Unlock instant, AI-driven research and patent intelligence for your innovation.
Two-stage robust optimal dispatch method and system considering energy storage's participation in secondary frequency regulation
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A secondary frequency modulation and robust optimization technology, applied in system integration technology, information technology support systems, calculations, etc., can solve problems such as inability to undertake peak shaving tasks alone, limited power and capacity, etc., to reduce the number of calculation iterations, enhance Robustness, the effect of improving flexibility
Active Publication Date: 2022-03-04
RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER +1
View PDF6 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, its power and capacity are limited, and it cannot undertake the task of peak regulation alone.
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 more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0031] In one or more implementations, a two-stage robust optimization scheduling method considering energy storage participating in secondary frequency regulation is disclosed, refer to figure 1 , the method specifically includes the following steps:
[0032] Step 1, based on the energy storage system participating in the long-term scale power system dispatching strategy, refer to figure 1 , first determine the scheduling day plan through forecasting, and at the same time, modify the power generation plan through ultra-short-term forecasting, and then send instructions to the generator.
[0033] Analyze the AGC signal of the power grid, decouple the power of the AGC signal, use the energy storage system to cooperate with the AGC unit, assign the low-frequency change and high-frequency change to the conventional AGC unit and the energy storage device, and determine the model uncertainty set;
[0034] Specifically, the energy storage system cooperates with the AGC unit to make...
Embodiment 2
[0093] In one or more embodiments, a two-stage robust optimization scheduling system considering energy storage participating in secondary frequency regulation is disclosed, including:
[0094] A device for obtaining the AGC signal of the power grid and decoupling the power of the AGC signal;
[0095] means for distributing the resulting low-frequency variations and high-frequency variations to conventional AGC units and energy storage devices, respectively;
[0096] It is used to determine the uncertainty set, minimize the outer layer to solve the minimum operating cost of the system, and the inner layer to maximize the solution to the most extreme scenario of the energy storage system during operation as a two-layer objective function to build a two-stage robust adaptive optimization scheduling model. device;
[0097] The device is used to solve the two-stage robust self-adaptive optimization scheduling model in stages to obtain the optimal power base point of the AGC unit ...
Embodiment 3
[0100] In one or more embodiments, a terminal device is disclosed, including a server, the server includes a memory, a processor, and a computer program stored on the memory and operable on the processor, and the processor executes the The program realizes the two-stage robust optimal scheduling method in the first embodiment, which takes energy storage into account in secondary frequency regulation. For the sake of brevity, details are not repeated here.
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 discloses a two-stage robust optimization scheduling method and system considering energy storage participating in secondary frequency regulation, including: obtaining the AGC signal of the power grid, decoupling the power of the AGC signal, and using the energy storagesystem to cooperate with the AGC unit to obtain The low-frequency changes and high-frequency changes of the low-frequency changes are assigned to the conventional AGC unit and the energy storage device respectively; the uncertainty set is determined, the outer layer minimizes the solution to the minimum operating cost of the system, and the inner layer maximizes the solution to the most extreme scenario of the energy storage system during operation as A two-layer objective function is used to construct a two-stage robust adaptive optimal dispatching model; the two-stage robust adaptive optimal dispatching model is solved in stages to obtain the optimal power base point of the AGC unit and the maximum matching amount of energy storage to determine the storage capacity. The optimal configuration operation strategy that can participate in secondary frequency regulation. The invention converts the standby demand of the AGC unit into the demand of climbing rate and response capability, and uses the energy storage system to make up for the deficiency of the AGC unit, and expands the dispatchable coordination area of the system.
Description
technical field [0001] The present invention relates to the technical field of electric powerautomation, in particular to a two-stage robust optimization scheduling method and system considering energy storage participating in secondary frequency regulation. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] At present, the overall energy development trend in the world is undergoing the third major transformation of new energy sources, which indicates that the global power system is undergoing structural changes. For my country's future power grid structure, the function of traditional large units is no longer large-scale power generation, but is developing towards a distributed structure, and the main problem is also shifting to the dispatching direction of realizing source-load balance. The response time of traditional large generating un...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More