Maximum photovoltaic consumption method and system for power distribution network based on Monte Carlo simulation
A Monte Carlo simulation, distribution network technology, applied in photovoltaic power generation, AC networks with the same frequency from different sources, electrical components, etc., can solve the problem that the distribution network cannot detect its specific photovoltaic capacity, etc. The effect of increasing the maximum photovoltaic capacity
Pending Publication Date: 2019-09-17
李文转
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[0004] The purpose of the present invention is to solve the problem that the current distribution network cannot detect its specific photovoltaic consumption capacity, and proposes a distribution network photovoltaic maximum consumption method based on Monte Carlo simulation. Carry out Monte Carlo simulation of capacity, and use Matpower power flow calculation program to obtain distribution network operation results under different simulation conditions
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[0032] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0033] The following takes the IEEE33 node distribution network system as an example, combined with figure 1 The present invention will be described in detail.
[0034] figure 2 It is a 33-node grid structure diagram. Through Monte Carlo simulation technology, Matpower-based power flow calculations are performed on the distribution network with different access nodes and different access photovoltaic capacities, and the vulnerable nodes and the maximum photovoltaic consumption capacity of the distribution network are obtained.
[0035] image 3 It is the power flow calculation result under 10,000 Monte Carlo simulations. The abscis...
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The invention relates to a maximum photovoltaic consumption method and system for a power distribution network based on Monte Carlo simulation. The method obtains the power distribution network photovoltaic maximum consumption by adopting the concrete parameters of the power distribution network and related models, and analyzes vulnerability nodes in the photovoltaic consumption process to improve the photovoltaic maximum consumption. The method comprises the steps of: firstly, performing sit selection and constant volume insulation for photovoltaic access of the power distribution network by adopting the Monte Carlo simulation technology, then obtaining the voltage condition of each node by adopting a Matpower load flow calculation program, and searching the exceeding capacity of the node voltages by continuously improving the photovoltaic capacity; and finally, analyzing the exceeding condition of the node voltages of the power distribution network under the power distribution network photovoltaic maximum consumption to obtain vulnerability nodes, controlling an photovoltaic inverter to improve the power distribution network photovoltaic consumption capacity. The method provided by the invention relieves the problem that the power distribution network is strictly limited to the new energy access capacity, avoids the photovoltaic access vulnerability nodes in the power distribution network, improves the power distribution network photovoltaic consumption capacity to a certain extent and provides powerful support for the national clean energy strategy.
Description
technical field [0001] The present invention designs a distribution network photovoltaic maximum consumption method based on Monte Carlo simulation, which belongs to the field of new energy consumption in the electric power system, especially considering the negative photovoltaic inverter control strategy at the same time, and improving the photovoltaic consumption capacity of the distribution network technology. Background technique [0002] As human beings are increasingly concerned about the depletion of fossil energy and environmental degradation, the replacement of traditional energy by renewable energy will continue to accelerate. Many countries have issued relevant policies on solar energy and other new clean energy power generation. Therefore, the proportion of solar power generation will further expand in the future, and the content of new energy in the distribution network will gradually increase. [0003] With the continuous improvement of solar power generation...
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IPC IPC(8): H02J3/06H02J3/38
CPCH02J3/383H02J3/06Y02E10/56
Inventor 李文转李江鑫潘玉柱石振东成慧娟卢建生
Owner 李文转