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Distribution System Reliability Calculation Method Considering Randomness of Demand Side Resource Response

A power distribution system and calculation method technology, which is applied in the field of power distribution system reliability calculation considering the randomness of demand-side resource response, can solve problems such as uncertainties in the safe operation of power distribution systems, random failures of demand-side resource equipment, etc., to achieve Improve the utilization rate of solar energy, optimize the energy allocation structure, and reduce the effect of abandoning light

Active Publication Date: 2021-12-31
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
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Problems solved by technology

[0003] However, different types of demand-side resources have different physical characteristics, and will be affected by random failures of demand-side resource equipment, introducing uncertain factors to the safe operation of power distribution systems
Traditional power distribution system reliability calculations do not consider the impact of demand-side resource response randomness on the system. Therefore, it is necessary to study the impact of random faults on demand-side resource equipment, and then quantitatively calculate the power distribution system that considers demand-side resource response randomness. reliability

Method used

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  • Distribution System Reliability Calculation Method Considering Randomness of Demand Side Resource Response
  • Distribution System Reliability Calculation Method Considering Randomness of Demand Side Resource Response
  • Distribution System Reliability Calculation Method Considering Randomness of Demand Side Resource Response

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Embodiment Construction

[0064] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:

[0065] A method for calculating the time-varying reliability of a power distribution system considering the randomness of resource response on the demand side, comprising the following steps:

[0066] Step 1. For the power distribution system of energy storage and distributed photovoltaic demand-side resources, according to the physical characteristics of demand-side resources, respectively establish physical models of different demand-side resources;

[0067] The physical models of different demand-side resources in the step 1 include a charging and discharging model of an energy storage device and a power generation model of a distributed photovoltaic device;

[0068] Wherein, the charging and discharging model of the energy storage device is as follows:

[0069] The discharge model of the i-th energy storage device is:

[0070]

[0071] in,...

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Abstract

The invention relates to a method for calculating the time-varying reliability of a power distribution system considering the randomness of demand-side resource response, comprising the following steps: Step 1. Establishing physical models of different demand-side resources according to the physical characteristics of the demand-side resources; Step 2 1. Considering the random failure of demand-side resource equipment, establish a response volume model for different demand-side resources; step 3, calculate the response volume after aggregation of demand-side resources; step 4, establish a response volume model after aggregation of demand-side resources considering random processes , to obtain the probability of the demand-side resource response in different states; step 5, calculate the time-varying reliability value of the distribution system considering the randomness of the demand-side resource response. The invention can accurately and quantitatively evaluate the influence of the demand-side resource response randomness on the reliability of the power distribution system.

Description

technical field [0001] The invention belongs to the technical field of power distribution system reliability analysis, and relates to a power distribution system reliability calculation method, in particular to a power distribution system reliability calculation method considering the randomness of demand-side resource response. Background technique [0002] With the development of information and communication technology, demand-side resources such as energy storage equipment, distributed power generation equipment, etc., can provide response to the power system, improve the ability to optimize the allocation of system resources, and thus improve the ability of the system to operate safely and reliably. Therefore, it is very important to quantitatively evaluate the ability of demand-side resources to provide response, and then evaluate the distribution system reliability calculation considering demand-side resources. [0003] However, different types of demand-side resource...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00H02J3/38H02J3/32G06Q10/06G06Q50/06
CPCH02J3/00H02J3/32G06Q10/06315G06Q50/06Y02E70/30
Inventor 加鹤萍刘敦楠李彦斌刘明光
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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