An intelligent dispatching method for active distribution network

Abstract

The invention discloses an intelligent scheduling method for an active power distribution network. The method comprises the following steps: controlling an actual power grid to be run according to the basic grid structure of the determined power grid; forecasting economic loss according to load; according to the economic loss, to obtain unit generation compensation fee and unit load compensation fee, and sending the compensation fee to an intelligent device. The method is capable of, based on the intelligent device installed in the power distribution network, on the basis of a power scheduling principle of local balance, and under the situation of considering the load capacity and the possible economic loss, enabling an electric power system not to change the power grid major structure under the situation of satisfying the economy principle through the power distribution network user side for actively executing the power scheduling, and enabling the electric power system to be located in the most economical safe and stable operation state as possible for a long time.

Description

technical field [0001] The invention relates to an intelligent scheduling method of an active power distribution network, in particular to a method for realizing safe and stable operation of a power system through the user side of the distribution network that actively performs power scheduling. Background technique [0002] The traditional distribution network is a passive distribution network. The power produced by the power plant flows through the transmission network and is sent to the user through the distribution network. The distribution network is a passive load of the power system. At the same time, since the supply and demand of electric power must be in a balanced state in real time, the frequently changing passive load leads to frequent output changes or even start-up and stop of power generating devices such as power plants, frequent opening and closing of contact switches on the line, and frequent uneconomical conditions of the line. The over-current or light-l...

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Problems solved by technology

However, the pumped storage unit has a climbing speed limit, and frequent start and stop will also shorten the service life of the unit. At the same time, the introduction of batteries, super capacitors, etc. requires the addition of a lot of converter equipment, which requires real-time operation and maintenance. In addition , these energy storage devices can only be installed in one or a few important nodes of the power system, and the flow of electricity from the important node where the energy storage device is installed to other nodes that need to be balanced also needs to flow through the necessary lines, which is inevitable Causes excessive line loss and may lead to overloading of the line at the same time

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