Active distribution network voltage coordination control system and method based on sensitivity analysis
A technology of active distribution network and sensitivity analysis, applied in the direction of AC network voltage adjustment, reactive power compensation, etc., can solve the problem of high data demand, difficult to coordinate control of active distribution network voltage, and does not consider the interaction of different equipment action time Cooperation and other issues
Active Publication Date: 2021-04-20
SHANGHAI WISCOM SUNEST ELECTRIC POWER TECH
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[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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[0039] In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0040] Active distribution network voltage control is mainly divided into three forms: decentralized voltage control based on regional autonomy, centralized voltage control based on distribution automation master station system, and coordinated voltage control based on hierarchical partitioning. The coordinated voltage control method based on hierarchical and partitioned control can combine the advantages of low logic complexity of decentralized voltage control and global optimization of centralized voltage control, and can realize voltage optimization of active distribution network after large-scale DER grid-connected control and management.
[0041] refer to figure 1 , the active distribution network voltage hierarchical coordination control syst...
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The invention discloses an active distribution network voltage coordination control system and method based on sensitivity analysis, comprising: a voltage exceeding limit target screening module for selecting the node with the largest voltage exceeding the limit in the active distribution network system; according to the voltage sensitivity matrix FCE active power adjustment selection module for selecting the best active power equipment; reactive power equipment selection module for selecting the best reactive power equipment according to the voltage sensitivity matrix; FCE active power adjustment module for completing the delivery of the active power target value; used for completing the reactive power target value The distributed reactive power adjustment module; the collaborative interactive controller used to perform active power PID adjustment and reactive power PID adjustment on the intelligent manager for the active power target value and reactive power target value, and complete the fast calculation of FCE control; An intelligent management controller for setting the active target value of active equipment and reactive equipment respectively. The invention meets the requirements of the multi-objective coordinated optimization control of the 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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IPC IPC(8): H02J3/12H02J3/16
CPCH02J3/12H02J3/16Y02E40/30
Inventor王丰朱聪聪凌万水
OwnerSHANGHAI WISCOM SUNEST ELECTRIC POWER TECH