Synchronous phasor measurement configuration method for distribution network taking topology change in consideration
A technology of topology change and configuration method, applied in circuit devices, electrical components, AC network circuits, etc., can solve problems such as the inability to guarantee the optimality of the solution, and the inability to guarantee the optimality of the configuration scheme of the synchrophasor measurement device. Guaranteed effect of observability
Active Publication Date: 2018-11-20
TIANJIN UNIV +1
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Although the intelligent optimization algorithm has the advantage of solution speed in some cases, it cannot guarantee the optimality of the solution, and thus cannot guarantee the optimality of the configuration scheme of the synchrophasor measurement device
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[0047] The method proposed by the present invention is verified by the IEEE 33 node calculation example, and the network topology connection relationship of the IEEE 33 node calculation example is as follows figure 2 As shown, the black dotted lines in the figure represent the tie switches TS1~TS5, and the other black solid lines represent the section switches.
[0048] In order to verify the advanced nature of the method of the present invention, the following four scenarios are taken for analysis:
[0049] Scenario 1: There is no tie switch in the network topology;
[0050] Scenario 2: There is only tie switch TS1 in the network topology;
[0051] Scenario 3: There are tie switches TS1, TS2 and TS3 in the network topology;
[0052] Scenario 4: There are all tie switches in the network topology.
[0053] The configuration scheme of Scenario 1 is shown in Table 1, and the configuration scheme of Scenario 2 is shown in Table 2. The value in the "Whether to configure" column i...
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A synchronous phasor measurement configuration method for a distribution network taking topology change in consideration is disclosed. The topology connection relationship of the distribution networkis obtained, and the positions of all switches including connection switches and section switches in the distribution network are obtained. According to the topological connection relationship of thedistribution network, all loops in the network are found when all the switches are switched on, and the nodes and branches on the loops are determined. The nodes and branches on the ring form a new subnetwork, and the degree of each node in the subnetwork is calculated to construct an association matrix weighted by the degrees of the nodes of the switch. Based on the weighted incidence matrix of switch node degrees, the 0-1 integer programming model is constructed according to the synchronous phasor measurement configuration for the distribution network taking topology change in consideration;solution of the 0-1 integer programming model is solved, and the configuration scheme of the synchronous phasor measurement device is obtained. The invention can effectively cope with the change of the switching state of the distribution network in operation, obtain an economical and reasonable configuration scheme, and ensure the observability of the distribution system in all connected states.
Description
technical field [0001] The invention relates to a synchronization phasor measurement configuration method. In particular, it relates to a distribution network synchronized phasor measurement configuration method considering topology changes. Background technique [0002] With the continuous development and application of smart distribution network technology, the operation monitoring level of distribution network has been greatly improved. The synchronized phasor measurement device can collect the measurement data of the node voltage and branch current in the power system, realize the simultaneous measurement of the magnitude and phase angle of the quantity measurement, and compare with the traditional measurement, the accuracy is higher. Therefore, configuring a certain number of synchronized phasor measurement devices in the distribution network can further improve the measurement level of the distribution network and provide data support for the solution of distribution ...
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IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20Y02E40/70Y02E60/00Y04S10/22
Inventor王成山宿洪智李鹏刘喆林宋关羽赵金利于力
OwnerTIANJIN UNIV