Invention Grant
- Patent Title: Frequency control method for micro-grid and control device
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Application No.: US15375246Application Date: 2016-12-12
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Publication No.: US10359750B2Publication Date: 2019-07-23
- Inventor: Wenchuan Wu , Boming Zhang , Hongbin Sun , Zhongguan Wang , Qinglai Guo , Bin Wang
- Applicant: Tsinghua University
- Applicant Address: CN Beijing
- Assignee: TSINGHUA UNIVERSITY
- Current Assignee: TSINGHUA UNIVERSITY
- Current Assignee Address: CN Beijing
- Agency: Hodgson Russ LLP
- Priority: CN201610243740 20160418
- Main IPC: G05B19/042
- IPC: G05B19/042 ; H02J3/00 ; H02J3/38

Abstract:
The present disclosure provides a frequency control method for a micro-grid and a control device. The method includes: determining a middle parameter at iteration k; determining a local gradient parameter at iteration k according to the cost increment rate at iteration k, the frequency difference between iterations k and k+1, and communication coefficients; performing a quasi-Newton recursion according to the middle parameter and local gradient parameter to acquire a recursion value; determining the cost increment rate at iteration k+1 according to the recursion value; determining an adjustment value of an active power according to the cost increment rate at iteration k+1; adjusting the active power according to the adjustment value if the adjustment value satisfies a constraint condition and judging whether the difference is smaller than a predetermined threshold; executing k=k+1 if yes and stopping the frequency control if no.
Public/Granted literature
- US20170300021A1 FREQUENCY CONTROL METHOD FOR MICRO-GRID AND CONTROL DEVICE Public/Granted day:2017-10-19
Information query
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