Precise batch control system for UHV DC blocking receiving end load

Abstract

The invention discloses an extra-high voltage direct-current locking receiving end load accurate batch control system. The system comprises a transformer substation monitoring system and a first regulation master station connected with the transformer substation monitoring system through a dispatching data network, wherein the first regulation master station is connected with an information publishing server and a second regulation master station through network cables respectively; the second regulation master station is used for sending a control command issued through load batch control to the first regulation master station; the first regulation master station is used for analyzing the control command into load capacity cutting processing, batch control canceling command processing or batch control execution command processing, and then the transformer substation monitoring system is controlled to carry out corresponding processing. The functional design of the system is flexible, and various application requirements can be met. Load batch rapid control after the absence of high power of an extra-high voltage direct-current receiving end is primarily realized, and the system is also applicable for emergency circuit-braking and current-limiting and load rapid control requirements under the conditions such as grid faults and natural disasters.

Description

【Technical field】 [0001] The invention relates to the field of power system control, in particular to an ultra-high voltage direct current blocking receiving end load precise batch control system. 【Background technique】 [0002] The large-scale promotion and application of UHV DC transmission technology has realized long-distance and large-capacity power transmission. Once DC blocking occurs, it will cause serious problems such as frequency drop, large voltage change, and equipment overload of the receiving-end grid. Emergency response to the receiving-end grid Responsiveness raises higher goals and demands. The load control function of the existing dispatching system is relatively simple, the response speed is slow, and it does not meet the precise control and security management and control requirements of the smart grid. Guided by "ensuring engineering safety and improving engineering economy", domestic manufacturers continue to carry out in-depth research on key technol...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems existing in the prior art, the present invention provides an accurate batch control system for UHV DC blocking receiving end loads, which is used to solve the frequency drop, large voltage change, equipment overload, etc. caused by UHV DC blocking to the receiving end power grid. question

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