FIELD: electricity.
SUBSTANCE: according to the method, if the main control station of DC voltage stops, subordinate control station of DC voltage takes over management of DC voltage, and the rest converting stations continue to operate in the initial management regimes. The control transmission comprises the following steps: on condition that the inter-station communication means operate, the main control station sends a signal to the slave station to stop operation by means of inter-station communication means, and when the slave station receives data indicating that the main DC voltage control station has stopped operating, the slave station switches from the current control mode to the DC voltage control mode; and provided that the inter-station communication facilities are missing or faulty, the slave receives data on the change in the DC voltage in the multi-terminal DC system, and if the difference in the value of the DC voltage and its nominal value exceeds a certain threshold, the slave station switches from the current control mode to the DC voltage control mode.
EFFECT: increasing the stability and reliability of the multi-terminal electricity transmission system.
9 cl, 4 dwg
Title | Year | Author | Number |
---|---|---|---|
METHOD AND APPARATUS FOR CONTROLLING DIRECT-CURRENT VOLTAGE | 2014 |
|
RU2669004C2 |
METHOD OF CONTROL OF DC VOLTAGE MATCHING | 2018 |
|
RU2736651C1 |
METHOD AND DEVICE FOR CONTROL OF HYBRID SYSTEM OF DIRECT CURRENT TRANSMISSION | 2017 |
|
RU2693530C1 |
METHOD OF FREQUENCY CONTROL ON INVERTER SIDE FOR TRANSMITTING CONSTANT CURRENT | 2015 |
|
RU2661901C1 |
METHOD FOR INHIBITING MULTIPLE CONVERTER STATIONS INTO PASSIVE CONTROL MODE IN ISLAND STATE | 2015 |
|
RU2678429C2 |
METHOD AND DEVICE OF MATCHED CONTROL FOR SERIES GATE GROUPS OF VOLTAGE CONVERTER | 2018 |
|
RU2735440C1 |
INSTALLATION AND METHOD OF CONTROL OF OPERATIONAL INPUT AND OUTPUT IN VOLTAGE SOURCE CONVERTER MODULE | 2017 |
|
RU2714121C1 |
METHOD AND SYSTEM FOR FAULT DETECTION AND RECOVERY OF VOLTAGE CONVERTER | 2017 |
|
RU2692674C1 |
DC HYBRID TRANSMISSION SYSTEM WITH COUNTABLE ON AND POWER FLOW TRANSFER CONTROL IN OPPOSITE DIRECTION | 2017 |
|
RU2679824C1 |
METHOD OF SWITCHING PASSIVE SECTION TO CONNECTION TO POWER SYSTEM | 2015 |
|
RU2674167C2 |
Authors
Dates
2017-08-16—Published
2013-07-01—Filed