Multi-voltage class power grid distributed generation optimization configuration method by considering power delivery
A multi-voltage level, distributed power technology, applied in the direction of wind power generation, photovoltaic power generation, single-network parallel feeding arrangement, etc., can solve the problem of poor economy of DG optimal configuration and inability to adapt to the requirements of grid-connected development of high-penetration distributed power generation, etc. problems, to achieve the effect of realizing consumption capacity, improving consumption level, improving consumption and utilization rate
Active Publication Date: 2019-06-07
STATE GRID HEBEI ELECTRIC POWER CO LTD +1
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Problems solved by technology
Conventional planning methods only consider the randomness and timing of different types of DG output and load demand, resulting in poor economic efficiency of DG optimal configuration, and cannot adapt to the development requirements of high-penetration distributed power grid-connected
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[0045] In order to make the above objects, features and advantages of the present invention more comprehensible, the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be pointed out that the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all those skilled in the art can obtain without creative work. Other embodiments all belong to the protection scope of the present invention.
[0046] like Figure 1-4 As shown, the present invention provides a multi-voltage level power grid distributed power optimization configuration method considering power delivery, including the following steps:
[0047] S1. Analyze the output of distributed power sources such as wind power generation and photovoltaic power generation and the timing characteristics of loads;
[0048] ...
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The invention discloses a multi-voltage class power grid distributed generation optimization configuration method by considering power delivery. The method comprises the steps of: obtaining output timing sequence features of a distributed generation such as wind power generation and photovoltaic power generation, and timing sequence features of a load; analyzing and calculating in-situ consumptionamount and delivery power in a dual-voltage class coupling network; and establishing a dual-voltage class coupling network DG (distributed generation) optimization configuration multi-target model bytaking power delivery to screen configuration schemes to obtain an optimal configuration scheme in the dual-voltage class network. The in-situ consumption amount and the power delivery of the DG arecombined and applied into the multi-voltage class power grid to make up restriction due to insufficient consumption ability of a single-layer network so as to improve the consumption level of the distributed generation in the system and facilitate improvement of the problems of the DG utilization rate and the system economic benefit. The multi-voltage class power grid distributed generation optimization configuration method by considering power delivery achieves the coordination of the consumption abilities between multi-voltage class network by considering power delivery, and has a higher application value compared to a traditional planning method.
Description
technical field [0001] The invention relates to the technical field of renewable energy power grids, in particular to a method for optimally configuring distributed power sources in multi-voltage-level power grids considering power delivery. Background technique [0002] In recent years, problems such as energy crisis, environmental pollution, and power demand growth have promoted the transformation of the traditional energy utilization model based on the centralized use of fossil energy to a distributed and renewable energy structure, and vigorously develop high-penetration distributed renewable energy. The power system of energy has become an inevitable trend. In addition, with the rapid growth of distributed generation (DG) installed capacity in my country, problems such as insufficient local load consumption capacity and possible waste of resources have become increasingly prominent. Conventional planning methods only consider the randomness and timing of different type...
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Login to View More IPC IPC(8): H02J3/38
CPCY02E10/56Y02E10/76
Inventor 李勇姚慧芳谭益乔学博唐亮孙辰军王卓然
Owner STATE GRID HEBEI ELECTRIC POWER CO LTD