An economic dispatch method for microgrid considering time-varying time delay of communication
A technology of time-varying time-delay and economic scheduling, applied in the direction of single-network parallel feeding arrangement, information technology support system, system integration technology, etc., can solve problems affecting system convergence speed, system instability, etc., and achieve micro-grid economic scheduling Overall, the effect of improving computing efficiency and reducing communication load
Active Publication Date: 2022-07-12
NORTHEASTERN UNIV LIAONING
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, in practical applications, when each agent receives information sent by other agents, there will be communication time lag due to the communication distance or communication bandwidth limitation between each other. Excessive communication time lag will not only affect the convergence speed of the system, but even will lead to system instability
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
[0083] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.
[0084] In this example, as figure 1 Taking the 6-bus node power distribution network shown as an example, a microgrid economical dispatching method of the present invention considering the time-varying time delay of communication is used to perform economical dispatching of the microgrid. An economic dispatch method for microgrid considering time-varying time delay of communication, such as figure 2 shown, including the following steps:
[0085] Step 1: Assume the microgrid has n 1 traditional generators, numbering each generator in sequence 1, 2, 3...n 1 ; has n 2 new energy generators, number n in turn for each generator (n1+1) , n (n1+2) ,…n (n1+n2) ; Determine the microgrid communi...
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 provides an economical dispatching method for a microgrid considering the time-varying time delay of communication, and relates to the technical field of economical dispatching of power systems. The method first determines the communication topology of the microgrid, and constructs the adjacency matrix of the communication topology of the microgrid; then judges whether the time delay of the power generation line exceeds the upper bound of the time delay, the estimated value of the output power of all traditional generators and the output power of all new energy generators Whether the sum of the initial values is equal to the total load of the microgrid; calculate the initial value of the incremental cost of all traditional generators in the microgrid and the incremental cost convergence value of all traditional generators when the cost is the lowest; finally calculate the satisfactory cost of all traditional generators The power emitted at the lowest time, the output power of the traditional generator and the output power of the new energy generator are output. The economic dispatching method of the microgrid considering the time-varying time delay of communication provided by the invention can make up for the deficiency of centralized optimization, reduce the communication burden and improve the operation efficiency.
Description
technical field [0001] The invention relates to the technical field of power system economic dispatch, in particular to an economic dispatch method for a micro-grid considering the time-varying time delay of communication. Background technique [0002] Microgrid is a small power generation and distribution system composed of distributed power sources, energy storage devices, energy conversion devices, various loads, control equipment and protection devices. Compared with traditional power grids, microgrids are more flexible, reliable, and environmentally friendly, and have received a lot of research by domestic and foreign experts and scholars. In many studies on microgrid, economic dispatch is a key content. The economic dispatch of the microgrid refers to meeting the load demand and reasonably allocating the output of each generator set to minimize the total cost of the microgrid. [0003] Microgrid economic dispatch optimization methods can be divided into two categorie...
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 & Authority Patents(China)
IPC IPC(8): H02J3/46
CPCY04S10/50
Inventor 黄博南刘力宁郑超铭李玉帅刘鑫蕊孙秋野杨珺马大中李海峰刘昊侗
Owner NORTHEASTERN UNIV LIAONING