Active power control of solar PV generation for large interconnection frequency regulation and oscillation damping

The fluctuations and uncertainties of wind power increase the frequency regulation pressure of conventional power plants. This paper introduces an active power control strategy with auxiliary frequency regulation function of wind farms. With this active power control strategy, wind farms can work in normal operation mode or in auxiliary regulation mode. Wind farms in normal operation mode can trace the power command to the utmost extent. When the system frequency drops large, to respond this change, the wind farms can switch to auxiliary regulation mode automatically. Simulation results show that the wind farms can assist the conventional power plants to regulate the system frequency effectively.

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Active power control design for supporting grid frequency regulation in wind farms

Annual Reviews in Control ◽

10.1016/j.arcontrol.2015.09.005 ◽

2015 ◽

Vol 40 ◽

pp. 70-81 ◽

Cited By ~ 20

Author(s):

Hamed Badihi ◽

Youmin Zhang ◽

Henry Hong

Keyword(s):

Power Control ◽

Control Design ◽

Wind Farms ◽

Active Power ◽

Frequency Regulation ◽

Active Power Control

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Active Power Control of Grid tied PV system using Fuzzy Controller

International Journal for Modern Trends in Science and Technology - RTT2020 ◽

10.46501/ijmtst060801 ◽

2020 ◽

pp. 1-4

Author(s):

P Ankineedu Prasad and Y Lakshmi

Keyword(s):

Power Systems ◽

Power Control ◽

Control Method ◽

Fuzzy Controller ◽

Storage System ◽

Active Power ◽

Electric Power System ◽

Frequency Regulation ◽

Pv System ◽

Active Power Control

Historically, electric power system operators have seen photovoltaic (PV) power systems as potential sources of problems due to intermittency and lack of controllability. However, the flexibility of power electronic inverters allows PV to provide grid-friendly features including volt-VAR control, ramp-rate control, high-frequency power curtailment, and event ride-through. Commercially available smart PV inverters can further provide frequency down-regulation by curtailing power, but they are unable to provide true frequency regulation through active power control (APC) because they are unable to increase power on command. This paper proposes a coordinated DC-link voltage control and deloading control for two-stage PV system to offer frequency support in an islanded microgrid without energy storage system (ESS). This paper proposes a predictive fuzzy logic based PV inverter control method for very fast and accurate control of active power

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Influence of Hydro Turbine Supervision and Control System on Frequency Characteristics of High Proportion Hydropower System

E3S Web of Conferences ◽

10.1051/e3sconf/202126101036 ◽

2021 ◽

Vol 261 ◽

pp. 01036

Author(s):

Guanhong Wang ◽

Zhichen Geng ◽

Dongping Ai ◽

Wei Wei ◽

Ying Li ◽

...

Keyword(s):

Power Control ◽

Monitoring System ◽

Power Grid ◽

Clean Energy ◽

Active Power ◽

Frequency Regulation ◽

Regulation System ◽

Stability Calculation ◽

Active Power Control ◽

System Frequency

With the construction of interconnected power grid and the rapid development of clean energy, the frequency problem of power system is becoming increasingly prominent. The problem of ultra-low frequency oscillation affects the stability of system frequency. In order to analyze the frequency regulation characteristics of the system, it is necessary to study the local active power control link and stability calculation model of the hydropower plant computer monitoring system. In this paper, the influence of the local active power control link of the monitoring system on the system frequency small signal stability is studied, and the model is built in the simulation program. Through the simulation of 4-machine-2 regional power grid, the influence characteristics of local active power control on frequency dynamic damping level are verified. In the example of large power grid, the coordination between the local active power control of the monitoring system and the speed regulation system of hydropower units is comprehensively considered, the suggestion of coordination of multi-level frequency modulation resources to system frequency regulation is put forward.

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