Active power distribution network situation awareness system and method based on distributed monitoring and multi-source information fusion

Abstract

The present invention discloses an active power distribution network situation awareness system and method based on distributed monitoring and multi-source information fusion. The system includes a multi-source information fusion unit, a source load prediction unit, a distribution network power flow analysis unit, a power distribution network state estimation unit, a power distribution network risk analysis and early warning unit and a situation display visualization unit. The method comprises the following steps that: 1) fusion analysis is performed on a plurality of kinds of information of a distributed monitoring system and a data interaction bus; 2) on the basis of fusion information and user behavior prediction, distributed power source prediction and feeder-level load prediction are carried out; 3) power distribution network state estimation is carried out according to real-time measurement data and load prediction data; 4) on the basis of a source load prediction result and a power distribution network state estimation result, distributed power source-containing power distribution network power flow analysis is carried out; 5) risk quantitative analysis and early warning for various kinds of operation scenes are carried out through using a multi-attribute risk assessment method on the basis of the operation power flow and operating state of a power distribution network; and 6) the operating state and situation change of the power distribution network are displayed in an overall and detailed parallel display manner.

Description

technical field [0001] The invention relates to the technical field of active distribution system operation control, in particular to an active distribution network situation awareness system based on distributed monitoring and multi-information fusion. Background technique [0002] With the high-density access of large-scale distributed power, electric vehicles, flexible loads and energy storage equipment to the distribution network, the distribution network has changed from "passive" to "active", and the trend has changed from "one-way" to "multiple" This brings uncertain risks to the operation of the distribution network. The upgrading task of accelerating the intelligent and active transformation of the distribution network is very urgent. The emergence of active distribution network technology provides the possibility to solve the above problems. [0003] Due to the lack of global awareness of source, network and load and situational warning on a time scale, the current...

AI Technical Summary

Problems solved by technology

[0003] Due to the lack of global awareness of source, network and load and situational warning on a time scale, the current distribution network operation cannot meet the requirements of coordinated operation, active control and active management of active distribution network

The prerequisite for realizing the coordinated operation and active control of the network source and load of the active distribution network is to ensure the observability of the distribution network. However, the current distribution automation system only monitors the operation status of the entire feeder, and the monitoring data of the whole scene is less , and with the large-scale access of distributed renewable energy and electric vehicles, its randomness and intermittency bring many risks to the operation of the distribution network, which requires observability on a certain time scale

Images