Coordinated control device and method for low-voltage microgrid
A coordinated control, low-voltage micro-grid technology, applied in the direction of circuit devices, AC network circuits, AC network load balancing, etc., to achieve good comprehensive benefits
Active Publication Date: 2019-04-02
SUZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER
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Problems solved by technology
However, there is no automatic device that can consider the comprehensive benefits of the entire system, automatically identify the economic use mode, and propose different grid-connected use combinations
Method used
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Embodiment 1
[0017] Example 1: as attached figure 1 As shown, a low-voltage microgrid coordination control device for realizing the grid-connected load of each input power supply in the low-voltage microgrid and coordinating the control of the input and output modes is connected with each input power supply and the load, wherein each input power supply includes The commercial power supply provided by the grid, the at least one distributed power supply provided by at least one distributed power generation device, and the energy storage power supply provided by the energy storage device, the low-voltage microgrid coordination control device is connected with the grid terminal bus bar to obtain Mains power supply, distributed power generation devices include wind power devices, photovoltaic devices or other devices, and energy storage devices can both store energy and supply power. The output of the low-voltage micro-grid coordination control device is connected to an electric load bus, so as...
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The invention relates to a low-voltage microgrid coordination control device which comprises a controller, a first input-output module, a second input-output module, a third input-output module, a plurality of first switch devices and a plurality of second switches. The first input-output module is connected with a power grid, the second input-output module is connected with a distributed power generation device, the third input-output module is connected with an energy storing device, the first input-output module and the second input-output module are connected with the third input-output module respectively, the first input-output module, the second input-output module and the third input-output module are connected with a load respectively, and the controller is connected with the first switch devices and the second switch devices. The low-voltage microgrid coordination control device can realize synchronization of input power sources in a low-voltage microgrid and connection with the load, can realize coordination control on various input-output modes and has good comprehensive benefit.
Description
technical field [0001] The invention belongs to the field of micro-grids including distributed power generation devices, and in particular relates to a low-voltage micro-grid coordinated control device which realizes the grid-connected load of each input power source in the low-voltage micro-grid and coordinates the input and output modes and a coordinated control device adopted by the device. method. Background technique [0002] With the rapid use of distributed new energy, it will become more and more common to use distributed photovoltaic power generation devices and distributed wind power generation devices at the same time in the same family or enterprise, and even energy storage equipment will be added. After many types of distributed energy and energy storage equipment are connected to the grid, how to use the new energy connected to the grid more economically will inevitably attract more and more attention from users. However, there is no automatic device that can ...
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IPC IPC(8): H02J3/38H02J3/28
CPCH02J3/28H02J3/381
Inventor 戴康胡海安李富鹏张纳川吴亮高萍孔志坚
Owner SUZHOU POWER SUPPLY OF JIANGSU ELECTRIC POWER