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Two-time-scale-based user-side energy management method

A time-scale and energy management technology, applied in the direction of AC network, AC network circuit, electrical components, etc. with energy trade/energy transmission authority, can solve the problems of difficult to predict accurately, increase the complexity of the problem, and have many related parameters. The effect of reducing complexity

Active Publication Date: 2017-09-08
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

Since the probability density function of distributed clean energy generation is usually more complicated, there are many related parameters, and it is difficult to predict accurately, which greatly increases the complexity of the problem

Method used

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Embodiment Construction

[0038]In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0039] The purpose of the present invention is to study the user-side energy management strategy adapted to the energy switch, and the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0040] A specific embodiment of the present invention provides a user-side energy management method based on dual time scales, which can be adapted to energy switches and can perform comprehensive coordination of "source, load, storage" and energy transactions. Combined with the coordinated optimization of load power consumption, energy storage charging and discharging power, and energy transaction power in a large time scale, and load regulation in a small time scale, the user utilit...

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Abstract

The invention provides a two-time-scale-based user-side energy management method, which can be simultaneously applicable to fluctuation of distributed power generation equipment and demands of power generation, power purchase, power selling, power utilization, energy storage and load regulation of a user, also has low complexity and is easy to operate. A user side comprises the distribution power generation equipment, a load and energy storage equipment, a two-time scale comprises a large time slot and a small time slot, and the large time slot comprises K small time slots. The method comprises the steps of building a total utility function of the user under the large time slot, optimizing load power utilization quantity of the user in the large time slot, service electric quantity and charge-discharge electric quantity of energy storage equipment by taking the optimal total utility function of the user as a target, and regulating the load in the small time slot according to a forecast error of the charge-discharge electric quantity of the energy storage equipment so that the fluctuation of power generation quantity of the distributed power generation equipment is offset, wherein the forecast error is difference between a forecast value and an actual value of the charge-discharge electric quantity of the energy storage equipment in the small time slot.

Description

technical field [0001] The present invention generally relates to the field of energy management under the energy Internet, and specifically relates to a user-side energy management method based on dual time scales. Background technique [0002] With the development of the Energy Internet, the comprehensive coordination and energy sharing of "source, network, load, and storage" within a local area has attracted widespread attention from the industry. In this context, the energy switch is the core device to realize the optimal management and sharing of energy in the local area. [0003] The Yuan Wu, Vincent.K.N.Lau team of the University of Hong Kong optimized the user's power generation and power consumption strategy in the smart building scenario earlier, but did not consider energy transactions between users (including electricity purchase and sale) and energy storage optimization. And other issues. Since then, the team has conducted research on scenarios where user ener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/28
CPCH02J3/008H02J3/28H02J2203/20
Inventor 孙春蕾温向明路兆铭韩曦李洋
Owner BEIJING UNIV OF POSTS & TELECOMM
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