Mobile shelter monitoring system and battery energy storage system charge and discharge control method
A technology of battery energy storage system and monitoring system, applied in flexible AC transmission system, AC network voltage adjustment, AC network load balancing, etc., can solve the problems of expanding the working range of line voltage regulator and low voltage at the end of distribution network, etc. Achieve reliable operation, solve the effect of low voltage, and expand the working range
Active Publication Date: 2015-08-19
WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST +2
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to provide a mobile shelter monitoring system and a battery energy storage system charging and discharging control method. voltage regulator and battery energy storage system, thereby expanding the working range of the line voltage regulator and effectively solving the problem of low voltage at the end of the distribution network
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[0024] The following describes the technical solutions in the embodiments of the present invention clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0025] In the following description, many specific details are explained in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the connotation of the present invention. Similar promotion, therefore, the present invention is not limited by the specific embodiments disclosed below.
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The invention discloses a mobile shelter monitoring system and a battery energy storage system charge and discharge control method. The mobile shelter monitoring system is used for controlling an on-load tap switch of a line voltage regulator through monitoring a bus voltage at the output side, so as to change a no-load voltage ratio of an auto-transformer to realize line on-load automatic voltage regulation and improve a voltage of the tail end of a power distribution network. Meanwhile, the mobile shelter monitoring system is used for monitoring a battery energy storage state, controlling discharge when a battery energy storage system is in a peak load state and charge when the battery energy storage system is in a valley load state, and coordinating operation energy consumption of an energy storage bidirectional converter and the battery energy storage system, so that the safe, stable and reliable operation of the battery energy storage system is ensured on one hand, and the efficiency of the battery energy storage system is improved on the other hand. According to the monitoring system, joint control of the line voltage regulator and the battery energy storage system is realized, the advantage of the battery energy storage system is fully developed, the working range of the line voltage regulator is enlarged, and the problem of overlow voltage of the tail end of the power distribution network is effectively solved.
Description
Technical field [0001] The invention relates to the technical field of voltage management devices or methods, and in particular to a mobile shelter monitoring system and a battery energy storage system charging and discharging control method. Background technique [0002] In recent years, with the rapid development of my country's economy, higher and higher requirements have been placed on the power supply capacity and power supply quality of the distribution network. However, due to the excessively long power supply radius of some distribution network lines, under heavy load conditions, the line voltage is too low and it is difficult to meet the requirements of power supply quality. [0003] Traditional distribution network transformation measures mainly include upgrading or building new substation transformers, transmission and distribution lines, etc. However, the cost of transformation of the distribution network is relatively high. When the load peak-valley difference is large...
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Login to view more IPC IPC(8): H02J3/12H02J3/32
CPCY02E40/10
Inventor 李爱魁王伟姜国义刘海波肖冰刘飞
Owner WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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