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Island heuristic load reduction model construction method for active power distribution network

A technology of load reduction model and construction method, which is applied in data processing applications, instruments, computing, etc., and can solve the problems of enumeration method for long time and computing memory.

Inactive Publication Date: 2016-03-16
STATE GRID CORP OF CHINA +3
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Problems solved by technology

[0006] Since the output and load of distributed power sources in the island change in real time, and the maximum power provided by the battery at each moment depends on the result of load reduction, the problem of load reduction cannot be solved by analytical methods
The enumeration method requires a long time and computational memory

Method used

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  • Island heuristic load reduction model construction method for active power distribution network
  • Island heuristic load reduction model construction method for active power distribution network
  • Island heuristic load reduction model construction method for active power distribution network

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Embodiment Construction

[0071] The construction method of the active distribution network-oriented intra-island heuristic load reduction model of the present invention will be described in detail below with reference to the embodiments and the accompanying drawings.

[0072] The construction method of the active distribution network-oriented island heuristic load reduction model of the present invention comprises the following steps:

[0073] 1) Construct the component model during island operation, including fan output model, photovoltaic output model, load model and battery model; when the active distribution network is in island operation mode, the internal components of the island include renewable distributed power sources such as wind turbines and photovoltaics, and Battery, load, etc., building its component model is the premise of building a load reduction model. in:

[0074] The construction of the fan output model includes:

[0075] (1) Using the time series ARMA model to simulate the tim...

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Abstract

Disclosed is an island heuristic load reduction model construction method for an active power distribution network. The method comprises the following steps: constructing element models when an island runs, including a blower fan output model, a photovoltaic output model, a load model and a storage battery model; constructing a load reduction model; and solving an island load reduction model. According to the invention, the island heuristic load reduction model construction method for the active power distribution network is fast in operation speed and small in occupied memory, is used for rapidly determining a load reduction strategy, helps to improve the operation reliability of the active power distribution network, guarantees uninterrupted power supply of an important load, facilitates utilization of a renewable distributed power source, saves fossil energy and protects the ecological environment.

Description

technical field [0001] The invention relates to a load shedding model for reliable operation of a power system. In particular, it relates to a construction method of an active distribution network-oriented intra-island heuristic load reduction model for determining a load reduction strategy in the case of insufficient power supply when the distribution network operates in an isolated island. Background technique [0002] In recent years, with the increasingly serious resource and environmental problems in our country, the distributed power generation characterized by resource conservation and environmental friendliness has been vigorously developed, and more and more are connected to the existing distribution network. The introduction of distributed power generation has improved the flexibility, economy and environmental protection of traditional distribution network, but it will also change the fault operation mode and reliability evaluation method of traditional distributi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
CPCG06Q50/06Y04S10/50
Inventor 杨晓梅刘洪归三荣赵宏大王哲李琥韩俊万鹭史小燕邵梦虞王颖史静戚博硕孙昊
Owner STATE GRID CORP OF CHINA
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