CN212811304U - Energy storage inverter with FFR data access function - Google Patents
Energy storage inverter with FFR data access function Download PDFInfo
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- CN212811304U CN212811304U CN202021508171.2U CN202021508171U CN212811304U CN 212811304 U CN212811304 U CN 212811304U CN 202021508171 U CN202021508171 U CN 202021508171U CN 212811304 U CN212811304 U CN 212811304U
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Abstract
The utility model relates to the technical field of energy storage systems, in particular to an energy storage inverter with FFR data access function, which comprises a data processor and a frequency response acquisition module, wherein the frequency response acquisition module comprises a main control chip, a data memory, a clock module and a communication module, and the data memory, the clock module and the communication module are all connected with the main control chip; the frequency response acquisition module is connected with the data processor through the communication module to receive data; the communication module receives the data and stores the time stamps corresponding to the data into the data memory through the frequency response acquisition module. The utility model discloses have and conveniently inquire historical response record through the timestamp to be convenient for examine, perhaps the effect of capability test and pursuit to energy storage inverter.
Description
Technical Field
The utility model belongs to the technical field of energy storage system's technique and specifically relates to an energy storage inverter who contains FFR data access function is related to.
Background
With the development of economy, population increase, and the scarcity of fossil energy, each country has come to pay attention to the development of renewable energy. However, the development of new energy sources such as wind energy, solar energy and the like is not influenced by conditions such as geographical positions, climates and the like, so that the wind energy and the solar energy have strong intermittence, energy storage becomes a very reasonable solution for the maximum utilization of the wind energy and the solar energy, and at present, although various energy storage technologies have advantages and disadvantages, the energy storage is predicted to become an effective measure for solving the conflict between energy generation and load along with the development of the technology.
The existing energy storage technical scheme comprises two relatively critical parts: an energy storage battery section and an energy storage inverter section. The battery functions to store energy and the inverter is the device used to connect the battery to the grid, which allows current, voltage and power regulation.
As shown in fig. 1, the frequency response of the energy storage inverter is shown in that when the grid frequency is high, the inverter absorbs the power of the grid, and when the grid frequency is low, the inverter releases the power to the grid to assist the grid in stabilizing.
(if the frequency trigger falls below or exceeds the protection point, the hybrid inverter will shut down;
as a local mode of the hybrid inverter;
4 frequency set points account for:
and (B) point A: FFR access grid end point (maximum access power)
And B, point: FFR feed grid trigger points
And C, point: FFR consumption of grid trigger points
And D, point: FFR consumption (maximum power consumption) at the grid end
Description of 3 frequency regions:
a wire inlet area: and delivering positive power to the power grid to meet the FFR low-frequency response. If the solar energy is sufficient for the household load, the battery is charged and the internet is connected, and the rest solar energy can be injected into the power grid.
A self-use area: the frequency is in a normal range, the hybrid inverter EMS adopts a self-use scheduling mode, and consumes the energy of the power grid.
The power utilization area is as follows: and negative electricity is supplied to the power grid, namely, the electric energy of the power grid is absorbed to meet the FFR high-frequency response. If the solar energy is sufficient for domestic use, the battery is charged. The battery is charged preferentially, and then the solar power generation amount is reduced to meet the power consumption demand of the user.
The energy storage inverter needs to be checked at ordinary times, but relevant data cannot be collected, and the energy storage system cannot be evaluated correctly.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an energy storage inverter who contains FFR data access function, it has the historical response record of convenient inquiry, the accurate effect of evaluating energy storage inverter of being convenient for.
The above object of the present invention is achieved by the following technical solutions:
an energy storage inverter with an FFR data access function comprises a data processor and a frequency response acquisition module, wherein the frequency response acquisition module comprises a main control chip, a data memory, a clock module and a communication module,
the data memory, the clock module and the communication module are all connected with the main control chip;
the frequency response acquisition module is connected with the data processor through the communication module to receive data;
the communication module receives the data and stores the time stamps corresponding to the data into the data memory through the frequency response acquisition module.
By adopting the technical scheme, the data processor receives the voltage, the frequency and other data of the power grid to process, and feeds the data back to the energy storage inverter, the power grid frequency is responded through the energy storage inverter, the power grid is adjusted, the power grid is stabilized, meanwhile, the data processor transmits the collected power grid voltage, the power grid frequency and the inverter output power to the frequency response collection module through the communication module, the frequency response collection module simultaneously stores each frame of data and the corresponding timestamp into the data storage, the external server can also access the data in the data storage through the communication module, so that the energy storage inverter is examined, or the performance test and the tracking are carried out.
