A distribution network energy storage optimization configuration method
A technology for optimizing configuration and distribution network, applied in the field of electric power, can solve problems such as power reverse transmission, changing the flow direction of distribution lines, and voltage exceeding the limit, so as to achieve the effect of ensuring safe operation
Active Publication Date: 2020-06-19
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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However, if there are many types of power sources in the distributed power generation and they are connected to the distribution network with a high penetration rate, then the distributed power Changes in the output power will cause problems such as power reverse transmission and voltage over-limit
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0019] see figure 1 , the distribution network energy storage optimization configuration method provided by the embodiment of the present invention, the distribution network includes a distribution line connected to a distributed power source, and the distributed power source includes a wind power source and a photovoltaic power source; the installed capacity of the wind power source and the photovoltaic power source is determined In this case, the distribution net...
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The invention discloses a power distribution network energy storage optimization configuration method, relates to the electric power technology field and solves a problem of distributed influence on apower distribution line when a distributed power source with high permeability is connected with the power distribution line to guarantee safe operation of the power distribution network. The methodcomprises steps that according to characteristic parameters of the power distribution line, tolerance penetration ratio limit LTPR of the distributed power source in the power distribution line is acquired, if LTPR > 0 and another expression described as the specification is satisfied, according to the LTPR of the distributed power source in the power distribution line and a target access proportion w of a wind power source of the distributed power source, a photovoltaic energy storage configuration ratio alpha(es)<pv> is acquired, and energy storage equipment is accessed at a photovoltaic grid connected point of the power distribution line according to the photovoltaic energy storage configuration ratio. The method is advantaged in that the method is applied to energy storage configuration of the distributed power source with high permeability.
Description
technical field [0001] The invention relates to the field of electric power technology, in particular to a method for optimal configuration of energy storage in a distribution network. Background technique [0002] Distributed Generator (DG for short) is a multi-generation facility that uses renewable energy to generate electricity. It can develop and utilize distributed renewable energy such as solar energy and wind power, and improve the utilization efficiency of non-fossil energy. [0003] Generally speaking, distributed power needs to be connected to the distribution network through a voltage level below 10kV-35kV to achieve comprehensive utilization of resources. However, if there are many types of power sources in the distributed power generation and they are connected to the distribution network with a high penetration rate, the distributed power generation will not only change the power flow of the distribution line, but also in different time periods, Changes in th...
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IPC IPC(8): H02J3/28H02J3/38
CPCY02E10/56Y02E70/30
Inventor 赵文猛周保荣姚文峰李鸿鑫王滔卢斯煜王彤黄东启程兰芬聂金峰
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD