Method and system for evaluating improvement of new energy acceptance capability of power distribution network, and medium
It is a technology of acceptance capacity and new energy, which is applied in the direction of AC network circuit, single-network parallel feeding arrangement, photovoltaic power generation, etc. Intuitive result and simple calculation process
Pending Publication Date: 2022-02-01
GUANGDONG POWER GRID CO LTD +1
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[0004] The embodiment of the present invention provides an evaluation method, system and medium for improving the new energy acceptance capacity of the distribution network, so as to solve the problem that the existing method for evaluating the new energy acceptance capacity of the distribution network cannot evaluate the new energy acceptance of the distribution network by the flexible interconnection system The problem of capacity improvement
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[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.
[0053] As introduced in the background technology, the evaluation method of the new energy acceptance capacity of the distribution network mainly faces the following problems:
[0054] With the continuous advancement of energy reform, a large number of distributed power sources are connected to the distribution network, which leads to the deterioration of the state of the power grid and power quality. With economic development, the number of loads that require uninterrupted power supply is increasing, and higher requ...
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The embodiment of the invention discloses a method and a system for evaluating improvement of the new energy acceptance capability of a power distribution network by a flexible interconnection device, and a medium. The evaluation method comprises the following steps: acquiring first historical data of a new energy generator set and second historical data of the new energy generator set accessed to a flexible interconnection device; determining the first state total power of the new energy generator set according to the first historical data; according to the second historical data, determining the second state total power of the new energy generator set after the flexible interconnection device is accessed; and according to the first state total power and the second state total power, calculating the new energy acceptance capability increment of the power distribution network. According to the technical scheme provided by the embodiment of the invention, the new energy acceptance capability increment of the power distribution network is calculated by determining the first state total power of the new energy generator set and the second state total power after the flexible interconnection device is accessed, the evaluation of the flexible interconnection device on the improvement of the new energy acceptance capability of the power distribution network is realized, the calculation process is simple, and the evaluation result is visual.
Description
technical field [0001] The embodiments of the present invention relate to the technical field of power system distribution network testing, and in particular to an evaluation method, system and medium for improving the acceptance capacity of distribution network for new energy. Background technique [0002] At present, many inventions have proposed various methods for evaluating the new energy acceptance capacity of the distribution network, but generally, the evaluation is carried out based on the determined distribution network frame and traditional equipment adjustment methods are considered, and the distributed generation (DistributedGeneration, DG) is changed. Access points and distribution, check the maximum total capacity of DG that does not make the grid exceed the security constraints. [0003] The existing methods for evaluating the new energy acceptance capacity of the distribution network cannot evaluate the improvement of the new energy acceptance capacity of th...
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IPC IPC(8): H02J3/46H02J3/48H02J3/50
CPCH02J3/466H02J3/48H02J3/50H02J2300/24H02J2300/28H02J2203/20Y02E10/56
Inventor 钟锦星陈盛燃罗旭恒李俊辉罗煜曾子县王凯亮丁奕李家淇袁淼张育宾袁桂芬黄劲东刘伟斌叶泽锋李小平
Owner GUANGDONG POWER GRID CO LTD