CN-121984127-A - Energy coordination control method based on virtual power plant and related equipment

CN121984127ACN 121984127 ACN121984127 ACN 121984127ACN-121984127-A

Abstract

The application discloses an energy coordination control method based on a virtual power plant and related equipment, and relates to the technical field of virtual power plants, wherein the method comprises the steps of obtaining the current running state of a target distributed energy unit, a power grid physical state signal and first coordination information from at least one adjacent distributed energy unit in a preset communication topology; the method comprises the steps of determining a power adjustment amount based on a current running state, a power grid physical state signal and first coordination information, adjusting power of a target distributed energy unit based on the power adjustment amount to obtain an adjustment result, and synchronizing second coordination information to an adjacent distributed energy unit based on the adjustment result to enable the adjacent distributed energy unit to perform power adjustment according to the second coordination information. According to the application, through introducing bidirectional coordination information interaction between distributed energy units in the communication topology, self-adaptive cooperative adjustment is realized, and the coordination, stability and adjustment effectiveness of the overall operation of the virtual power plant can be improved.

Inventors

QIN XINFENG
YANG QING
LI LIANG
SHEN LINZHI

Assignees

湖南江河能源科技股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260126

Claims (10)

1. An energy coordination control method based on a virtual power plant, which is applied to a target distributed energy unit in the virtual power plant, the method comprising: Acquiring the current running state of the target distributed energy unit, a power grid physical state signal and first coordination information from at least one adjacent distributed energy unit in a preset communication topology, wherein the first coordination information comprises adequacy information representing the margin of power generation capacity and/or emergency degree information representing the emergency degree of power consumption requirements; Determining a power adjustment amount based on the current operating state, the grid physical state signal, and the first coordination information; based on the power adjustment amount, performing power adjustment on the target distributed energy unit to obtain an adjustment result; And based on the adjustment result, synchronizing second coordination information to the adjacent distributed energy units so that the adjacent distributed energy units perform power adjustment according to the second coordination information.
2. The method of claim 1, wherein the grid physical state signal includes grid fundamental frequency and at least one power harmonic component information, wherein the determining a power adjustment based on the current operating state, the grid physical state signal, and the first coordination information comprises: performing spectrum analysis on the power harmonic component information to determine dominant harmonic type and amplitude; Generating a harmonic suppression weight factor based on the dominant harmonic type and amplitude; The power adjustment amount is determined based on the current operating state, the grid fundamental frequency, the first coordination information, and the harmonic suppression weight factor.
3. The method of claim 2, wherein the determining the power adjustment based on the current operating state, the grid fundamental frequency, the first coordination information, and the harmonic suppression weight factor comprises: Determining the information credibility weight corresponding to each adjacent distributed energy unit according to the historical consistency of the first coordination information; Based on the information credibility weight, carrying out weighted fusion on the received first coordination information to obtain comprehensive neighbor state evaluation; And inputting the current running state, the grid fundamental frequency, the harmonic suppression weight factor and the comprehensive neighbor state evaluation into a preset distributed reinforcement learning model, and outputting to obtain the power adjustment quantity, wherein a reward function of the preset distributed reinforcement learning model characterizes local benefit, local grid state improvement degree and cooperation degree with neighbor actions.
4. The method of claim 1, wherein the obtaining the current operating state of the target distributed energy unit, the grid physical state signal, and the first coordination information from at least one neighboring distributed energy unit within a preset communication topology comprises: acquiring the current running state of the target distributed energy unit; Determining a target signal type set to be acquired according to the equipment type and the power output mode of the target distributed energy unit; acquiring data based on the target signal type set to obtain the power grid physical state signal, and evaluating the data quality score of the acquired signal; Determining a target time window for information exchange according to the data quality score and the real-time transmission delay of the preset communication topology; And in the target time window, performing at least one coordination information interaction with the at least one adjacent distributed energy unit to receive the information subset with the highest association degree with the current running state as the first coordination information.
5. The method of claim 4, wherein the determining a target time window for information exchange based on the data quality score and a real-time transmission delay of the preset communication topology comprises: If the data quality score is lower than a preset quality threshold and the real-time transmission delay is higher than a preset delay threshold, determining that the current state is in a weak communication-low quality perception state; Responding to the weak communication-low quality perception state, and starting a local prediction model based on historical operation data of the target distributed energy unit to generate a prediction complement value of the first coordination information, wherein the local prediction model is obtained by training based on a coordination information interaction sequence of the target distributed energy unit and each adjacent unit in a historical normal communication state; And extending the target time window by a preset extension time length, and reconstructing the target time window to obtain the complete first coordination information based on the received partial first coordination information and the prediction completion value.
6. The method of claim 1, wherein synchronizing second coordination information to the neighboring distributed energy units based on the adjustment results comprises: Updating the adequacy information or the urgency information of the target distributed energy unit according to the adjustment result; Determining that the synchronization policy mode of the second coordination information is a fast broadcast mode or a precise orientation negotiation mode based on the adjustment result, wherein the adjustment result comprises a response speed of power adjustment and an improvement degree score of the power grid physical state signal; If the synchronization policy mode is the fast broadcast mode, broadcasting second coordination information containing the adjustment result and the adequacy information or the urgency information to all adjacent units in the preset communication topology with the highest communication priority; if the synchronization policy mode is the accurate orientation negotiation mode, identifying at least one preset neighbor unit with higher contribution to the current adjustment in the previous coordination period based on the first coordination information, and establishing a temporary point-to-point communication link with the preset neighbor unit, wherein interaction comprises adjustment process data and second coordination information of the adequacy information or the urgency information.
7. The method of claim 6, wherein the determining, based on the adjustment result, that the synchronization policy mode of the second coordination information is a fast broadcast mode or a precise orientation negotiation mode comprises: Quantifying the response speed of the power adjustment to obtain a first quantized value, and quantifying the improvement degree score to obtain a second quantized value; If the first quantized value is greater than or equal to a preset first threshold value and the second quantized value is greater than or equal to a preset second threshold value, determining that the synchronization policy mode is the fast broadcast mode; Otherwise, determining the synchronization policy mode as the accurate orientation negotiation mode.
8. An energy coordination control device based on a virtual power plant, characterized in that the device is applied to a target distributed energy unit in the virtual power plant, and comprises: the data acquisition unit is used for acquiring the current running state of the target distributed energy unit, a power grid physical state signal and first coordination information from at least one adjacent distributed energy unit in a preset communication topology, wherein the first coordination information comprises adequacy information representing the margin of the power generation capacity and/or emergency degree information representing the emergency degree of the power consumption requirement; an adjustment determining unit configured to determine a power adjustment amount based on the current operation state, the grid physical state signal, and the first coordination information; The power adjustment unit is used for carrying out power adjustment on the target distributed energy unit based on the power adjustment quantity to obtain an adjustment result; and the information synchronization unit is used for synchronizing second coordination information to the adjacent distributed energy units based on the adjustment result so that the adjacent distributed energy units perform power adjustment according to the second coordination information.
9. An electronic device comprising a memory and a processor, wherein the processor is configured to implement the steps of the virtual power plant-based energy coordination control method of any one of claims 1 to 7 when executing a computer program stored in the memory.
10. A computer readable storage medium having stored thereon computer executable instructions or a computer program, which when executed by a processor, implements the steps of the virtual power plant based energy coordination control method according to any of claims 1 to 7.

