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An instantaneous power theory based control scheme for unified power flow controller in transient and steady state conditions

机译：基于瞬时功率理论的统一潮流控制器在瞬时和稳态条件下的控制方案

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摘要

Due to the recent advances in high power electronic industry and semiconductor technologies, many fast and advanced controllers and compensators have emerged. A variety of these devices, known as flexible AC transmission systems (FACTS) have many potential uses in power system control. Unified power flow controller (UPFC) is one of FACTS devices consisting of two PWM-converters and sharing a d.c. link. This paper proposes a new approach in which UPFC is used for power flow control in both steady state and transient conditions as well as harmonic compensation through an instantaneous control scheme, valid in general system conditions and applicable to all voltage-current waveforms. Also, the proposed control scheme incorporates a technique of reducing power oscillations during transient conditions. Simulation results show that the control scheme provides satisfactory performance, meeting the design objectives.
机译：由于高功率电子工业和半导体技术的最新发展，出现了许多快速和先进的控制器和补偿器。这些被称为柔性交流传输系统（FACTS）的设备中的许多设备在电力系统控制中具有许多潜在用途。统一潮流控制器（UPFC）是FACTS装置之一，由两个PWM转换器组成并共享一个dc。链接。本文提出了一种新方法，该方法将UPFC用于稳态和瞬态条件下的潮流控制，以及通过瞬时控制方案进行谐波补偿，该方法在一般系统条件下均有效，并且适用于所有电压-电流波形。而且，提出的控制方案结合了减少瞬态条件期间的功率振荡的技术。仿真结果表明，该控制方案具有令人满意的性能，可以满足设计目标。

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