Coordination Control of Voltage Between STATCOM and Reactive Power Compensation Devices in Steady-State

Abstract

-This paper proposes a new coordinated voltage control scheme between STATCOM (Static Synchronous Compensator) and reactive power compensation devices, such as shunt elements(shunt capacitor and shunt reactor) and ULTC(Under-Load Tap Changer) transformer in a local substation. If STATCOM and reactive power compensators are cooperatively used with well designed control algorithm, the target of the voltage control can be achieved in a suddenly changed power system. Also, keeping reactive power reserve in a STATCOM during steady-state operation is always needed to provide reactive power requirements during emergencies. This paper describes the coordinative voltage control method to keep or control the voltage of power system in an allowable range of steady-state and securing method of momentary reactive power reserve using PSS/E with Python. In the proposed method of this paper, the voltage reference of STATCOM is adjusted to keep the voltage of the most sensitive bus to the change of loads and other reactive power compensators also are settled to supply the reactive power shortage in out range of STATCOM to cope with the change of loads. As the result of simulation, it is possible to keep the load bus voltage in limited range and secure the momentary reactive power reserve in spite of broad load range condition.

Optimized operational approach for multi-type reactive power compensation to enhance the grid integration strength of new energy clusters

“…The existing literature on voltage control through reactive power compensation can be categorized into two distinct groups. The first type refers to in situ reactive power compensation (Kirn and Lee, 2005;Abdel-Rahman et al, 2006;Park and Baek, 2012;LIU et al, 2019;Fan et al, 2020;Wen and ZHOU, 2020). The literature (Fan et al, 2020) suggests connecting the fast reactive power compensation device to the heavy-load distribution station and coordinating it with the capacitor bank and on-load regulating transformer.…”

“…The literature (Abdel-Rahman et al, 2006) presents a SVC access strategy incorporating two-stage slope regulation and two-stage voltage regulation control. The literature (Park and Baek, 2012) proposes a voltage coordination control method based on local reactive power compensation, which is developed through extensive research on shunt capacitors, reactors, and on-load regulating transformers. The literature (Kirn and Lee, 2005) presents a reactive power compensation approach utilizing artificial neural network.…”

Design of DC Side Voltage and Compensation Analysis of THD for Shunt Power Quality Controller under System Load of Rectifier with R-L Load

“…As advanced equipment for improving the power quality, Shunt Power Quality Controller (SPQC) combines the functions of Shunt Active Power Filter (SAPF) [1,2] and Static Synchronous Compensator (STATCOM) [3,4]. The SPQC can be used to compensate both the reactive current and the harmonic current.…”