The connection mode and operation mode of energy storage device on the side of 0.4kv distribution network
A technology of energy storage devices and operation modes, applied in circuit devices, electrical components, emergency power supply arrangements, etc., can solve the problems of single application function, no one is relatively safe and stable, and few energy storage devices, etc. Simple and convenient effects
Active Publication Date: 2017-06-06
STATE GRID CORP OF CHINA +3
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Since the development of energy storage devices is still in its infancy at home and abroad, energy storage devices are still in the demonstration operation stage at home and abroad, and have not yet been widely promoted. There are even fewer energy storage devices, and their application functions are single. Smooth new energy, but there is not yet a relatively safe and stable mature solution for energy storage devices to simultaneously achieve high-reliability guaranteed power supply and seasonal load applications
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0016] The access point solution of the present invention, such as figure 1 As shown: terminal 1 is used for mains access; terminal 2 is used for emergency power supply to provide user load access for power supply protection; terminal 3 is for energy storage device connection. Circuit breaker 1 is used to control the disconnection and disconnection of user loads; the solid-state switch / contactor, controlled by the converter of the energy storage device, can realize fast switching between on-grid and off-grid; circuit breaker 2 is to It is a manual function added to ensure the continuous power supply of user loads, and the switch is in the off state during normal operation.
[0017] The connection mode of the present invention is: one terminal of the relay 1 is connected to the electric load; the other terminal of the relay 1 is connected to th...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides an access mode of an energy storage device on a 0.4KV power distribution network side. The access mode relates to the energy storage device and a 0.4KV power distribution network, wherein a main loop of the energy storage device comprises a bidirectional converter; the access mode is characterized by also comprising a first breaker, a second breaker and a switch, wherein a connecting terminal of the first breaker is connected with an electric load; another connecting terminal of the first relay is connected with output of the bidirectional converter of the energy storage device; a connecting terminal of the second relay is connected with the 0.4KV power distribution network side; another connecting terminal of the second relay is connected with the other connecting terminal of the first relay; a connecting terminal of the switch is connected with the first connecting terminal of the second relay; another connecting terminal of the switch is connected with the other connecting terminal of the first relay. The invention also provides an operation mode of the energy storage device on the 0.4KV power distribution network side. According to the energy storage device, high-reliability power supply guarantee and seasonal load application can be simultaneously realized.
Description
technical field [0001] The invention relates to the connection mode and the operation mode of the energy storage device and the power grid, especially the connection mode and the operation mode of the energy storage device at the side of the 0.4KV distribution network. Background technique [0002] With the development of energy storage technology, the high integration of energy storage batteries, converters and supporting equipment makes it possible to realize the compactness and mobility of hundreds of kilowatt-level energy storage devices. The integrated design of the whole vehicle makes the energy storage device It can be moved quickly and easily, so that the energy storage device can be used in various applications on the distribution network side. [0003] Since the development of energy storage devices is still in its infancy at home and abroad, energy storage devices are still in the demonstration operation stage at home and abroad, and have not yet been widely promo...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/28H02J9/06
CPCH02J3/28H02J9/06
Inventor 郑高陈彬
Owner STATE GRID CORP OF CHINA