Microgrid energy storage PCS control system and method
A control system and micro-grid technology, applied in the direction of AC network load balancing, etc., can solve the problems of low control gain, low power control precision, and control algorithm that is difficult to meet the requirements of stability and high precision at the same time, to achieve high power control accuracy, Effect of Improving Current Control Accuracy
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0046] combine figure 1 with figure 2 As shown, the microgrid energy storage PCS control system of this embodiment includes: an LCL filter circuit, a three-phase bridge inverter circuit, a DC EMI filter circuit and a control module; the input terminal of the three-phase bridge inverter circuit passes through the DC EMI The filter circuit is connected to the battery, and the output terminal is connected to the three-phase power grid through the LCL filter circuit;
[0047] The output end of the three-phase bridge inverter circuit is respectively provided with a current sensor and a voltage sensor on the three-phase line, and the output ends of each current transformer and voltage sensor are respectively connected to the control module;
[0048] The control module receives the external three-phase command signal, and controls each switching device in the three-phase bridge inverter circuit according to the received command signal corresponding to each phase, and the voltage or...
Embodiment 2
[0064] This embodiment is a microgrid energy storage PCS control method, in which the input end and output end of the three-phase bridge inverter circuit are respectively connected to the storage battery and the three-phase power grid through a filter circuit; the method includes:
[0065] Obtaining an external three-phase command signal, where the external three-phase command signal includes a three-phase active power command signal and a three-phase reactive power command signal;
[0066] Obtain the voltage and current feedback values at the output end of the three-phase bridge inverter circuit, and calculate the measured active / reactive power values of each phase according to the voltage and current feedback values;
[0067] Obtain the phase angle value of the three phases of the power grid in real time;
[0068] For each phase, the difference between the active / reactive power command signal and the measured active / reactive power value is used as the input value, and th...
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