Distributed economic dispatching method and system for regional power system under non-ideal communication

A regional power system and economic dispatching technology, applied in the field of distributed economic dispatching, can solve problems such as centralized dispatching strategy is difficult to achieve tracking performance, supply and demand balance global constraints are difficult to meet in real time, lack of privacy protection for power generators and users, etc., to save land Resource and Central Server Investment, Elimination of Side Effects, Effects of Fast Tracking References

Active Publication Date: 2021-08-20
SHANDONG UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Second, due to latency and server capacity constraints, it is difficult to achieve satisfactory tracking performance with rolling corrections for centralized scheduling strategies
Third, centralized management lacks protection for the privacy of generators and users
But the existing distributed economic scheduling has the following limitations: 1) It is difficult for participants to obtain some global information through neighbor communication, without this inform

Method used

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  • Distributed economic dispatching method and system for regional power system under non-ideal communication
  • Distributed economic dispatching method and system for regional power system under non-ideal communication
  • Distributed economic dispatching method and system for regional power system under non-ideal communication

Examples

Experimental program
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Example Embodiment

[0038] Example 1

[0039] In this embodiment, the distributed economic scheduling method of the regional power system under non-ideal communication is disclosed, including:

[0040] Texturing communication maps for distributed economic scheduling, communication maps implement a two-way communication between universal nodes and generator nodes;

[0041] On the basis of a communication map, the global power balance is constrained, and the operating cost of generator sets is minimized to establish a distributed optimized scheduling model;

[0042] Describe the distributed optimized scheduling model with Lagrang's original dual;

[0043] Get all load power;

[0044] Solving the load power input Lagrangian's original sequence and obtains the power generation of each generator.

[0045] Further, when describing the distributed optimization scheduling model with Lagrang, the relationship between the incremental cost and the Lagrangian multiplier correspondence according to the power supp...

Example Embodiment

[0189] Example 2

[0190] In this embodiment, the distributed economic scheduling system of the regional power system under unimatted communication is disclosed, including:

[0191] Communication map constructing module, communication diagram for constructing distributed economic scheduling, communication map implementing a two-way communication between universal nodes and generator nodes;

[0192] Distributed Optimized Scheduling Model Create Module for constraints on a communication map, and the minimum operating cost of generator sets is minimized for the intensive distributed optimization scheduling model.

[0193] Original dual description module is used to describe the distributed optimized scheduling model with Lagranga.

[0194] Load power acquisition module for acquiring all load power;

[0195] Generator power generation module is used to solve the load power input Lagrangian original pair description to obtain the power generation of each generator.

Example Embodiment

[0196] Example 3

[0197] In this embodiment, an electronic device is disclosed, including a memory and a processor, and a computer instruction stored on the memory and running on the processor, the computer instructions are operated by the processor, and the disclosure is disclosed in Example 1 The steps of the distributed economic scheduling method of the regional power system under the ideal communication.

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Abstract

The invention discloses a distributed economic dispatching method and system for a regional power system under non-ideal communication. The method comprises the steps: constructing a communication graph of distributed economic dispatching, and enabling the communication graph to achieve the bidirectional communication connection between a universal node and a generator node; on the basis of the communication graph, establishing a distributed optimization scheduling model by taking global power balance as a constraint and taking the minimum operating cost of a generator set as a target; describing the distributed optimization scheduling model by using a Lagrange primitive dual; obtaining all load power; and inputting the load power into the Lagrange primal dual description for solving to obtain the generating capacity of each generator. An economic dispatching problem is decomposed into a plurality of parallel sub-problems by using a prime-dual principle, the calculation problem of the supply and demand balance of the distributed regional power system is solved, and the load can be reasonably distributed to the generator set to realize optimal dispatching on the premise of ensuring the consistency of the tiny-increasing-rate.

Description

technical field [0001] The invention relates to the technical field of economic dispatching of regional power systems in the electric power industry, in particular to a distributed economic dispatching method and system for regional power systems under non-ideal communication. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] With the increasing popularity of distributed energy resources, the flexibility and scalability of the power system are necessary conditions to ensure the reliable operation of the regional power system. An appropriate scheduling strategy must allow the system to scale and be robust to topological perturbations. In addition, the renewal / expansion fee should be slashed to meet the increasing load demand and the increasing number of distributed renewable energy sources. In recent years, a great deal of research has bee...

Claims

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Application Information

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IPC IPC(8): H02J3/06H02J3/24H02J3/38H02J13/00G06Q10/06G06Q50/06
CPCH02J3/06H02J3/24H02J3/38H02J13/00032G06Q10/0631G06Q50/06H02J2203/10H02J2203/20Y04S10/12Y04S10/50Y04S10/40Y02E40/70
Inventor 吕天光张海静李竞刘继彦陈宋宋郝然赵昕王鹏陈博周翔宇曹胜楠李晨辉刘知凡
Owner SHANDONG UNIV
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