Management system and method suitable for dynamically reconfiguring battery energy storage system
A battery energy storage system and battery management system technology, applied in the field of management systems, can solve problems such as short-board effect, poor control flexibility, and poor flexibility, and achieve the effect of increasing available capacity, high practical value, and improving service life
Active Publication Date: 2018-11-16
STATE GRID SHANDONG ELECTRIC POWER +2
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Problems solved by technology
[0004] (1) Short board effect and unbalanced effect, reducing the available capacity and service life of the battery pack;
[0005] (2) The method based on the equalization circuit can only perform trickle charging at a specific stage (such as the end of power battery charging) or manual intervention (such as regular manual maintenance of substation backup power supply) to maintain the battery pack;
[0006] (3) The utilization efficiency of the battery pack is low, the control flexibility is poor, and the maintenance process requires manual participation. It is difficult to adapt to the requirements of power grid energy storage applications such as the regulation of fluctuations in the output of renewable energy with complex and changeable charging and discharging methods, and peak shaving and valley filling.
[0009] (1) The charging and discharging state adjustment is mainly realized by controlling the battery interface circuit, lacking the means of interaction with the battery pack, and it is difficult to give full play to the technical advantages of the high controllability of the dynamically reconfigurable battery system
[0010] (2) The high controllability of the battery pack cannot be fully utilized, the utilization efficiency and management automation level of the battery energy storage system are low, and the energy storage system has low efficiency and poor flexibility
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[0073] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0074] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.
[0075] Explanation of terms:
[0076] PCS: Power conditioning system, power conditioning system;
[0077] BMS:...
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The invention discloses a management system and a method suitable for dynamically reconfiguring a battery energy storage system. The management system suitable for dynamically reconfiguring a batteryenergy storage system comprises an energy storage system composed of an energy storage battery pack and a power regulation system connected with the energy storage battery pack; and a battery management system respectively connected with the energy storage battery pack and a main controller; the power regulating system is also connected with the main controller. The main controller is configured to control a battery management system and a power regulation system cooperatively according to that current state of the power grid, the energy storage demand of the power grid and the current state of the energy storage battery pack, to complete the comprehensive decision of the work mode and the charging and discharging power of the energy storage battery pack, and to realize the automation of the maintenance of the energy storage battery pack.
Description
technical field [0001] The invention belongs to the field of battery energy storage, and in particular relates to a management system and method suitable for a dynamically reconfigurable battery energy storage system. Background technique [0002] With the gradual depletion of fossil energy and the increasing concern of human beings on environmental issues, clean and renewable energy power generation is rapidly expanding, and a new round of energy transformation is gradually advancing. However, renewable energy has inherent characteristics of volatility and randomness, which pose many challenges to the safe, stable, and economical operation of the power grid. Energy storage technology is an effective means to deal with the above challenges, and building a large-scale economical energy storage system is a significant research topic. In addition to pumped storage, battery energy storage is one of the most promising energy storage technologies for engineering applications at t...
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IPC IPC(8): H02J3/32
CPCH02J3/32Y02E40/10
Inventor 王飞谢红涛张新华赵光锋李沐徐健李伟张松宋士瞻王传勇张健谷守雨张恒旭李毅施啸寒
Owner STATE GRID SHANDONG ELECTRIC POWER
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