Power distribution network optimization method and power distribution network optimization device
An optimization method and technology of distribution network, applied in the field of power system, can solve the problems of voltage exceeding limit, reduce the operation safety of distribution network, voltage fluctuation of distributed power supply, etc., so as to improve operation safety and reduce active power network loss. Effect
Active Publication Date: 2016-10-26
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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Problems solved by technology
The output of the distributed power generation in the distribution network after the power flow distribution changes will produce voltage fluctuations, and even the phenomenon of voltage exceeding the limit, thus reducing the operation safety of the distribution network
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[0025] In order to further illustrate the distribution network optimization method and device provided by the embodiments of the present invention, a detailed description will be given below in conjunction with the accompanying drawings.
[0026] The distribution network optimization method provided by the embodiment of the present invention is used in the distribution network. The distribution network includes energy storage devices, photovoltaic power generation equipment, load equipment, reactive power compensation equipment, on-load tap changer transformers and multiple line nodes. The embodiment is described by taking a 10kV distribution network as an example. Wherein, the number of energy storage devices, photovoltaic power generation equipment, load equipment, reactive power compensation equipment, and on-load voltage regulating transformers is not limited here. Specifically, the photovoltaic power generation equipment can be a photovoltaic array or a photovoltaic power...
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The invention discloses a power distribution network optimization method and a power distribution network optimization device, wherein the power distribution network optimization method and the power distribution network optimization device relate to the technical field of a power system and settle the problems of high active network loss and low operation safety in a power distribution network. The power distribution network optimization method comprises the steps of acquiring control variables, and determining line parameters and operation data of the power distribution network according to the control variables, wherein the control variables comprise reactive power output of reactive compensation equipment, gear of a loaded voltage regulating transformer, active power output of an energy storage device, and power factor of photovoltaic power generating equipment; establishing an objective model according to the line parameters and the operation data; performing calculation by means of a non-dominated sorting genetic algorithm with an elitist strategy for obtaining a Pareto optimality solution set of the objective model, and performing calculation for obtaining a standard satisfaction which corresponds with each solution in the Pareto optimality solution set; obtaining an optimized objective model, and adjusting the control variables of the power distribution network according to the control variables which correspond with the optimized objective model. The power distribution network optimization method and the power distribution network optimization device are applied in the power distribution network.
Description
technical field [0001] The invention relates to the technical field of power systems, in particular to a distribution network optimization method and device. Background technique [0002] In recent years, users' demand for electricity has continued to grow. Due to the shortage of traditional energy sources, the power industry is also actively developing new energy sources. In order to meet the needs of users, distributed power generation has begun to be used in distribution networks. Distributed power supply is an independent power supply compatible with the surrounding environment. It can use natural gas, coal bed methane and other fuels, or use waste gas resources such as biogas and coke oven gas, or use renewable resources such as wind energy, solar energy, and water energy to generate electricity. Grid power supply, so as to adjust the peak power consumption, and send power to remote users or commercial and residential areas. At this stage, it is more common to use pho...
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IPC IPC(8): H02J3/00H02J3/18H02J3/38
CPCH02J3/00H02J3/18H02J3/383H02J2203/20Y02E10/56Y02E40/30
Inventor 周保荣张勇军李鸿鑫杨雨瑶许志恒
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD