Research on User-Side Distributed Power System Control Strategy

2014 ◽  
Vol 875-877 ◽  
pp. 1881-1887
Author(s):  
Ming Ming Pan ◽  
Shi Ming Tian
Keyword(s):  
Power System ◽  
Control Strategy ◽  
Operation Mode ◽  
System Control ◽  
Distributed Power ◽  
Power System Control ◽  
Remote Areas ◽  
Distributed Power System ◽  
Switching Control Strategy ◽  
And Control

Distributed power system, especially the distributed power and micro-grid system in the mountain villages, islands and remote areas, has many advantages, which can be used as an effective supplement of grid to help solve the problem of electricity supply. The connected-grid inverter needs to be able to work in both grid mode and island operation mode in order to ensure the safety of the local critical load. The paper proposed the seamless switching control strategy for two modes of switching. The experimental results verify the property of the topology structure and control strategy.

scholarly journals A Distributed Power System Control Architecture for Improved Distribution System Resiliency

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 9957-9970 ◽  
Author(s):  
Kevin P. Schneider ◽  
Stuart Laval ◽  
Jacob Hansen ◽  
Ronald B. Melton ◽  
Leslie Ponder ◽  
...  
Keyword(s):  
Power System ◽  
Distribution System ◽  
Control Architecture ◽  
System Control ◽  
Distributed Power ◽  
Power System Control ◽  
Distributed Power System

Study on Direct-Driven Wind Power System Control Strategy

2011 ◽  
Vol 187 ◽  
pp. 103-107
Author(s):  
Jian Lin Li ◽  
Liang Liang
Keyword(s):  
Power System ◽  
Wind Power ◽  
Control Strategy ◽  
Good Control ◽  
Synchronous Generator ◽  
System Control ◽  
Power System Control ◽  
Dynamic Performances ◽  
Wind Power System ◽  
And Control

The development of direct-driven wind power system using permanent magnet synchronous generator (PMSG) is very fast, and the back-to-back converter has been paid much attention for its excellent performance. The work principle of the generator-side converter (GSC) and control strategy of PMSG are explained in detail, and the steady-state and dynamic performances are analyzed by simulation. The experimental prototype is built to achieve generation and motor state operation, and the vector control of PMSG is realized by generator-side converter. The simulation and experiment results show that using PWM converter as generator-side converter for direct-driven wind power system with PMSG, can achieve good control performance for PMSG and provide possibility to supply excellent power energy transmitted to power grid.

Grid-Connected Inverter with Harmonic Compensation for Distributed Power System

2013 ◽  
Vol 313-314 ◽  
pp. 804-808
Author(s):  
Li Wang ◽  
Wen Xin Huang ◽  
Fei Fei Bu ◽  
Ying Hu
Keyword(s):  
Power System ◽  
Control Strategy ◽  
Reactive Power ◽  
Utilization Efficiency ◽  
Harmonic Compensation ◽  
Distributed Power ◽  
Grid Connection ◽  
Harmonic Pollution ◽  
Distributed Power System ◽  
Grid Connected Inverter

To solve the problem of harmonic pollution in distributed power system, a new type of grid-connected inverter with harmonic compensation is studied in this paper. This system adopts a unified control strategy with decoupled active and reactive power based on grid voltage orientation. Both the grid connection and harmonic compensation are realized together in one inverter, which improves the inverter’s utilization efficiency and protects the power grid from harmonic pollution. The simulation and experimental results are shown to prove the correctness of the control strategy.

Power System Control Considering Line Flow Risk

2014 ◽  
Vol 687-691 ◽  
pp. 3203-3206
Author(s):  
Wei Hua Chen ◽  
Yan Wei Chen
Keyword(s):  
Power System ◽  
Power Flow ◽  
System Security ◽  
System Control ◽  
Power System Security ◽  
Line Load ◽  
Power System Control ◽  
Line Flow ◽  
And Control ◽  
The Impact

Line flow is one of the key factors which dominate the power system security. To deal with this problem, this paper proposed a method of power system assessment and control based on power system Line flow risk. Probabilistic power flow (PPF) is used to analyze the random of system statuses. The severity function is used to describe the impact of the transmission line load. Line flow risk is defined as the result of the probability multiplying the severity of Line flow. It is an indicator of power system security. This reduces the system line flow risk and increases the system security.

scholarly journals Active Synchronous Control Strategy of Distributed Power Grid Connection Based on Mobile Network

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Liu Zhang ◽  
Shaohua Ma ◽  
Yangyang Ge ◽  
Cailian Gu ◽  
Hao Wang
Keyword(s):  
Power System ◽  
Control Strategy ◽  
Control Method ◽  
Power Grid ◽  
Mobile Network ◽  
Large Power ◽  
Distributed Power ◽  
Synchronous Control ◽  
Grid Connection ◽  
Distributed Power System

This paper presents an active synchronous control scheme for distributed power grid connection based on the mobile network. This scheme avoids the disadvantages of the traditional control method, such as long waiting time and low reliability, and can meet the requirements of “the hotplug online” distributed power grid connection. The scheme uses the mobile network to collect and detect voltage slip information between the distributed power system and large power grid before operation. When the voltage slip cannot meet the requirements of grid connection, the side voltage information of the distributed power system is actively regulated. The amplitude difference and phase difference signals are, respectively, adjusted by PI, and the generated adjustment signals are, respectively, sent to the corresponding controllers through the mobile network with different weight coefficients. After the receiver receives the regulated signal, it changes the amplitude and frequency of its output voltage by shifting the pendent characteristic curve, so as to realize the distributed power system side voltage and the large power grid side voltage eventually. Finally, simulation analysis and experiments are used to verify the effectiveness and practicability of the active synchronous control strategy.

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