An optimization method for microgrid power supply planning scheme considering dynamic spatiotemporal characteristics
A technology of power planning and space-time characteristics, applied in electrical components, circuit devices, AC network circuits, etc., can solve problems such as failure to take into account benefit indicators and lack of complementary benefit evaluation of co-generation of different types of intermittent power sources.
Inactive Publication Date: 2017-12-05
武汉网泛电力科技有限公司
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[0006] The existing index research does not take into account the benefit index, and there is a lack of index to evaluate the complementary benefits of joint power generation of different types of intermittent power sources
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[0057] Below in conjunction with accompanying drawing, the technical scheme of the present invention is described in further detail:
[0058] The present invention comprehensively considers economic indicators, reliability indicators, benefit indicators, and environmental protection indicators to optimize the microgrid investment plan (attached figure 1 ). First, the stochastic process model of technological progress and fuel price in the future is established to describe the dynamic spatiotemporal characteristics of microgrid investment. Relevant time-varying parameters are added to the economic indicators of the microgrid, and a type of power generation benefit index is introduced to describe the complementary benefits of joint power generation of multiple intermittent power sources. Then, the AHP is used to comprehensively evaluate the above indicators, and the optimal scheme is selected from the power supply planning schemes of microgrids with different spatio-temporal ch...
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The invention relates to a micro power grid power supply planning scheme optimal selection method taking dynamic time-space features into consideration. First of all, a random process model is established for describing the dynamic time-space features in power supply planning of a micro power grid, based on a real options theory, time-varying parameters are added to economic indexes, and an energy price risk rate index is brought forward. Generating benefit indexes are introduced for describing complementation benefits of joint power generation of multiple intermittent power sources. Finally, weights of the economic indexes, reliability indexes, complementation benefit indexes and environmental protection indexes of a power supply planning scheme are made clear by use of a hierarchical analytical method, and comprehensive evaluation and optimal selection are performed on the power supply planning schemes of the micro grid with different time-space features. According to the invention, for the purpose of solving the planning problem of an independent micro power grid about "when to start a micro power grid investment project", the power supply planning schemes of the micro grid are evaluated and preferably selected by taking influences exerted by the schemes on full-life-cycle economic benefits of the micro power grid, reliability, complementarity of joint power generation of multiple energy and environmental protection into consideration.
Description
technical field [0001] The invention relates to a method for optimizing a power supply planning scheme, in particular to a method for optimizing a microgrid power supply planning scheme that can take into account dynamic space-time characteristics. Background technique [0002] How to establish an evaluation index system for the power supply planning scheme of the microgrid and give the basis for decision-making optimization has become an urgent research problem. In the current small amount of planning and evaluation studies applicable to microgrids, the evaluation indicators of reliability, economy, and environmental protection are mainly given. [0003] However, these evaluation index systems do not take into account the dynamic spatiotemporal characteristics of microgrid planning investment. The dynamic spatio-temporal characteristics of microgrid planning investment include the uncertainty of economic costs due to the start of the planning project cycle in different yea...
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IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 何俊舒征宇黄文涛
Owner 武汉网泛电力科技有限公司