A feeder transmission limit capacity evaluation method based on multi-parameter planning
A transmission limit and capacity evaluation model technology, applied in the field of feeder transmission limit capacity evaluation based on multi-parameter planning, can solve problems such as low calculation efficiency and inability to handle large-scale data, and achieve the effect of improving calculation efficiency
Active Publication Date: 2019-05-31
POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD +1
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Its disadvantage is that when the number of scenes increases, the calculation efficiency is low, and it cannot handle large-scale data.
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[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0049] Such as figure 1A method for evaluating the limit capacity of feeder transmission based on multi-parameter programming is shown. The process of the evaluation method is as follows: firstly, establish a feeder transmission limit capacity evaluation model, the feeder transmission limit capacity evaluation model is compos...
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The invention discloses a feeder transmission limit capacity evaluation method based on multi-parameter planning. The method comprises the following steps: establishing a feeder transmission limit capacity evaluation model; Generating a random variable sample set based on the historical data or the evaluation model, and solving a corresponding optimal solution according to the corresponding randomvariable in each scene in the sample set; And checking the optimal solution, forming a feasible solution set, and selecting the feeder transmission limit capacity which enables the objective functionto be optimal from the feasible solution set to complete the evaluation. The method solves the problem of feeder transmission limit capacity evaluation considering load and distributed power supply uncertainty in the power distribution network, is different from a traditional algorithm, greatly improves the calculation efficiency in the multi-scene optimization process, and solves the limitationof the calculation time on the sample number in the multi-scene optimization method in a breakthrough manner.
Description
technical field [0001] The invention belongs to the technical field of power system operation control, in particular to a method for evaluating the limit capacity of feeder transmission based on multi-parameter planning. Background technique [0002] When the distributed power is connected to the distribution network, during the peak period of wind power or photovoltaic unit output, due to the time mismatch between the output peak of the unit and the peak load demand, a reverse power flow will appear in the distribution network, which will cause some feeders to appear Therefore, in order to ensure the safety of the distribution network, it is very important to evaluate the transmission limit capacity of the feeder in the active distribution network. [0003] The difficulty of evaluating the limit capacity of feeder transmission lies in the processing of random fluctuations of distributed power and load power in the system, so it is necessary to consider uncertainty in the ev...
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IPC IPC(8): G06Q10/04G06Q50/06
CPCY04S10/50
Inventor 陆秋瑜吴文传朱誉夏天杨银国杨越林英明
Owner POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD