | 2015-10-21 | |||
| CN104319772A | 2015-01-28 | |||
| CN103956733A | 2014-07-30 | |||
| CN102403724A | 2012-04-04 | |||
| US20090008993A1 | 2009-01-08 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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