Automatic power adjusting method of generator
A technology of generator power and automatic adjustment, applied in the control of generators, engine components, machines/engines, etc., can solve the problems of low degree of automation and high labor intensity of workers, saving labor, improving automation level, and improving safety and economy The effect of performance and power generation quality
Inactive Publication Date: 2012-07-04
SHANDONG XINYANG ENERGY
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Problems solved by technology
At present, the adjustment of active and reactive power is done manually, and the labor intensity of workers is high, and the degree of automation is low.
Method used
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[0016] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.
[0017] The electrical schematic diagram and working program diagram of the active power automatic adjustment method of the present invention are respectively shown in figure 1 with figure 2 , as can be seen from the figure, it is connected to the upper and lower limit contacts of the DCS system of the steam turbine inlet pipeline respectively. Adjust the speed control valve of the steam turbine to change the intake steam flow, and then adjust the active load of the generator. When the inlet steam pressure is between the upper and lower limits, the DCS system does not act. When the inlet steam pressure reaches the upper limit, the DCS outputs a contact signal, energizes, and the time for increasing the load. The intermediate relay SJZ1 controls the on-off time interval according to the setting. The time intermediate relay SJZ1 for increasing...
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The invention discloses an automatic power adjusting method of a generator, and the automatic power adjusting method comprises an automatic active power adjusting method and an automatic reactive power adjusting method, wherein according to the automatic active power adjusting method, an upper-limit connection point and a lower-limit connection point of a DCS (distributed control system) of an air inlet pipeline of a steam turbine are respectively connected with a time intermediate relay for increasing a load and a time intermediate relay for reducing the load; according to the automatic reactive power adjusting method, an upper-limit connection point and a lower-limit connection point of a power-factor meter are respectively connected a time intermediate relay for increasing magnetism and a time intermediate relay for reducing the magnetism; and the automatic adjustment of the active power and the reactive power of the generator is achieved through the four time intermediate relays. By using the automatic active power adjusting method and the automatic reactive power adjusting method provided by the invention, the labor force is saved; the safety, the economy and the electricity generation quality of a machine set are improved; and the automation level is further promoted.
Description
technical field [0001] The invention relates to small and medium-sized thermoelectric units. Background technique [0002] In accordance with the energy policy formulated by the country, realizing combined heat and power generation is an effective measure to save energy and protect the environment. The thermal efficiency of combined heat and power generation can reach about 70%-80%, while the thermal efficiency of general condensation power plants with a single unit capacity of more than 200MW is only 35-40%, and the energy utilization efficiency is more than double that of pure power generation. It uses different grades of thermal energy in stages (that is, high-grade thermal energy is used for power generation, and low-grade thermal energy is used for central heating), which improves energy utilization efficiency and reduces environmental pollution. Combined benefits such as thermal mass and increased power supply. [0003] As an enterprise of comprehensive utilization o...
Claims
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Login to View More IPC IPC(8): H02J3/46H02J3/48H02P9/04F01D17/08
Inventor 李明强侯义国辛鹏闫登祥
Owner SHANDONG XINYANG ENERGY