Synthesis Test Control of HVDC Circuit Breaker

Abstract

Test technology is important to evaluate the performance of DC circuit breaker. The synthetic test method is mainly used in high-capacity breaking test. In this paper, a practical and feasible control scheme is designed to the synthetic test circuit. The control system is based on Digital Signal Processor. It controls the charge and discharge of the synthesis test three power supply, and controls the charge of actuators and its trigger. It also acquires real-time experimental data and analyzes the whole test process. The interference in synthetic test control system is analyzed. To minimize the impact of high frequency and high voltage test environment, electrical signals are converted to optical signals for transmission. The upper monitor can remotely control the whole experiment process and observe the experiment results. A test loop was built to perform the experiment. The test results shows that the control system greatly improve the control accuracy and the success rate of synthetic test.