A method for realizing grid self-optimization and equal micro-increase rate acceleration for various controlled objects
A technology of controlled object and equal micro-increase rate, applied in the direction of single-network parallel feeding arrangement, etc., can solve the problems of complicated communication network design and so on
Inactive Publication Date: 2018-02-06
ZHEJIANG UNIV
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Distributed control generally requires a connected communication network, and the design of the communication network is complex
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[0107] Establish an island AC microgrid in the Simulink component of Matlab software, including five distributed generators with a capacity of 1.0MW, two of which are distributed generators with P-F control strategy, and three are distributed generators with F-P control strategy machine, such as Figure 4 shown.
[0108] Distributed generator adopts the control method that the present invention proposes, specifically as follows:
[0109] 1) For the controlled object in the micro-grid, the control method of three-level hierarchical control is used to control;
[0110] 2) Construct any communication network, and there is a cost micro-increase rate λ between the controlled objects with communication lines i (k) data transmission, there is no cost micro-increase rate λ between controlled objects without communication lines i (k) data transfer;
[0111] The communication topology of the communication network is not connected, that is, the distributed generator may not communica...
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The invention discloses a method for realizing grid self-optimization and equal micro-increase rate acceleration for various controlled objects. For different controlled objects in the micro-grid, use power-frequency control method or frequency-power control method to control; construct any communication network, and have data transmission with a small increase rate of cost between the controlled objects with communication lines; The micro-increase rate consistent acceleration method is adopted between the controlled objects of the communication line to obtain the cost micro-increase rate of each controlled object after accelerated convergence. Through iterative calculations, the micro-increase rates of all controlled objects are equal to achieve The self-optimization of the power grid and the acceleration of the same micro-increase rate. The present invention can realize the self-optimization of the controlled object, and at the same time, carry out information transmission and micro-increase rate consistency method in any communication network environment, so that the micro-increase rate of the controlled object can be accelerated and converged, and the economic optimization can be realized; and the communication network is not There is a connectivity requirement, which accelerates the convergence rate with consistent micro-increase rates.
Description
technical field [0001] The present invention relates to an optimization method of power grid and micro-increase rate, in particular to a method for realizing self-optimization of power grid and acceleration of equal micro-increase rate for various controlled objects, which can be applied to the communication network environment and non-connected communication network environment at the same time. Connected communication network environment. Background technique [0002] With the development of new energy and the continuous emergence of new technologies, the traditional power system's generation, transmission, distribution, and transmission are all facing the fate of upgrading. The overall development trend is the smart grid based on distributed power generation. Microgrid, multi-agent control, and virtual power plant are effective modes of operation in smart grids. Under the management of decentralized power management systems, they can provide good economic benefits and be...
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IPC IPC(8): H02J3/46
Inventor 吴莹赵睿章雷其辛焕海汪震
Owner ZHEJIANG UNIV