A Reactive Power Control Optimization Scheme for the Power Imbalance of Cascaded Photovoltaic Converter

Chu, Wujin; Chen, Min; Jie, Yufei

doi:10.1109/ecce47101.2021.9595312

Cited by 4 publications

(3 citation statements)

References 16 publications

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“…In conclusion, the change from operating as a GUPF to BUPF has no practical effect on the control of the MPST as the impedance of the filter inductors produces a low drop voltage compared with the grid voltage, and the modulation waveform phase is very small, being that GUPF and BUPF are similar strategies, as obtained from Equation (25). The results could be different as a filter inductor is intentionally selected to have a significant impedance at grid frequency.…”

Section: Operation With Ercomentioning

confidence: 97%

“…There are several works that have dealt with this problem previously, see [21][22][23][24][25]. There are two main actions to extend the lineal operation range: the first is to improve the modulation strategy to extend the lineal operation beyond 1 [23], the second group of actions use the reactive power control to prevent the operation in the overmodulation zone.…”

Section: (A) (B)mentioning

confidence: 99%

“…Finally, in [25] a reactive power controller for the power imbalance of a cascaded photovoltaic converter is discussed. Based on the detailed mathematic analysis, the proposed scheme reasonably distributes the reactive power into every power module, improving not only the adaptability of the cascaded photovoltaic converter but also reducing the required reactive power.…”

Section: (A) (B)mentioning

confidence: 99%

See 2 more Smart Citations

Improved Operation Strategy for the High Voltage Input Stage of a Multi-Port Smart Transformer

et al. 2022

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Smart transformers are considered a crucial part of future smart grids as they will operate as the energy router and be able to control the power flows from and to the microgrids since they are placed in the border. A multi-port transformer can integrate different energy resources, loads and energy storage systems, optimizing the power flows between these elements. Combining both concepts, a multi-port smart transformer is obtained that is able to integrate efficiently distributed and renewable energy resources, electric vehicle chargers, prosumers and energy storage in both AC and DC microgrids. Nevertheless, the operation of these transformers, composed of several modules connected in series to the high-voltage grid is not easy, mainly due to the different power consumed or generated by each module. In this paper this issue is analyzed and different operation strategies for coordinating the series-connected modules at the input side are studied by simulation. The paper will expose how it is possible to extend the proper operation of the system if a reactive power controller is implemented.

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Section: Operation With Ercomentioning

confidence: 97%