A collaborative optimization operation method for energy internet
An energy Internet and collaborative optimization technology, applied in the direction of single-network parallel feed arrangement, communication network with energy trade/energy transmission authority, resources, etc., can solve the problems of energy Internet participants' privacy leakage and slow convergence speed, and achieve Good convergence, the effect of good convergence performance
Active Publication Date: 2022-04-05
STATE GRID JIANGSU ECONOMIC RES INST +3
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Problems solved by technology
Among them, both the consensus algorithm and the subgradient algorithm have only first-order convergence, and the convergence speed is relatively slow.
On the other hand, since the (sub)gradient information and second-order gradient information of the optimization objective function such as the cost micro-increase rate belong to the private information of each distributed unit, information interaction between distributed devices belonging to different subjects will cause energy Internet participants to privacy breach
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[0055] by figure 2 The actual heating area shown is an example, and the first-level pipe network in this area is laid as follows figure 2 shown. This zone has 50 pipes, 24 nodes and 26 secondary heat exchangers, two heat sources. One heat source is a micro gas turbine and the other is a gas boiler. In order to prevent excessive heat load, it is adjusted through two peak regulation cut-off valves V1 and V2. The design flow rate of the heating network pipeline is shown in Table 1. The power grid part adopts IEEE39 node pure AC power grid, and the No. 32 generator and No. 39 generator of IEEE39 node pure AC power system are modified into micro gas turbines, which are respectively connected to No. 18 node and No. 3 node in the Belgian 20-node thermal system.
[0056] Table 1 Design flow rate of heating pipeline
[0057]
[0058] The energy interconnection collaborative optimization operation method in this embodiment adopts LINGO11.0 as the simulation platform to carry o...
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The invention discloses an energy Internet collaborative optimization operation method, which mainly includes the following steps: establishing a distributed energy optimization model of the heating network and the power grid with the goal of minimizing the respective operating costs of the power grid and the heating network; using a gas turbine as a coupling between the heating network and the power grid Carrier, couple the two regions through the coupling equation to form the distributed energy optimization model of the electricity-thermal interconnection integrated energy system; use the improved synchronous ADMM algorithm to solve the distributed energy optimization model of the electricity-heat interconnection integrated energy system, after repeated iterations Obtain the optimal distribution of controllable resources in the heating network and power grid. In the present invention, the gas turbine is used as an electric-thermal coupling link, and the node temperature transient equation is introduced on the basis of considering the time scale difference of different energy utilization, and the synchronous ADMM is used to perform collaborative optimization of electric energy and thermal energy, and the algorithm has good convergence and optimization The result is more realistic.
Description
technical field [0001] The invention relates to a collaborative optimization operation method of the energy internet based on the characteristics of the heating network, which belongs to the field of energy internet optimization. Background technique [0002] With the development of Internet technology, Energy Internet has become an inevitable trend to solve the problem of local consumption of distributed renewable energy, realize the close integration of multiple energy networks, and improve the overall energy efficiency of the system. How to carry out distributed optimization modeling of multi-energy networks with the support of multi-energy conversion technology to realize the coordinated operation of integrated energy systems is the key to solving energy efficiency problems in various links from energy production, transmission to energy consumption. [0003] At present, relevant research has explored and analyzed the distributed optimization methods of the Energy Interne...
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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06H02J3/00H02J3/38
CPCH02J3/386G06Q10/04G06Q10/067G06Q50/06H02J3/00H02J3/008H02J3/381H02J2203/20Y02E10/76Y04S10/50Y02E40/70
Inventor 韩俊窦晓波黄俊辉梁馨予蔡超沈璐陈曦王娜袁晓昀陈皓菲
Owner STATE GRID JIANGSU ECONOMIC RES INST