Method for solving difficulties of peak load regulation of power grid, installation and electricity and coal deficiency

Abstract

The invention provides a method for solving difficulties of peak load regulation of a power grid, installation, benefit, coal, fuel, water and electricity, and belongs to the field of power systems. China has 86.4 thousands of reservoirs, and has tens to hundreds of million kw local hydropower installation, the method installs time-sharing metering electric energy meters in each internet gateway of each local hydraulic power generation plant, 2 to 8 hours of local hydraulic power can be bought at high price every day is used for peak load regulation of the power grid during the peak of the power grid so as to solve the problem that dozens to hundreds days each year, and tens to hundreds of million kw every day are required for peak load regulation of the power grid and valley filling. Fortwenty years of grid access, the method creates extra economic benefit of thousands of billion yuan for the power grid and the local hydraulic powder because 1, the installed capacity of hydraulic power is hundred of millions to billions kw; 2, hydraulic power of the power grid is promoted to generate extra 800 to 2,000 utilization hours each year; and hydraulic power can be generated by 1 and 2 without coal, so electricity coal can be saved hundreds of million tons every year compared with the prior art of the same power and price (0.2 to 0.4 yuan / kw.h on average). The method solves the problems of difficulties in power grid installation, electricity coal deficiency, fuel deficiency, accident standby, peak regulation, valley filling, frequency regulation, black start, power environmentalprotection and sustainable development.

Description

(1) technical field; [0001] The invention is applied in the field of power system (2) Background technology [0002] The hydroelectric power plant major part of existing technology operation is Jingliu type hydroelectric power plant, and thermal power comprehensive adjustment capacity is only 20-30% (seeing China Electric Power News 2002.2.25 " improve central China power grid... "). my country's thermal power installed capacity accounts for more than 76% of the country's total installed capacity (see China Electric Power News 2000.3.25 "Adjusting Energy..."), (see China Electric Power Industry's 2000 2 Issue 25 "Power Grid Peak Regulation and Installed Machine Composition") (see China Electric Power Reported on May 31, 2005 "East China..." Fenggu has a difference of 23.1818 million KW). In 2004, there were 24 provinces in China who were short of electricity (see China Electric Power News 2004.5.30 "This year's electricity shortage..."), and the electricity prices of hydropo...

AI Technical Summary

Problems solved by technology

In 2004, there were 24 provinces in China who were short of electricity (see China Electric Power News 2004.5.30 "This year's electricity shortage..."), and the electricity prices of hydropower plants built with current technology repaying capital and interest are high (see page 8 of issue 8 of 1994 in China Electric Power Industry Co., Ltd. "Hydroelectric Loans..." table 1), China's currently planned, under construction, and operating hydropower plants can develop 541 million KW, which is calculated from the part of the 1.35 trillion tons of water flow (see Guangming Daily 2001.3 .10 "Solving Water..."); during the high water season, the power grid and local hydropower plants can simultaneously generate 3 / 4 more electricity, and the peak load of the power grid is short of peak load; Regulating storage capacity, coupled with thousands to tens of thousands of local hydropower plants with millions to hundreds of millions of KW loads, unfettered access to the Internet, it is difficult to fill valleys in the low valley of the power grid, and the river water has large fluctuations, so the hydropower plants in the provincial power grid are dispatched There is a lot of abandoned water at peak, and there is a lot of power consumption. The dam sites of hydropower plants in the power grid have been generating half of the flow and half of the water for many years.

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