Voltage control system and method for grid-connected point of microgrid based on power coordinated regulation
A point voltage control, micro grid technology, applied in AC network voltage adjustment, reducing/preventing power oscillation, reactive power compensation, etc. The effect of small power loss and burden reduction
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0068] This embodiment provides a microgrid grid-connected point voltage control system based on power cooperative regulation.
[0069] The voltage control system at the grid-connected point of the microgrid based on power coordinated regulation is suitable for the microgrid under grid-connected conditions, including: a voltage stabilization compensation current loop, which compares the instantaneous amplitude of the voltage at a given point PCC with a given voltage amplitude reference value The difference is sent to the voltage regulator compensation current loop;
[0070] The signal adjusted by the first PI regulator in the voltage stabilization compensation current loop is added with the signal output by the active current loop to obtain the active current reference value;
[0071] The difference between the active current reference value and the given d-axis current value is input to the second PI regulator, the output signal is sent to the SPWM pulse width modulation modu...
Embodiment 2
[0101] This embodiment provides a method for controlling the voltage of a grid-connected point of a microgrid based on power cooperative regulation.
[0102] The method for controlling the voltage of the grid-connected point of the microgrid based on the power cooperative adjustment adopts the voltage control system of the grid-connected point of the microgrid based on the power cooperative adjustment described in the first embodiment, including:
[0103] Voltage at the grid connection point When fluctuations occur, the current on the line The voltage difference across the line impedance Z is make the voltage at PCC become
[0104] Three-phase full-bridge voltage grid-connected inverter needs to output power compensation current This power compensation current creates a new voltage difference on the line Restore the voltage at the PCC to steady state place.
[0105] The invention adopts a three-phase full-bridge voltage grid-connected inverter, and performs Park tr...
Embodiment 3
[0115] This embodiment provides a method for controlling the voltage of a grid-connected point of a microgrid based on power cooperative regulation.
[0116] The method for controlling the voltage of the grid-connected point of the microgrid based on the power cooperative adjustment adopts the voltage control system of the grid-connected point of the microgrid based on the power cooperative adjustment described in the first embodiment, including:
[0117] When the power factor λ of the microgrid at the PCC is not lower than the specified value λ * hour,
[0118] The power compensation current Decomposed into active current compensation components and reactive current compensation components Calculate the compensation current power factor angle β;
[0119] Make the compensation current power factor angle β equal to the line impedance angle α, and the three-phase full-bridge voltage grid-connected inverter outputs the reactive power compensation current to restore the pow...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com