Desempenho em Regime Permanente e Transitório Eletromecânico de SSSC no Organon e suas Vantagens para Operadores de Sistemas

Atualmente, os operadores do sistema elétrico contam com poucos elementos além do redespacho de geração para evitar condições operativas críticas que geram sobrecargas nos principais corredores de intercâmbio elétrico entre os sub-sistemas. O redespacho, no entanto, é uma medida que usualmente aumenta geração de maior custo em detrimento de outras de menor custo, trazendo impactos a tarifa de energia. O SSSC (Static Synchronous Series Compensator) é uma nova tecnologia para controlar fluxo de potência em sistemas elétricos. Ao injetar uma tensão série em quadratura, adiantada ou atrasada em relação à corrente da linha, obtém-se efeito indutivo ou capacitivo no circuito onde este elemento é inserido e, consequentemente, diminui ou aumenta-se o fluxo de potência de acordo com as necessidades de operação. Ou seja, ao introduzir este elemento, as Linhas de Transmissão tornam-se despacháveis e sua controlabilidade algo extremamente valioso para os operadores de sistemas, evitando-se assim o redespacho de geração para controle de fluxos

Authors

J.L Jardim; V. Nakashima; R. GUIMARÃES; F. Melo; J.M Areiza; S. Mesa; A. Prioli; S. Gomez; P. Penna

Analysis, Design, Implementation and Validation of an RTDS test benchmark for system integration of M-SSSC solutions in the Santa Marta substation (Colombia)

This paper presents the experience gained during the design and implementation of the performance tests in the Real Time Digital Simulation (RTDS) system for a real power flow control solution based on M-SSSC devices and applied to the Colombian power grid. The tests benchmark is aimed to cover functional performance, harmonic emission, background harmonic immunity and dynamic performance in real operation scenarios. The tests were instrumental to validate the proper integration of the M-SSSC installations with the existent components of the power grid, to define their settings and specify improvements to existing functionalities. Finally, this paper establishes a series of good practices identified from the experience of real transmission systems of the ISA group to incorporate them to the installation of this novel technology and promote the safe expansion of this type of solutions all over the world.

Authors

A. Duque; J.A Calderon; C.E Borda; S. Hincapie; J.P Botero; M. Hammad; D. Caro; P. Macedo; C.A Restrepo; J.P Gallego

Algorithm for Calculating the Dispatch of Multiple Power Flow Control Devices using Current Sensitivity Factors

This paper presents an algorithm to determine the required series voltage injection setpoint for multiple Modular Static Synchronous Series Compensation (M-SSSC) installations. These devices are part of the Flexible AC Transmission Systems (FACTS) family, and one of its main objectives is to allow power flow control to enhance grid utilization. With the proposed algorithm, it is possible to automatically reach the required magnitude for a set of line currents, which can be associated to the line’s thermal limit or to preferred operational setpoints. Additionally, the algorithm performance is tested in different power systems, identifying systemic benefits such as wide-area control, grid capacity optimization, system reliability and security, and facilitating the integration of renewable generation.

Authors

A. Duque; D. Urbaez; S. Gomez

Real-Time Simulations to Validate the Impact of M-SSSC Devices on Protection Coordination in Power Systems

This paper analyzes the impact of the integration of the Modular Static Synchronous Series Compensator (M-SSSC) solution that will be deployed in the Santa Marta 220 kV (Colombian substation) by using real-time simulations with Hardware in the Loop (HIL) technique, over the protection coordination schemes in the area of influence. The results show that the M-SSSC devices can be successfully coordinated with the protection schemes, mitigating overloads through the transmission lines during steady state and contingencies, while avoiding potential harmful interactions with the grid and, most importantly, with protection devices. This behavior is achieved by using overcurrent detection logics implemented on M-SSSC devices that trip fast-acting Silicon Controlled Rectifiers (SCRs) that cease the voltage injection in less than 5 ms.

Authors

J.P Gallego; A. Duque; C.E Borda; J.A Calderon; J. Marin; P. Macedo; S. Hincapie