System and method for optimized decision-making in water supply networks and/or water supply operations

• US 8,958,922 B2
• Filed: 05/13/2011
• Issued: 02/17/2015
• Est. Priority Date: 11/14/2008
• Status: Active Grant

• Current Assignee: ABB Schweiz AG (ABB Limited)
• Original Assignee: ABB Technology AG (ABB Limited)
• Inventors: Blank, Frederik, Gauder, Markus, Lauxtermann, Stefan, Schreyer, Heinrich-Martin
• Primary Examiner(s): Padmanabhan, Kavita
• Assistant Examiner(s): CHANG, SUNRAY
• Application Number:
  US13/107,271
• Publication Number:
  US 20110264282A1
• Time in Patent Office: 1,376 Days
• US Class Current: 700/282
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
• CPC Class Codes: G06Q 50/06 Energy or water supply
• CPC Class Codes: Y10T 137/0318 Processes

Abstract

A system and method are provided for optimized decision-making in water supply networks and/or water supply operations. The system includes at least one central data processing device and a control system having at least one integration device. The system also includes at least one functional unit for identifying and/or processing status information affecting the respective network or operation. The functionality of the at least one functional unit can be integrated and/or incorporated into the control system by means of the integration device such that the control system functionality is expanded by the functionality of the respective functional unit and/or control system, and the at least one function unit cooperates such that individual functions and/or the functionality of the respective functional unit can be called up and/or executed and/or utilized via the integration unit and/or the control system, and resulting additional status information can be obtained and provided for decision-making, for example, relating to a technical task or technical problem.

Claims

1. A system for at least one of determining and processing state information concerning a water supply grid, the system comprising:

at least one central data processing device;

a control system;

at least one integration device;

one information management system; and

functional units, wherein;

the functional units obtain and provide state information;

a respective functionality of the functional units is integrated into the control system by means of the integration device such that a functionality of the control system is extended by the functionality of the respective functional unit, and at least one of individual functions and the functionality of the functional units is accessible from the integration device;

the information management system interacting with the integration device, the control system and the functional units acts as central database and provides a continuous data and information exchange between the control system and the functional units, the functional units being configured to access data and information of other integrated functional units;

the functional units comprise

an action planning and scheduling unit configured to perform an operation of optimally actuating pumps for producing flow and pressure in the water supply grid,

a prediction unit configured to provide a locally resolved estimate of future water consumption in the water supply grid,

an alarm management unit configured to at least one of deliver fault reports from pumps and/or valves and report a leak in a line section or a grid section, and

a visual display unit comprising functional options for presenting geographical data and for visualizing various states of the system, the visual display unit being configured to communicate with the respective functional unit and an application thereof, transmit selections of a user to the application, transmit responses and results from the respective application to the user, and visualize temporally and locally conditioned information and data;

the estimate of the future water consumption serves as a basis for the optimal actuation of the pumps performed by the planning scheduling unit; and

at least one of (i) the fault reports from pumps and valves and (ii) the report on a leak are taken into account in the pump actuation optimization operation and reacted to accordingly, such that faulty pumps are no longer actuated, areas which contain a faulty pressure regulation valve, in particular if the valve is closed or off and can no longer be controlled, are fed with a different control strategy than before, and that high pressures in lines with leaks are avoided.

2. The system according to claim 1, wherein the areas which contain a faulty pressure regulation valve include at least one of the valve being closed or off and being no longer able to be controlled.

3. The system according to claim 1, wherein external applications are integratable into an operator environment of the control system by means of the visual display unit,

wherein a geographical information system grid displays at least one of states and zones with critical states and/or graphically conditioned alarm information.

4. The system according to claim 1, wherein the functional units comprise a simulation unit which is configured to provide a model of the water supply grid that is described on the basis of mathematicophysical rules,

wherein the model as well as at least one of the current water supply and the current or estimated water consumption at individual nodes of the water supply grid are used for at least one of determining and predicting expected pressure and flow in the water supply grid, and

wherein confirmed fault reports from the alarm management unit are incorporated into the model automatically.

5. The system according to claim 1, comprising:

a leak detection unit configured to identify and localize, by means of locally resolved online measured values, future or imminent leaks and pipe fractures in the water supply grid at an early stage,

wherein for localization of the fault and for characterizing its seriousness, a water distribution model and a scenario management unit are used which allow different leakage scenarios to be simulated.

6. The system according to claim 1, comprising:

a pressure regulation unit configured to bring about optimum pressure conditions in the water supply grid via an optimized actuation of pressure regulation valves,

wherein the pressure regulation unit is configured to calculate a target opening value which is optimized from the point of view of power and cost aspects based on a predetermined optimized pump schedule, which is at least one of provided by means of the action planning and scheduling unit and based on at least one of estimated water demand and prevailing pressure for each pressure regulation valve.

7. The system according to claim 1, comprising:

a fault compensation unit configured to, when faults arise in the system, provide one or more solution proposals for at least one of correcting and rectifying faults on a database and/or rule basis, in interaction with the action planning and scheduling unit,

wherein, in a manual mode of the fault compensation unit, a step-by-step guide is generated which assists a respective operator in the fault rectification, and, in automatic mode of the fault compensation unit, the respective fault is rectified by virtue of automatic execution of at least one of instructions and commands by the fault compensation unit connected to the control system or by the control system itself.

8. The system according to claim 1, comprising:

a decision making unit configured to perform at least one of a risk-based assessment, weighting and prioritization of pending alarms, and forward those alarms to the alarm management unit which are considered relevant or important.

9. The system according to claim 8, wherein the decision making unit is configured to develop decision proposals for at least one of (i) maintenance and investment planning for the water supply grid and (ii) corresponding equipment, by determining cost-effective maintenance and replacement strategies on the basis of cost information from an enterprise resource planning system, customer queries, electronic maintenance reports, leak and pipe fracture knowledge from the leak detection unit, service life calculations and additional information from the field as well as empirical values.

10. The system according to claim 1, wherein the results of action planning are transferrable to the information management system in a form of time series and stored therein.

11. The system according to claim 2, wherein pending alarms are displayed in the geographical information system in a same way as in process graphics.

12. The system according to claim 3, wherein confirmed fault reports from the alarm management unit are automatically incorporated into the model of the water supply grid, so that a realistic model is always available.

13. The system according to claim 1, wherein the integration device comprises an integration unit configured to incorporate and access at least one of operator interfaces and operator elements of the functional units and applications, and provide a direct view of the respective application and/or functional unit from the integration device for processing directly in the respective application and/or functional unit.