DSVPWM-based PMSG parallel GS-NSC system
A GS-NSC, parallel technology, applied in output power conversion devices, harmonic reduction devices, AC networks to reduce harmonics/ripples, etc., can solve the problem of reducing the active power output of the grid, improve power quality, reduce Active power loss, effect of reducing switching loss
Pending Publication Date: 2022-01-28
INNER MONGOLIA POWER GRP +1
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Abstract
The invention discloses a DSVPWM-based PMSG parallel GS-NSC system, which comprises a box-type transformer W1, a circuit breaker K, an isolation transformer W2, a main grid side converter channel A, an auxiliary grid side converter channel B, a parallel grid side nine-switch converter, an unloading circuit and a PWM circuit, wherein one end of the box-type transformer W1 is connected with a power grid, and the other end of the box-type transformer W1 is connected with the main grid side converter channel A and the circuit breaker K; the other end of the main grid side converter channel A is connected with the parallel grid side nine-switch converter, and the other end of the circuit breaker K is connected with the isolation transformer W2. By adopting the DSVPWM, the NSC direct current bus voltage utilization rate is improved by 15.5%, the switching frequency is reduced by about 22%, and the switching loss is effectively reduced.
Application Domain
Ac-dc conversionSingle network parallel feeding arrangements +2
Technology Topic
Embedded systemPower grid +7
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