Event-triggered voltage control of inverter-based microgrids

2018 ◽  
Author(s):  
Babak Abdolmaleki ◽  
Alireza Seifi ◽  
Mohammad Mehdi Arefi ◽  
Qobad Shafiee
Keyword(s):  
Voltage Control ◽  
Event Triggered

scholarly journals Distributed Event-Triggered Voltage Control with Limited Re-Active Power in Low Voltage Distribution Networks

Electronics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 128
Author(s):  
Yanyu Luo ◽  
Minyou Chen ◽  
Wenfa Kang ◽  
Xiaoluo Sun
Keyword(s):  
Control Strategy ◽  
Low Voltage ◽  
Voltage Control ◽  
Distribution Networks ◽  
Voltage Sensitivity ◽  
Voltage Distribution ◽  
Level Control ◽  
Sensitivity Matrix ◽  
Voltage Control Strategy ◽  
Event Triggered

A high proportion of photovoltaic (PV) connections to a low-voltage distribution network (LVDN) causes serious voltage problems. In order to ensure voltage stability for renewable energy networks, we propose a distributed reactive voltage control strategy that is event-triggered. The voltage information of the PV nodes is transmitted to the upper layer of the communication network, where the agent calculates the output set value of the PV inverter. The underlying control strategy is based on the voltage sensitivity matrix, and the upper-level control strategy is based on an event-triggered consensus protocol. This strategy can accommodate the requirements for multi-time modeling and control. We verified the convergence of the event-triggered control algorithm using numerical analysis and proved the reduction of the communication times. We conducted case studies and simulation experiments to verify the effectiveness of our proposed voltage control strategies.

Distributed event-triggered mechanism for secondary voltage control with microgrids

2018 ◽  
Vol 41 (6) ◽  
pp. 1553-1561 ◽  
Author(s):  
Jing Shi ◽  
Dong Yue ◽  
Shengxuan Weng
Keyword(s):  
Control Strategy ◽  
Voltage Control ◽  
Control Performance ◽  
Practical Application ◽  
Limited Bandwidth ◽  
Distributed Generators ◽  
Control Scheme ◽  
Secondary Voltage ◽  
Simulation Results ◽  
Event Triggered

This paper presents a secondary voltage control scheme with a distributed event-triggered mechanism for multiple distributed generators in droop-controlled microgrids. First, considering the issue of limited bandwidth of a communication network in a practical application, two types of distributed event-triggered mechanisms are proposed to reduce the information transmission pressure, while preserving the desired control performance. Then, based on the proposed triggering schemes, distributed secondary controllers are designed for distributed generators. Finally, simulation results demonstrate that by using the control strategy, the voltages of distributed generators are synchronised to their nominal values.

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