An optimization method for steam turbine agc system
An optimization method and steam turbine technology, applied in geometric CAD, computer-aided design, calculation, etc., can solve the problem that it is difficult to meet the adjustment speed and adjustment accuracy at the same time
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specific Embodiment approach 1
[0032] Specific implementation mode one: as figure 1 Shown, a kind of optimization method of steam turbine AGC system comprises the following steps:
[0033] Step 1: According to the actual variable load rate V of the unit 0 And the expected variable load rate V that meets the requirements of the AGC assessment 1 Get the optimized ratio K 1 ;
[0034] Step 2: According to the optimized ratio K obtained in Step 1 1 Get the slope K of the tuning characteristic curve:
[0035] K=1+K 1
[0036] Step 3: In order to increase the slope of the characteristic curve, change the slope of the characteristic curve of the regulating valve, and change the value range of the X-axis (comprehensive flow command) of the characteristic curve of the regulating valve from [0,100] to [0,X’], where:
[0037]
[0038] Step 4: Translate the tuning characteristic curve as a whole, so that the value range of the X-axis of the tuning characteristic curve is [0,100];
[0039] Step 5: Correct the...
specific Embodiment approach 2
[0045] Specific embodiment two: the difference between this embodiment and specific embodiment one is that: in the step one, according to the actual variable load rate V of the unit 0 And the expected variable load rate V that meets the requirements of the AGC assessment 1 Get the optimal ratio K 1 Specifically:
[0046]
[0047] Other steps and parameters are the same as in the first embodiment.
specific Embodiment approach 3
[0048] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that in the step 4, the overall translation distance X of the adjustment characteristic curve is translated. L for:
[0049] x L = 100-X'.
[0050] Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.
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