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Transmission system planning method using distributionlly robust optimization

A probability distribution and power transmission system technology, applied in data processing applications, information technology support systems, instruments, etc., can solve problems such as the inability to guarantee the effectiveness of planning schemes, and achieve the effect of ensuring effectiveness

Active Publication Date: 2015-04-08
STATE GRID CORP OF CHINA +1
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Problems solved by technology

Therefore, the probability distribution used to describe the uncertainty of wind power itself also has uncertainty. The above-mentioned scenario analysis method or probability analysis method does not take this uncertainty into account, so the effectiveness of its planning scheme cannot be guaranteed

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  • Transmission system planning method using distributionlly robust optimization
  • Transmission system planning method using distributionlly robust optimization
  • Transmission system planning method using distributionlly robust optimization

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Embodiment Construction

[0028] The present invention adopts the probability distribution robust chance-constrained transmission system planning model (Distributionally robust chance-constrained transmission system planning, referred to as DRCC-TSP) to simulate the power transmission system planning problem; according to the known wind power second-order moment information, consider all wind power Probability distribution of probability distribution; comprehensively use S-lemma and matrix Schur complement property to eliminate random variables in the robust chance constrained programming model; use genetic algorithm based on linear matrix inequality (Linear matrix inequality, LMI) optimization to solve, and according to power system security To meet the requirements of stable operation, choose the optimal transmission system planning scheme.

[0029] In this embodiment, a power transmission system planning method using probability distribution robust optimization includes the following steps:

[0030]...

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Abstract

The invention relates to a transmission system planning method using distributionlly robust optimization, and provides a transmission system planning method using distributionlly robust optimization. A transmission network planning scheme which meets the requirements of safe operation of a transmission system under any possible probability distribution realization scenario of wind power and minimizes the investment cost is selected. According to the technical scheme of the invention, the method comprises the following steps: (1) a distributionlly robust chance-constrained optimization model of transmission system planning is established; (2) random variables in the distributionlly robust chance-constrained optimization model are eliminated by making use of the complementary features of S-lemma and the matrix Schur, and the distributionlly robust chance-constrained optimization model is converted into a deterministic model containing a matrix inequality; and (3) the model obtained in step (2) is solved by a genetic algorithm based on linear matrix inequality optimization, and the final transmission system planning scheme is obtained according to the requirements of power system operation. The transmission system planning method using distributionlly robust optimization of the invention is mainly applicable to power grid planning and construction.

Description

technical field [0001] The invention relates to a power transmission system planning method, in particular to an optimal power transmission system planning method using a probability distribution robust chance constraint model, which is mainly applicable to power grid planning and construction. Background technique [0002] In recent years, as the main force of new energy power generation, wind power has played an important role in reducing environmental pollution and adjusting energy structure. However, the intermittence, randomness and partial predictability of wind power also bring severe challenges to the planning and operation of the transmission system. In order to improve the security of the power grid, we should start from the planning of the transmission system, analyze the impact of wind power uncertainty on the power grid with new ideas, and then formulate a robust and economical planning scheme to create conditions for large-scale wind power grid integration. ...

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/06G06N3/12
CPCY04S10/50
Inventor 徐谦孙黎滢杨升峰徐晨博朱永佳戴攀
Owner STATE GRID CORP OF CHINA
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