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Reactive Power Compensation in the Application of Shanghai Petrochemical Power Grid

Author: YanTao
Tutor: JieDa
School: Shanghai Jiaotong University
Course: Electrical Engineering
Keywords: reactive power compensation Shanghai Petrochemical power grid voltage stability shunt capacitor SVC
CLC: TM727.3
Type: Master's thesis
Year: 2012
Downloads: 64
Quote: 0
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Abstract


Voltage is an important indicator of power quality, voltage quality have a direct impact on the stability of power system ,the safe operation of electrical equipment, line losses, product quality and the electricity unit consumption. Reactive power is an important factor which can affect the voltage quality, voltage quality and reactive power are inextricably linked, so we can say that the voltage means reactive power essentially. As the lack of reactive power, voltage and power factor will reduce and then damage the electrical equipments, even cause the collapse of severe voltage and the whole system, result in causing a big electricity cut. In recent years, With the company of Shanghai Petrochemical Co., Ltd’s expanding production of electricity, electricity consumption and the growing changes in the structure, the contradiction between power supply and demand becomes is becoming more and more serious. High-power electric motors in-house and other inductive loads occupy increasing the proportion. While these appliances consume active power, they also output harmonics and consume reactive power. As one of the captive power plant of Sinopec Shanghai Petrochem, its thermoelectricity station 1# is facing the destiny that is involved to stop due to its environment protection is below standard. With the petrochemical reactive power gap’s grow, the threat to the stability of the grid is also growing. In this paper, in base of reactive power operation in Shanghai Petrochemical, we analysis the gap of reactive power of thermoelectricity station 1# before and after its shut down. The power grid of Shanghai Petrochemical must be obtained reactive power compensation. Further calculating the reactive power compensation capacity of thermoelectricity station 1# and the petrochemical transformer substation, in combination of the actual situation in thermoelectricity station 1#, we get the plan which paralleling a capacitors with 35kV bus while using SVC devices. After implementation, the reactive operation of Shanghai Petrochemical power grid has been greatly improved, both voltage quality and power system security have been guaranteed.

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Transmission and distribution technology > The power grid > Network of factories and enterprises,the workshop network
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