Microgrid control device of photovoltaic distributed power supply
A distributed power supply and control device technology, applied in photovoltaic power generation, energy storage, energy industry, etc., can solve the problems of output power fluctuation, high cost, and inability to provide backup energy, etc., and achieve the effect of smooth switching and improved efficiency
Inactive Publication Date: 2014-09-24
QINGDAO CHUANGMING NEW ENERGY RESOURCES
View PDF0 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] With the power shortage and increasingly serious environmental pollution caused by energy shortages, clean energy such as solar energy and wind energy has been promoted and used in recent years, and its positive effects on environmental protection and energy conservation have also attracted increasing attention. Distributed power generation generally refers to the power generation (energy supply) method that arranges relatively small power generation devices near the load site or users. The distributed power generation is flexible, decentralized, clean, environmentally friendly, and reproducible. Power demand and resource distribution have slowed down the huge investment required for the upgrading of transmission and distribution networks. At the same time, mutual backup with the large power grid has also improved the reliability of power supply. At present, although many solar and wind energy products are put into use , but due to the influence of its own structure and characteristics, it still has some shortcomings and technical defects, such as intermittent power supply leading to output power fluctuations, unschedulable operation of the grid, failure to provide backup energy, high cost, etc., For this reason, people need a kind of new technical solution that can produce, to solve the existing problem at present, the purpose of the technical solution of the present invention is exactly the new technical solution proposed in order to solve the existing problem at present
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
[0021] see figure 1
[0022] The housing 15 is provided with an energy storage device control device 9, a maximum power point tracking control device 10, a power measurement device 11, a parameter preset device 12, a PID calculation device 13, a PWM modulation device 14, and a circuit 16. The circuit 16 can communicate with the external The equipment is connected, and the inside of the casing 15 is connected by a circuit 16 .
[0023] Among them, the energy storage control device 9 can charge and discharge the battery pack, and quickly respond to the power demand of the load. The maximum power point tracking control device 10 can collect the current and voltage output by the photovoltaic battery from the current and voltage sensor, and find out The maximum power point of the photovoltaic cell, the power measurement device 11 can use the load point voltage collected by the sensor and the output current of the inverter to calculate the active power and reactive power output by ...
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 relates to a microgrid control device of a photovoltaic distributed power supply. The microgrid control device of the photovoltaic distributed power supply is composed of an energy storage device control device, a maximum power point tracking control device, a power measurement device, a parameter presetting device, a PID arithmetic device, a PWM device, a circuit and a shell, wherein the energy storage device control device, the maximum power point tracking control device, the power measurement device, the parameter presetting device, the PID arithmetic device, the PWM device and the circuit are arranged in the shell. By means of the microgrid control device of the photovoltaic distributed power supply, bidirectional energy flow between a power grid and the energy storage device control device can be achieved, and an islanding working mode and a grid-connected working mode can be switched over automatically and smoothly, so that higher power supply quality and higher power supply efficiency are guaranteed.
Description
technical field [0001] The invention relates to a micro-grid control device, in particular to a device capable of realizing bidirectional energy flow between the power grid and an energy storage device, and automatic smooth switching between island and grid-connected operating modes, so as to ensure higher power supply quality and A micro-grid control device for a photovoltaic distributed power supply that improves greater power supply efficiency belongs to the application field of new energy technologies. technical background [0002] With the power shortage and increasingly serious environmental pollution caused by energy shortages, clean energy such as solar energy and wind energy has been promoted and used in recent years, and its positive effects on environmental protection and energy conservation have also attracted increasing attention. Distributed power generation generally refers to the power generation (energy supply) method that arranges relatively small power gen...
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 & AuthorityApplications(China)
IPC IPC(8): H02J3/38H02J3/32
CPCY02E70/30Y02E10/58Y02E10/563Y02E10/566Y02E10/56Y02P80/14
Inventor王忠峰桑瑞芳
OwnerQINGDAO CHUANGMING NEW ENERGY RESOURCES