Control method and control system of microgrid system
A control method and micro-grid technology, applied in charging stations, electric vehicles, electrical components, etc., can solve problems such as the inability to achieve precise management of micro-grid systems
Active Publication Date: 2020-11-27
CHINA HUADIAN ENG +1
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[0003] In view of this, the embodiment of the present invention provides a control method and control system for a micro-grid system, which solves the problem that the existing technology cannot realize precise management of each unit of the micro-grid system, and gradually achieve intelligent dynamic management of the micro-grid system
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[0025] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0026] In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as there is no conflict with each other.
[0027] In practical applications, such as figure 1 As shown, the microgrid system includes: energy storage unit (1# energy storage and 2# energy storage), power generation unit (distributed photovoltaic and distributed wind power), charging pile unit and production power unit, each of which also includes Two...
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The invention provides a control method and a control system of a micro-grid system. The control method of a micro-grid system comprises the following steps: monitoring the running state of the micro-grid system; judging whether the microgrid system is in an abnormal state or not according to the running state; and when the microgrid system is in an abnormal state, sequentially converting the charging piles in the fast charging mode into the slow charging mode according to a preset power supply and load balance relationship and a preset grade sequence of the charging piles in the charging pileunit. The operation state of the microgrid system is monitored. According to a preset power supply and load balance relationship and a preset grade sequence of each charging pile in the charging pileunit, when the microgrid system is in an abnormal state, the charging piles in a quick charging mode are sequentially converted into a slow charging mode, so that accurate management of each unit isrealized; the load of a power grid power supply system is reduced, the power demand of a user is met, meanwhile, the operation cost is reduced, and safe and stable operation of all units of the microgrid system is guaranteed.
Description
technical field [0001] The invention relates to the field of system control, in particular to a control method and a control system for a microgrid system. Background technique [0002] With the current continuous growth of energy demand, energy cost restricts the survival and development of enterprises. How to use the advanced means of "multi-energy complementarity and source-network-load coordination" to maximize the benefits under the premise of safe energy supply in the park, the existing There are problems of on-site consumption, grid loss and off-grid power supply loss of distribution lines; with the application of energy storage and energy in regional distribution networks, grid power supply, regional / distributed power generation, and energy storage are gradually formed. The regional micro-grid structure composed of power distribution, power consumption, etc. can meet the needs of independent operation in the micro-grid system with the support of the power supply circ...
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IPC IPC(8): H02J3/46H02J3/24B60L53/63B60L53/66
CPCH02J3/46H02J3/24B60L53/63B60L53/66H02J2300/22H02J2300/28Y02T10/70Y02T10/7072Y02T90/12Y02T90/16
Inventor 刘军红李艳红王兴兴李俊飞叶骏贾天翼
Owner CHINA HUADIAN ENG