| 摘要 |
PROBLEM TO BE SOLVED: To provide a power generating plant configured so that voltage, power and power factor on a system side are arithmetically calculated on the basis of current and voltage at a generator output end without using any voltage/current input of a converter/transformer for an extra-high-tension side instrument, and generator exciting is controlled on the basis of the arithmetically calculated voltage, power and power factor.SOLUTION: A power generating plant includes: a voltage detector 3 for detecting a voltage outputted from a generator 1 connected to a transmission system via a main transformer 2 having no on-load tap switching function; a current detector 7 for detecting a current outputted from the generator; an arithmetic unit 8; and a controller 10. An exciting system of the generator is controlled by the controller 10 on the basis of a main transformer system side voltage calculated by the arithmetic unit 8 from individual signals of outputted voltage, outputted current, outputted active power and outputted reactive power which are outputted from signal converters 13-16 on the basis of the voltage and the current respectively detected by the voltage detector 3 and the current detector 7, and from a loss of the main converter. |
