A simple control method of waterworks pump power consumption for demand response

Demand response of waterworks has a big possibility because waterworks consume 2 ~ 3 % of world electricity and water is easy to store. This paper proposes a control method called “simple dead-beat control” to suppress the two-step power consumption of pumps of waterworks occurred in the step response. Though a dead-beat control method have been proposed, the method needs a lot of parameters to determine. The simple dead-beat control needs only step-response tests to determine the parameters. In tests of this method by use of actual waterworks site, the amplitude of two-step responses is modelled as bivariate quadratic function of the present and next target of pump power consumption. The effectiveness of the suppression is evaluated by the RMS value of the difference between the target and the actual pump power of the test data.