Transient stability emergency control method and device considering direct current successive locking time difference, and storage medium
A DC blocking and emergency control technology, applied in the direction of AC network voltage regulation, climate sustainability, information technology support system, etc. Real-time performance, the effect of reducing the number of trials and calculations
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0044] This embodiment introduces a transient stability emergency control method considering the time difference of DC successive blocking, refer to figure 1 , methods include:
[0045] Acquiring pre-determined independent event time difference range data corresponding to different DC successive blocking sequences;
[0046] In response to the occurrence of DC sequential blocking faults in the power grid, obtaining the sequential blocking time difference between the previous blocking time and the subsequent blocking time in the DC sequential blocking fault;
[0047] According to the DC successive blocking sequence of DC successive blocking faults, the time difference range of independent events to be referred to is selected, and it is judged whether the successive blocking time differences of actual DC successive blocking faults are within the time difference range of selected independent events;
[0048] If the sequential blocking time difference is within the range of the co...
Embodiment 2
[0074] Based on the same inventive idea as Embodiment 1, this embodiment introduces a transient stability emergency control device considering the time difference of DC successive blocking, including:
[0075] The independent event time difference range acquisition module is configured to obtain the predetermined independent event time difference range data corresponding to different DC successive blocking sequences;
[0076] The sequential blocking time difference acquisition module is configured to acquire the sequential blocking time difference between the previous blocking time and the post-blocking time in the DC sequential blocking fault in response to the occurrence of a DC sequential blocking fault in the power grid;
[0077] The successive blocking time difference judging module is configured to judge whether the successive blocking time difference is within the corresponding independent event time difference range according to the DC successive blocking sequence of th...
Embodiment 3
[0094] Based on the same inventive concept as in Embodiment 1, this embodiment introduces a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the temporary DC blocking time difference considered in Embodiment 1 is realized. state stability emergency control method.
[0095] To sum up the above embodiments, the present invention identifies the most serious DC successive blocking time difference under different fault occurrence modes by studying the image trajectory of the equivalent generator after DC blocking, and the time difference that can analyze the consecutive blocking events as two independent events, thereby formulating The emergency control measures after DC sequential blocking under different time difference ranges can improve the efficiency and reliability of emergency control when used in the emergency control of actual DC sequential blocking faults, and improve the effectiveness and real-ti...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More