Design and implementation of STATCOM for reactive power compensation and voltage fluctuation mitigation in microgrid

2015 ◽  
Author(s):  
Pushkar Chaudhari ◽  
Paris Rane ◽  
Amit Bawankar ◽  
Pranit Shete ◽  
Kundan Kalange ◽  
...  
Keyword(s):  
Reactive Power ◽  
Reactive Power Compensation ◽  
Voltage Fluctuation ◽  
Design And Implementation

scholarly journals Research on Dynamic Reactive Power Compensation Scheme for Inhibiting Subsequent Commutation Failure of MIDC

2021 ◽  
Vol 13 (14) ◽  
pp. 7829
Author(s):  
Yifan Zhang ◽  
Fei Tang ◽  
Fanghua Qin ◽  
Yu Li ◽  
Xin Gao ◽  
...  
Keyword(s):  
Reactive Power ◽  
Inhibitory Effect ◽  
Economic Benefits ◽  
Reactive Power Compensation ◽  
Normal Operation ◽  
Voltage Fluctuation ◽  
Commutation Failure ◽  
Bus Voltage ◽  
Configuration Scheme ◽  
Voltage Support

Commutation failure at the inverter side of an MIDC (multi-infeed HVDC) is usually caused by AC system faults. Suppose the converter bus voltage cannot recover to the normal operation level in time: in that case, the commutation failure will then develop into more severe subsequent commutation failures or even DC blocking, which will severely threaten the security and stability of the system. Dynamic reactive power compensation equipment (DRPCE) can offer voltage support during accident recovery, stabilize voltage fluctuation and inhibit any subsequent commutation failure risk. This paper proposes the optimal DRPCE configuration scheme for maximizing both inhibitory effect and economic performance. The simulation results on MATLAB-BPA prove the scheme’s correctness and rationality, which can effectively inhibit the risk of subsequent commutation failure and obtain economic benefits.

Application of Static Reactive Power Compensation Device in Power System Stability

2014 ◽  
Vol 494-495 ◽  
pp. 1651-1655
Author(s):  
Yu Jie Pei ◽  
Qing Hao Wang ◽  
Jian Guo Xu ◽  
Zhi Gang Li ◽  
Bo Liu ◽  
...  
Keyword(s):  
Reactive Power ◽  
Power System Stability ◽  
Reactive Power Compensation ◽  
System Stability ◽  
Liaoning Province ◽  
Voltage Fluctuation ◽  
Electricity Load ◽  
Design Requirements ◽  
Compensation Device ◽  
Quality Status

With the rapid economic development in Liaoning Province, very rapid growth in electricity load, especially steel and fused magnesium commercial power. After the implementation of TOU price, Liaoning power grid voltage fluctuation is increased by that some enterprises were concentrated in low hours of electricity. Some power users were affected by lacking the means of dynamic reactive power. To point the necessity of application of the SVC, the existing of 66kV and 220kV grid power quality status are analyzed and simulated. The SVC compensation capacity and filter parameters are systematically design, after the transformation of the system and the simulation proved that the grid can achieve the design requirements.

scholarly journals Low-Harmonic DC Ice-Melting Device Capable of Simultaneous Reactive Power Compensation

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2596
Author(s):  
Jiazheng Lu ◽  
Siguo Zhu ◽  
Bo Li ◽  
Yanjun Tan ◽  
Xiudong Zhou ◽  
...  
Keyword(s):  
Transmission Lines ◽  
High Efficiency ◽  
Reactive Power ◽  
Reactive Power Compensation ◽  
Negative Deviation ◽  
Ice Melting ◽  
Voltage Fluctuation ◽  
Small Power ◽  
Supply Capacity ◽  
Bus Voltage

As a result of the high efficiency of ice-melting and the small power supply capacity, DC ice-melting devices are widely used in relation to transmission lines in the power grid. However, it needs to consume reactive power when ice-melting, and voltage fluctuation of the substation may be caused when the demand for reactive power is large. It also generates a large number of 5th and 7th harmonics when ice-melting. In this paper, combined with the demand for ice-melting for transmission lines and the dynamic reactive power of substations, a low-harmonic DC ice-melting device capable of simultaneous reactive power compensation is studied. The function of ice-melting and reactive power compensation can be operated simultaneously and the rectifier’s main harmonics can be eliminated. The simulation and experimental research on the device was carried out in the 500 kV Chuanshan substation. The actual ice melting was carried out on the 500 kV Chuansu I line and took only 68 min to melt the ice. The 500 kV bus voltage had no negative deviation, and the positive deviation decreased from +3.09% to +1.57% within 24 h of testing. The results prove the feasibility of the proposed DC ice-melting device in this paper.

scholarly journals Suppression Method of Source Voltage Fluctuation Utilizing Reactive Power Compensation on AC Electric Railway

1992 ◽  
Vol 112 (1) ◽  
pp. 74-82
Author(s):  
Yoshifumi Mochinaga ◽  
Hirofumi Fujie ◽  
Takayuki Furukawa ◽  
Masatoshi Takeda ◽  
Eiji Kuba
Keyword(s):  
Reactive Power ◽  
Reactive Power Compensation ◽  
Voltage Fluctuation ◽  
Source Voltage ◽  
Suppression Method ◽  
Electric Railway

The Design and Implementation of Intelligent Compensation Controller

2013 ◽  
Vol 443 ◽  
pp. 329-332
Author(s):  
Chun Ping Wang
Keyword(s):  
Data Transmission ◽  
High Performance ◽  
Reactive Power ◽  
Reactive Power Compensation ◽  
Compensation System ◽  
Electric Power System ◽  
Time Data ◽  
Control Center ◽  
Design And Implementation ◽  
Static Var Compensation

By studying the developmental actuality of reactive power compensation system in electric power system, with research on the theory and mode of reactive power compensation, this paper proposes a kind of static var compensation controller, which is based on high-performance, low-power microcontroller ADUC836It adopts nine-zone graph theory as the control tactics of voltage and reactive power. This new designed compensation controller can be connected with GPRS module by RS232 /485, thus the purpose of the real-time data transmission and exchange with the main control center is achieved. The whole system obtains the advantages of simple hardware structure, low price, easy software programming and excellent anti-interference ability.

REACTIVE POWER COMPENSATION MINIMUM LOAD TRANSFORMERS WITH A SECONDARY VOLTAGE 0 4 KV

2018 ◽  
Vol 28 (104) ◽  
pp. 154-160
Author(s):  
I. Doroshenko, ◽  
◽  
T. Druchyna, ◽  
Yu. G. Sarahman ◽  
Keyword(s):  
Reactive Power ◽  
Reactive Power Compensation ◽  
Secondary Voltage
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