An active distribution network voltage coordination control system and method based on sensitivity analysis

Abstract

The invention discloses an active distribution network voltage coordination control system and method based on sensitivity analysis. The system comprises: a voltage overrun target screening module forselecting a node with the largest voltage overrun in the active distribution network system; ; a FCE active power regulation selection module for selecting the best active power device according to the voltage sensitivity matrix; a reactive power equipment selection module for seleting the optimal reactive power equipment according to the voltage sensitivity matrix; an FCE active power regulatingmodule for completing the distribution of the active power target value; a reactive power regulating module for completing reactive power target value transmission; a synergistic interactive controlis used for carrying out active PID regulation and reactive PID regulation on an intelligent manager according to an active target value and a reactive target value, respectively, and completing fastcomputation of FCE control; an intelligent management controller is used for setting the active power target value of the active power equipment and the reactive power equipment respectively. The invention achieves the requirements of multi-objective coordination and optimization control of an active distribution network.

Description

technical field [0001] The invention belongs to the technical field of voltage coordination control of an active distribution network, and in particular relates to a system and method for a voltage coordination control of an active distribution network based on sensitivity analysis. Background technique [0002] At present, the voltage coordination control of active distribution network has become a hot research topic in the industry, but most of the proposed voltage coordination control methods for active distribution network are mainly based on the optimization theory of optimization coordination, which requires coordinated control of all reactive power sources And voltage regulation equipment, the demand for data is high, and the interaction time of different equipment is not considered, so it is difficult to be practically applied to the voltage coordination control of the active distribution network. At the same time, due to the large resistance-reactance ratio (R / X) of...

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Problems solved by technology

[0002] At present, the voltage coordination control of active distribution network has become a hot research topic in the industry, but most of the proposed voltage coordination control methods for active distribution network are mainly based on the optimization theory of optimization coordination, which requires coordinated control of all reactive power sources And voltage regulation equipment, the demand for data is high, and the mutual cooperation of different equipment action times is not considered, so it is difficult to be practically applied to the voltage coordination control of the active distribution network

At the same time, due to the large resistance-reactance ratio (R / X) of the distribution network, it is impossible to adopt the decoupling method of voltage control and active power control like the transmission network. When controlling the voltage, the influence of active power and reactive power must be considered at the same time for coordinated control.

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