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Switchable electric energy storage system and using method thereof

An electric energy storage system and power supply system technology, applied in the field of energy storage, can solve the problems of limited stored energy, high system requirements, and high unit cost, and achieve the effect of reducing operating costs and wide application prospects.

Active Publication Date: 2015-04-29
NANTONG QIANGSHENG PHOTOVOLATIC TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the internal control system of the existing power energy storage system has high requirements, and the electrical control circuit is complicated. Most of them are designed as a management unit to control an energy storage unit, resulting in high unit cost, limited and fast use of stored electric energy, and low operating efficiency. Satisfy the power load demand and other issues

Method used

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  • Switchable electric energy storage system and using method thereof
  • Switchable electric energy storage system and using method thereof
  • Switchable electric energy storage system and using method thereof

Examples

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Embodiment Construction

[0031] Such as figure 1 As shown, a switchable electric energy storage system 1 includes:

[0032] A plurality of energy storage units 11, connected in parallel, wherein each of the energy storage units includes a plurality of parallel battery clusters 111; each of the battery clusters includes a plurality of series-connected batteries 1111;

[0033] A charging unit 12, connected with the power supply system;

[0034] A converter unit 13, used to convert the alternating current output by the power supply system into direct current and store it in the battery 1111, and convert the direct current in the battery 1111 into alternating current for use by electric loads;

[0035] A switching unit 14, connected to the energy storage unit 11 and the conversion unit 13, for receiving a control instruction and connecting or disconnecting the corresponding energy storage unit 11 according to the control instruction;

[0036] A management unit 15, connected with the plurality of energy ...

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Abstract

A switchable electric energy storage system comprises a plurality of energy storage units which are connected in parallel, a charging unit, a current converting unit, a switching unit and a managing unit, wherein each energy storage unit comprises a plurality of battery clusters which are connected in parallel; the charging unit is connected with a power supply system; the current converting unit is used for converting the alternating current output by the power supply system into the direct current to be stored in the battery clusters and converting the direct current in the battery clusters into the alternating current for an electrical load to use; the switching unit corresponds to the energy storage units respectively and is connected with the charging unit; the managing unit is connected with the plurality of energy storage units and the switching unit and used for managing all the energy storage units and sending a control command to the switching unit.

Description

technical field [0001] The invention relates to the field of energy storage, in particular to a switchable electric energy storage system and a method for using the same. Background technique [0002] Large-scale thermal and hydroelectric power plants all generate electricity in a balanced manner, while factories and other power loads mainly use electric energy during the day, and most household users use electric energy in the first half of the night, resulting in a low utilization rate of power generated by power plants at night. Use less electricity until the early hours of the morning. How to make full use of the electricity generated by power plants at night is a problem that government departments and enterprises have been trying to solve. Currently, electric energy storage systems are one way to solve this problem. The power energy storage system not only meets the demand for power peak regulation, but also improves the operating efficiency of the power plant and gr...

Claims

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Application Information

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IPC IPC(8): H02J15/00H02J3/32H02J7/00
Inventor 沙嫣沙晓林
Owner NANTONG QIANGSHENG PHOTOVOLATIC TECH
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