- Patent Title: Method and a control device for controlling a power converter configured to form a frequency droop value based on electric power supplied to alternating current system
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Application No.: US17182612Application Date: 2021-02-23
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Publication No.: US11831231B2Publication Date: 2023-11-28
- Inventor: Antti Summanen , Antti Tarkiainen
- Applicant: Danfoss Editron Oy
- Applicant Address: FI Lappeenranta
- Assignee: Danfoss Editron Oy
- Current Assignee: Danfoss Editron Oy
- Current Assignee Address: FI Lappeenranta
- Agency: McCormick, Paulding & Huber PLLC
- Priority: EP 159044 2020.02.24
- Main IPC: H02M1/00
- IPC: H02M1/00 ; G05B6/02 ; H02J13/00

Abstract:
A control device (101) for controlling a power converter (109) is configured to form a frequency droop value based on electric power supplied by the power converter to an alternating current system, decrease a frequency control value by the frequency droop value, form a power control value based on a target value of the electric power, increase the frequency control value by the power control value, and supply the frequency control value to the power converter to control alternating voltage frequency of the power converter. The electric power is driven to a value at which a combined effect of the frequency droop value and the power control value makes the alternating voltage frequency of the power converter to be the same as operating frequency of the alternating current system. Thus, the electric power can be controlled by changing the power control value.
Public/Granted literature
- US20210265906A1 METHOD AND A CONTROL DEVICE FOR CONTROLLING A POWER CONVERTER Public/Granted day:2021-08-26
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