Description

Energy coordination control method based on virtual power plant and related equipment Technical Field The application relates to the technical field of virtual power plants, in particular to an energy coordination control method based on a virtual power plant and related equipment. Background Along with the rapid development of new energy technology and smart power grids, a virtual power plant is an important technical form for carrying out aggregation management and unified scheduling on distributed energy, and gradually becomes a key means for improving the flexibility and the digestion capacity of a power system. However, in the actual operation process, the number of distributed energy units in the virtual power plant is numerous and various, and the operation state, the physical state of the power grid and the influence relationship among the distributed energy units all show highly dynamic and complex characteristics. In the related art, power adjustment of the distributed energy units is often focused on the running state of the units or an upper scheduling instruction, and comprehensive consideration of the power generation capacity margin and the power consumption requirement emergency degree of the adjacent distributed energy units is lacked, so that relatively independent adjustment behaviors of the distributed energy units are easy to form in the power adjustment process, and running requirement change of peripheral units is difficult to reflect in time. That is, the related art has the technical problems of insufficient power regulation cooperativity, insufficient information interaction and unsatisfactory overall coordination control effect of the distributed energy units in the virtual power plant. Disclosure of Invention In the summary of the application, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description section. The summary of the application is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter. According to the energy coordination control method and the related equipment based on the virtual power plant, provided by the application, the two-way coordination information interaction among the distributed energy units can be introduced into the communication topology, so that the self state, the physical state of the power grid and the power generation and power utilization requirements of the adjacent units are comprehensively considered in the power adjustment process of each unit, the self-adaptive coordination adjustment is realized, and the coordination, the stability and the adjustment effectiveness of the whole operation of the virtual power plant can be improved. The application provides an energy coordination control method based on a virtual power plant, which is applied to a target distributed energy unit in the virtual power plant and comprises the steps of obtaining a current running state of the target distributed energy unit, a power grid physical state signal and first coordination information from at least one adjacent distributed energy unit in a preset communication topology, wherein the first coordination information comprises adequacy information representing a power generation capacity margin and/or emergency degree information representing power utilization requirement emergency degree, determining a power adjustment quantity based on the current running state, the power grid physical state signal and the first coordination information, performing power adjustment on the target distributed energy unit based on the power adjustment quantity to obtain an adjustment result, and synchronizing second coordination information to the adjacent distributed energy unit based on the adjustment result so that the adjacent distributed energy unit performs power adjustment according to the second coordination information. In some embodiments, the grid physical state signal includes a grid fundamental frequency and at least one power harmonic component information, the determining a power adjustment based on the current operating state, the grid physical state signal, and the first coordination information includes performing a spectral analysis on the power harmonic component information, determining a dominant harmonic type and magnitude, generating a harmonic suppression weight factor based on the dominant harmonic type and magnitude, and determining the power adjustment based on the current operating state, the grid fundamental frequency, the first coordination information, and the harmonic suppression weight factor. In some embodiments, the determining the power adjustment amount based on the current operation state, the grid fundamental frequency, the first coordination information and the harmonic suppression weight factor includes determining an information credib