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Layered and distributed optimal scheduling method for active power distribution network considering frequency modulation standby benefit

A technology of active distribution network and optimal scheduling, applied in electrical components, circuit devices, AC network circuits, etc., can solve the problems of unit information privacy limitation, high communication burden, aggregation flexibility division, etc., to ensure privacy, The effect of reducing the computational burden and having excellent robustness

Pending Publication Date: 2022-03-22
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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Problems solved by technology

[0004] At present, the existing research on the joint optimal dispatching method of the distribution network considers the reserve capacity provided by the distribution network as a whole, does not consider the differences in the flexibility characteristics of different distributed resources, and does not further divide the flexibility of aggregation
In addition, the centralized scheduling mode has a high communication burden in the face of a large number of DER units, and there are also limitations in terms of unit information privacy.

Method used

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  • Layered and distributed optimal scheduling method for active power distribution network considering frequency modulation standby benefit
  • Layered and distributed optimal scheduling method for active power distribution network considering frequency modulation standby benefit
  • Layered and distributed optimal scheduling method for active power distribution network considering frequency modulation standby benefit

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Embodiment

[0046] The present invention provides a hierarchical distributed optimal scheduling method for an active distribution network that takes into account the benefits of frequency modulation backup. The method includes the following steps:

[0047] Step 1. Construct a hierarchical distributed dispatching architecture based on the interactive energy mechanism, and model the dispatching system of the active distribution network as a multi-agent system including a coordination dispatching layer and a cluster autonomy layer, with continuous information interaction between the upper and lower layers , to obtain the optimal scheduling result;

[0048] Step 2. Use flexibility features to realize the mapping between distributed resources and frequency modulation auxiliary service sets, use flexibility features to characterize the ability of distributed resources (DER) to respond to frequency modulation auxiliary service requests, and evaluate the matching of distributed resources and frequen...

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Abstract

The invention relates to an active power distribution network layered and distributed optimal scheduling method considering frequency modulation standby benefits. The method comprises the following steps: 1) constructing a layered and distributed scheduling architecture based on an interactive energy mechanism; 2) representing the capability of the distributed resource in response to the frequency modulation auxiliary service request by using the flexibility characteristic, evaluating the matching degree of the distributed resource and the frequency modulation auxiliary service, and mapping the distributed resource to the frequency modulation auxiliary service; and 3) constructing a joint optimization scheduling model considering the frequency modulation reserve income, and solving by adopting a discrete consistency algorithm to obtain an optimal scheduling scheme. Compared with the prior art, the method has the advantages that flexibility and frequency modulation benefits of distributed resources are fully mined, privacy is guaranteed, and calculation burden is relieved.

Description

technical field [0001] The invention relates to the technical field of distributed optimal dispatching of an active distribution network, in particular to a layered distributed optimal dispatching method of an active distribution network taking into account frequency modulation backup benefits. Background technique [0002] China has formulated a new climate goal of achieving "carbon peak" by 2030 and "carbon neutrality" by 2060, and building a new power system with new energy as the mainstay. In the process of transforming to a new type of power system, the volatility, intermittency and uncertainty of new energy power generation put forward higher demands on the frequency regulation reserve capacity of the power grid, while the relative reduction of the proportion of traditional generator sets means that the available frequency regulation reserve capacity reduce. Distributed resources such as distributed generation (DG), energy storage (ES) and flexible load (FL), as a sou...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/24H02J3/46H02J3/28
CPCH02J3/241H02J3/466H02J3/28H02J2203/20H02J2203/10
Inventor 边晓燕董璐尹欣宇梁思琪许凌徐波赵耀崔勇
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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