A control method for current source converter without grid voltage sensor
A technology for converter control and grid voltage, applied in single-network parallel feeding arrangement, AC network to reduce harmonics/ripples, harmonic reduction devices, etc., can solve problems such as complex control structure and the need for voltage sensors
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[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments.
[0032] according to figure 1 As shown, a control method of a current source converter without a grid voltage sensor of the present application includes: the fourth parameter I d , the fifth parameter L, the sixth parameter C, the a-phase current value I a , b-phase current value I b , c-phase current value I c , where L=L 1 =L 2 =L 3 , C=C 1 =C 2 =C 3 .
[0033] DC side large inductance L 4 , L 5 Instead of a current source, flow through a large inductor L 4 , L 5 The current is the fourth parameter I d .
[0034] according to figu...
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