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Container energy storage joint operation system and method

A technology for operating systems and containers, applied in the field of container energy storage combined operating systems, can solve problems such as unbalanced load, unbalanced battery capacity, unbalanced battery system power, etc., to achieve the effect of system flexibility and improved economic benefits

Pending Publication Date: 2018-07-03
JIANGSU RICHPOWER NEW ENERGY TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, each region has its own container energy storage system, which are independent of each other, the load between them is unbalanced, and the battery capacity is also unbalanced.
This creates a problem: if there is a problem with the PCS in one or several container energy storage systems, or the power of the battery system is unbalanced or the

Method used

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  • Container energy storage joint operation system and method

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Example Embodiment

[0025] In the container energy storage combined operation system of this embodiment, the parallel control of the DC side is based on the occurrence of a power conversion system (PCS) failure in one or several container energy storage terminals, unbalanced energy storage units (batteries), and unbalanced loads (such as : The electricity of the a cell is not enough, the load is large, and the electric capacity of the b cell cannot be used up) and other reasons, the container energy storage terminal cannot be fully utilized in time. The joint operation system is used to accurately and stably control each container energy storage terminal, balance the supply load, make full use of each container energy storage terminal, balance charge and discharge, reduce plant losses, and improve economic benefits.

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodimen...

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Abstract

The present application discloses a container energy storage joint operation system and method. The system comprises a plurality of energy storage terminals, and each of the energy storage terminals comprises an energy management system, a first power conversion system, a second power conversion system and an energy storage unit. The energy management system is communicably connected to the firstpower conversion system and the second power conversion system, respectively, wherein the DC side of the first power conversion system is respectively connected to the energy storage unit and the DC side of the second power conversion system. The energy storage unit at least comprises a storage battery, wherein each AC side of the second power conversion systems is respectively connected to a common AC grid through a circuit breaker, and the energy management systems of all the energy storage terminals are in communication connection. The system of the invention can realize balanced charging and discharging and uniform load on a plurality of container energy storage terminals, thereby making the system more flexible and more convenient, and improving economic benefits.

Description

technical field [0001] The present application relates to the technical field of smart grid, in particular to a container energy storage joint operation system and method. Background technique [0002] At present, when domestic container energy storage systems are integrated into the grid, they are mostly integrated into the national grid, and the AC and DC power conversion and power flow control are realized through the bidirectional converter, and the step-up transformer (400V / 10kV ) into the 10kV grid. However, each region has its own container energy storage system, which are independent of each other, and the load between them is unbalanced, and the capacity of the battery is also unbalanced. This creates a problem: if there is a problem with the PCS in one or several container energy storage systems, or the power of the battery system is unbalanced or the load is unbalanced (for example: the electricity in a cell is not enough, the load is heavy, and the capacity of b...

Claims

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Application Information

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IPC IPC(8): H02J15/00H02J3/32H02J7/00
CPCH02J3/32H02J7/0019H02J7/0068H02J15/00
Inventor 葛厚艺韩竞科
Owner JIANGSU RICHPOWER NEW ENERGY TECH
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