The present invention may be further configured in a preferred embodiment as: the main control chip is an MCU.
The present invention may be further configured in a preferred embodiment as: the data memory is an SD card.
The present invention may be further configured in a preferred embodiment as: the communication module comprises two RS485 interfaces, one RS485 interface is connected with the data processor, and the other RS485 interface is connected with the external server.
The present invention may be further configured in a preferred embodiment as: the data received by the communication module comprises the grid voltage, the grid frequency and the output power of the inverter.
The present invention may be further configured in a preferred embodiment as: the data processor is a DSP.
To sum up, the utility model discloses a following at least one useful technological effect: historical response records are conveniently inquired through the timestamp, so that the energy storage inverter is conveniently examined or tested and tracked in performance.
Drawings
FIG. 1 is a background art schematic;
fig. 2 is a system block diagram of the energy storage inverter of the embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
referring to fig. 1 and 2, for the utility model discloses an energy storage inverter who contains FFR data access function, including data processor and frequency response collection module.
The data processor adopts a DSP, receives data such as voltage and frequency of a power grid for processing, feeds the data back to the energy storage inverter, responds to the power grid frequency through the energy storage inverter, adjusts the power grid according to the adjustment requirement in the background technology, and assists the power grid to be stable.
The frequency response acquisition module comprises a main control chip, a data memory, a clock module and a communication module, wherein the clock module adopts an RTC (real time clock) to generate a timestamp, the main control chip adopts an MCU (microprogrammed control unit), the data memory adopts an SD (secure digital) card, the communication module comprises two RS485 interfaces, one RS485 interface is connected with a data processor, the data such as the output power of a power grid voltage, the power grid frequency and an inverter are received, and each frame of data is simultaneously stored in the data memory by the frequency response acquisition module together with the corresponding timestamp.
The other RS485 interface is connected with an external server, so that a user can conveniently inquire historical response records through a timestamp, and the energy storage inverter can be conveniently checked or subjected to performance test and tracking.
The implementation principle of the embodiment is as follows: the data processor receives and processes data such as voltage and frequency of a power grid, feeds the data back to the energy storage inverter, responds to the power grid frequency through the energy storage inverter, adjusts the power grid, assists the power grid to be stable, simultaneously, the data processor transmits the collected power grid voltage, the collected power grid frequency and the inverter output power to the frequency response collection module through the communication module, the frequency response collection module simultaneously stores each frame of data and a corresponding timestamp into the data storage, an external server can access the data in the data storage through the communication module to check the energy storage inverter, or performance test and tracking are carried out.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (6)
1. An energy storage inverter with FFR data access function, characterized in that: comprises a data processor and a frequency response acquisition module, wherein the frequency response acquisition module comprises a main control chip, a data memory, a clock module and a communication module,
the data memory, the clock module and the communication module are all connected with the main control chip;
the frequency response acquisition module is connected with the data processor through the communication module to receive data;
the communication module receives the data and stores the time stamps corresponding to the data into the data memory through the frequency response acquisition module.
2. The energy storage inverter with FFR data access function as claimed in claim 1, wherein: the main control chip is an MCU.
3. The energy storage inverter with FFR data access function as claimed in claim 1, wherein: the data memory is an SD card.
4. The energy storage inverter with FFR data access function as claimed in claim 1, wherein: the communication module comprises two RS485 interfaces, one RS485 interface is connected with the data processor, and the other RS485 interface is connected with the external server.
5. The energy storage inverter with FFR data access function as claimed in claim 1, wherein: the data received by the communication module comprises the grid voltage, the grid frequency and the output power of the inverter.
6. The energy storage inverter with FFR data access function as claimed in claim 1, wherein: the data processor is a DSP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021508171.2U CN212811304U (en) | 2020-07-27 | 2020-07-27 | Energy storage inverter with FFR data access function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021508171.2U CN212811304U (en) | 2020-07-27 | 2020-07-27 | Energy storage inverter with FFR data access function |
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| CN212811304U true CN212811304U (en) | 2021-03-26 |
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| CN202021508171.2U Active CN212811304U (en) | 2020-07-27 | 2020-07-27 | Energy storage inverter with FFR data access function |
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- 2020-07-27 CN CN202021508171.2U patent/CN212811304U/en active Active
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