Event-driven automatic demand response method considering uncertainty for microgrid

An event-driven, demand-response technology, applied in the direction of AC network load balancing, single-network parallel feeding arrangement, etc., can solve the problems of wind and solar output prediction errors, poor economy, and inability to carry out fully autonomous control.

Active Publication Date: 2018-01-19
ZHEJIANG UNIV OF TECH
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Problems solved by technology

[0004] In order to overcome the shortcomings of the existing micro-grid control methods that cannot be completely autonomously controlled and have poor economic efficiency, the present invention proposes an event-driven automatic demand response method for micro-grids that considers uncertainty. Due to the randomness of the user's electricity consumption behavior and the errors in wind and solar output prediction, a household microgrid (RMG) model is constructed, and a microgrid-based The new electricity price mechanism for gene

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  • Event-driven automatic demand response method considering uncertainty for microgrid
  • Event-driven automatic demand response method considering uncertainty for microgrid
  • Event-driven automatic demand response method considering uncertainty for microgrid

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[0111] The present invention will be further described below in conjunction with the drawings.

[0112] Reference Figure 1 ~ Figure 6 , An event-driven automatic demand response method for microgrids that considers uncertainty, including the following steps:

[0113] S1: System initialization, discretize the continuous time, and the optimization period is divided into J periods, and the duration of each period is Δt. For any k-th period, there is k={k 0 ,k 0 +1,…,K}, where k 0 Indicates the current sampling point, K indicates the last sampling point, and K≤J; the initial sampling point k 0 =1;

[0114] S2: Comprehensively analyze the load demand response characteristics of the household microgrid and construct a system model.

[0115] Further, in the step S2, the household microgrid is composed of a power supply unit composed of a wind turbine and a photovoltaic array, a controllable power consumption unit combined with an electric vehicle (EV) and an adjustable load, a core control...

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Abstract

An event-driven automatic demand response method considering uncertainty for a microgrid comprises the steps of discretizing continuous time; analyzing load demand response characteristic of a user-type microgrid, and building a system model; constructing a new real-time power price mechanism combining real-time electric price RTP and time-out-use power price IBR, and calculating to obtain power price of a current time frame k by the power price mechanism; judging whether each event is triggered or not by the system according to an automatic demand response (ADR) strategy of the even-driven mechanism, and performing on-line energy optimization on a terminal user in a RMG according to a preset priority handling event; transferring optimization time to a next moment after optimization is completed, and repeating the previous optimization steps until full-time optimization is completed. Power utilization behavior of an active load is effectively guided by economic excitation, an emergencysituation can be efficiently and timely handled, and the impact to the system caused by fluctuation new energy output also can be reduced by reasonably guiding the power utilization behavior of the active load.

Description

technical field [0001] The invention belongs to the field of household energy local area network management, and in particular relates to an event-driven micro-grid automatic demand response method considering uncertainty. Background technique [0002] Driven by the adjustment of the global energy structure, new energy and demand-side management technologies have developed rapidly. In the future, smart buildings and smart homes will widely introduce renewable energy, energy storage systems and intelligent controllable loads, especially electric vehicles (EVs). How to efficiently use new energy and realize the independent supply and demand balance in smart buildings has become the focus of current research. an important subject. [0003] Since energy consumption in buildings accounts for nearly 40% of the total global energy, energy control in residential microgrids (RMGs) has become a research hotspot in recent years. In RMG, the power consumption behavior of each user is ...

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Application Information

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IPC IPC(8): H02J3/40H02J3/32
Inventor 张有兵杨晓东王国烽吴杭飞徐向志李祥山黄飞腾翁国庆
Owner ZHEJIANG UNIV OF TECH
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