The objective of this paper is to present an integral comparison of the major aspects above. According to these, studying and comparing these controllers holistically would be useful. Similarly, the impact of the SVC and STATCOM on the performance of distance protection is unfavorable ( Albasri, Sidhu, & Varma, 2007).
In terms of economic/business feasibility for transmission enhancement, however, the STATCOM has disadvantages ( Ramanathan, Elizondo, Enslin, & Zhang, 2006). There has been a significant body of literature, as previously mentioned in the technical analysis of shunt-connected FACTS in some papers both the SVC and the STATCOM have presented similar benefits, while in others the connection of STATCOM is slightly better. The application of the shunt-connected FACTS including placement, sizing, PV curves, voltage profile, power losses and loading margin are also investigated in Sode-Yome, Mithulananthan, and Lee (2007). On the other hand, research focuses on the impact of compensation of the SVC and STATCOM controllers, especially on the steady-state analysis ( Kamarposhti & Lesani, 2010 Moazzami, Hooshmand, Khodabakhshian, & Yazdanpanah, 2013) and for first-swing stability enhancement ( Tan, 1999). The STATCOM is the most recent static compensator based on the use of voltage source converters (VSCs) and provides all the functions that the SVC can provide, but at a higher speed ( Angeles-Camacho, 2005). The SVC has made the rotating synchronous compensator redundant, except where an increase in the shortcircuit level is required along with fast-acting reactive power support. This paper reports on the comparison of two FACTS controllers in parallel or shunt connection, the thyristor-based SVC and the STATCOM. This represents the most efficient combination of conventional primary equipment, high power semiconductor devices, microelectronics and telecommunications equipment, allowing a most flexible power electric system. The FACTS technology has become one of the most valuable compensation techniques, because it applies the latest advances in power electronics to achieve additional and more effective control of the parameters of the electrical systems. Load-tap changing transformers (LTCs) whose main function is to regulate voltage magnitude at its terminals by changing their transformation ratio.Īdvances in power electronic technologies together with sophisticated electronic control methods made possible the development of fast static compensators namely Flexible AC Transmission Systems (FACTS). On the other hand, the reactive power absorbed/supplied by RSCs and SVCs is automatically adjusted so as to maintain fixed voltage magnitude at connection points. Nevertheless, they provide passive compensation since their production or absorption of reactive power depends on their rating and the bus voltage level at which they are connected.
SCs and SRs are either permanently connected to the power system or can be switched on and off according to operative conditions.
#COST COMPARISON OF PARALLELS PRO VERSIONS GENERATOR#
Traditionally the following devices are used for this purpose: automatic voltage regulators (AVR) controlling a generator’s field excitation so as to maintain a specified voltage magnitude at generator terminals, as well as sources or sinks of reactive power, such as shunt capacitors (SCs), shunt reactors (SRs), rotating synchronous condensers (RSCs) and SVC. Reactive power flow is minimized so as to reduce losses in the network, and voltage regulation is generally carried out locally.
Voltage magnitude regulation in the network is achieved by controlling the production, absorption and flow of reactive power throughout the system. Voltage magnitude throughout the network cannot deviate significantly from its nominal value if an efficient and reliable operation of the power system is to be achieved.
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