发明公开
- 专利标题： METHOD AND CONTROL DEVICE FOR CONTROLLING POWER FLOW WITHIN A DC POWER TRANSMISSION NETWORK
- 专利标题（中）： 方法和设备潮流控制在直流输电网络
-
申请号： EP10731497.3申请日： 2010-06-30
-
公开(公告)号： EP2589128A1公开(公告)日： 2013-05-08
- 发明人: BERGGREN, Bertil , MAJUMDER, Rajat , SAO, Charles , LINDEN, Kerstin
- 申请人： ABB Research Ltd.
- 申请人地址： Affolternstrasse 44 8050 Zürich CH
- 专利权人： ABB Research Ltd.
- 当前专利权人： ABB Research Ltd.
- 当前专利权人地址： Affolternstrasse 44 8050 Zürich CH
- 代理机构： Ahrengart, Kenneth
- 国际公布： WO2012000549 20120105
- 主分类号： H02J3/36
- IPC分类号： H02J3/36 ; H02J1/10 ; H02J1/14
摘要：
The invention relates to a method (80) for controlling power flow within a DC power flow within a DC power transmission network (1) comprising two or more interconnected converter stations (10
a , 10
b , 10
c , 10
d , 10
e ). The method (80) comprises the steps of: establishing a common feedback signal (U
d,common ,
Ũ
d'common ) to the converter stations, the common feedback signal (U
d,common , Ũ
d',common ) being based on an overall voltage level in the DC transmission, power network (1); providing, in the converter stations, a control signal (S
1 , S
2 , S
3 , S
4 ) based on the common feedback signal (U
d,common ) and a drooped error signal (P
e, droop , U
e, droop ); and controlling the power flow within the DC power transmission network (1) towards set operating points ( U
d
ref ,
PCC
ref by using the control signal (S
1 , S
2 , S
3 , S
4 ). The invention also relates to a control device ( 18
a , 18
b , 18
c , 18
d , 18
e ) and computer program products.
a , 10
b , 10
c , 10
d , 10
e ). The method (80) comprises the steps of: establishing a common feedback signal (U
d,common ,
Ũ
d'common ) to the converter stations, the common feedback signal (U
d,common , Ũ
d',common ) being based on an overall voltage level in the DC transmission, power network (1); providing, in the converter stations, a control signal (S
1 , S
2 , S
3 , S
4 ) based on the common feedback signal (U
d,common ) and a drooped error signal (P
e, droop , U
e, droop ); and controlling the power flow within the DC power transmission network (1) towards set operating points ( U
d
ref ,
PCC
ref by using the control signal (S
1 , S
2 , S
3 , S
4 ). The invention also relates to a control device ( 18
a , 18
b , 18
c , 18
d , 18
e ) and computer program products.
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