Optimal operation method of main transformers based on economic equivalent analysis

A main transformer, optimized operation technology, applied in the direction of single-network parallel feeding arrangement, AC network circuit, electrical components, etc., can solve the problem that the transformer is not a perfect economic operation, not a complete and comprehensive economic operation, to ensure rapidity and efficiency. Convergence, ensuring scientificity and correctness, and ensuring the effect of convenience

Active Publication Date: 2011-11-16
JIYUAN POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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Problems solved by technology

Therefore, the economic operation of transformers mentioned at present is not a p

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  • Optimal operation method of main transformers based on economic equivalent analysis
  • Optimal operation method of main transformers based on economic equivalent analysis
  • Optimal operation method of main transformers based on economic equivalent analysis

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Embodiment Construction

[0042] Such as figure 1 , figure 2 Shown, the present invention comprises the following steps:

[0043] Step 1, the power grid economic operation auxiliary decision-making system acquires power grid operation data in real time from the SCADA system and the electric energy meter centralized reading system through the data interface. The present invention connects with SCADA system as figure 1 shown. Because it is mainly used by dispatchers on duty to adjust the power grid operation mode in real time to reduce power grid loss, when the auxiliary decision-making system for power grid economic operation in the present invention is directly connected to the SCADA system, the operation mode and line loss professional management workstation pass through the secondary protection system isolation. It should be noted that standard telecontrol protocols such as the 104 protocol can be used to obtain real-time grid operation data during connection.

[0044]Then use the IEC61970 stan...

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Abstract

The invention discloses an optimal operation method of main transformers based on economic equivalent analysis, which comprises the following steps of: 1, acquiring power grid operation data in real time by using a power grid economic operation assistant decision-making system, and maintaining and updating the power grid operation data; 2, estimating the operation condition of a power grid by using the power grid economic operation assistant decision-making system according to the acquired power grid operation data; 3, analyzing the loss of the main transformer of each electric power substation in the power grid; 4, analyzing the loss of the whole power grid; 5, comparing and analyzing the estimated value of the whole power grid condition and a load flow calculation value obtained in the step 4 with the power grid operation data acquired from an SCADA (Supervisory Control and Data Acquisition) system and a remote meter reading system in real time to obtain an operation scheme with theminimum main transformer loss; 6, making a decision with the power grid economic operation assistant decision-making system by using an expert system; and 7, adjusting the switching condition of eachmain transformer in the power grid by using the SCADA system.

Description

technical field [0001] The invention belongs to the field of optimal configuration of electric power systems, and in particular relates to an operation method for optimizing a main transformer on the basis of analyzing the economic equivalent. Background technique [0002] In the prior art, there are the following concepts: [0003] Reactive economic equivalent, it is to convert reactive current into active current, so that the loss caused by reactive current can be easily calculated. [0004] The economic equivalent is composed of the increase in income brought about by the improvement of the reliability of power grid power supply under disturbance conditions and the ancillary service fees that need to be paid to meet such security measures. Whether a certain security indicator in the traditional power system will be implemented in the market environment and to what extent will depend on its economic equivalent value. Only when its economic equivalent value is greater than...

Claims

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Application Information

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IPC IPC(8): H02J3/00H02J3/38H02J13/00
CPCY04S10/12Y02E40/76Y04S10/40Y02E40/72Y04S10/545Y02E40/70Y04S10/50
Inventor 李广河郝福忠赵锋周玲秦晓军吴建郭光王直刘洪亮闫辉牛迎水丁晓群王兆亮
Owner JIYUAN POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER
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