A method for optimal configuration of power distribution terminals
A technology for power distribution terminals and optimized configuration, applied in circuit devices, electrical components, AC network circuits, etc., which can solve the problems of huge investment, high terminal cost, and insufficient economy.
Active Publication Date: 2020-09-04
STATE GRID TIANJIN ELECTRIC POWER +1
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Problems solved by technology
[0007] Specifically, if each ring main unit and column-mounted switch is equipped with power distribution terminals, it will lead to huge investment; if some monitoring objects are selected and all of them are equipped with "three remote" power distribution terminals, not only the terminal cost is high , it is necessary to install electric operating mechanisms on a large number of switches and equip them with "three remote" channels (usually optical fibers), which is also not economical, and it is not conducive to large-scale promotion and improvement of coverage
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[0053] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:
[0054] The present invention first establishes an optimal configuration model of the "three remote" terminals considering the reliability and economy of power supply, and analyzes the optimization strategy for the installation quantity and location selection of the "three remote" power distribution terminals based on reliability and economy; secondly, proposes Based on the distribution terminal observability optimization configuration method with considerable branch power, and on this basis, the m-1 robust measurement optimization configuration method is studied, which further improves the measurement observability; finally, a comprehensive consideration of reliability and observability is proposed. Based on the optimal allocation process of power distribution terminals based on reliability, reliability, and economy, an optimal configuration method ...
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The invention relates to a power distribution terminal optimized configuration method. The power distribution terminal optimized configuration method is technically characterized by comprising the following steps of, firstly, establishing a three-remote terminal optimized configuration model taking power supply reliability and economy into consideration and performing reliability and economy three-remote power distribution terminal configuration on a power distribution network; secondly, establishing a power distribution terminal observability optimized configuration model based on branch power observability, and performing observability power distribution terminal optimized configuration on the power distribution network; thirdly, establishing an m-1 robust measurement optimized configuration model, and performing m-1 robust measurement optimized configuration on the power distribution network; fourthly, performing power distribution terminal optimized configuration on the power distribution network, and performing reliability, observability and economy index computation. The power distribution terminal optimized configuration method achieves in-depth study on installation type, number and position of power distribution automation terminals, performs observability analysis on configuration of power distribution terminals on the basis of ensuring power supply reliability, achieves observability of the power distribution network and reduces the risks of unobservability of the power distribution network.
Description
technical field [0001] The invention belongs to the technical field of power distribution system measurement terminal configuration, in particular to a power distribution terminal optimal configuration method. Background technique [0002] As the country's strategy of "building a unified and strong smart grid" continues to deepen, the construction and transformation of smart distribution networks will also face major challenges. In the future, the smart distribution network will not only undertake the task of reasonably and stably distributing electric energy in the traditional distribution network, but also realize the real-time perception and observation of the grid state and the reliable and flexible control of the operation mode. The construction of smart distribution network involves many technical fields, among which accurate state estimation is the basis of smart distribution network research, and the observability of power system is a prerequisite for state estimatio...
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IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 戚艳王旭东于建成吴磊霍现旭丁一李国栋王守相董逸超
Owner STATE GRID TIANJIN ELECTRIC POWER