Optimisation provides the means of raising or lowering the target suction pressure in a Honeywell Genus® pack controller. Suction pressure optimisation means that suction pressures are raised to the highest level allowed within defined evaporator performance limits. This provides optimum compressor energy consumption while ensuring that the refrigerated merchandise quality is maintained at the ...

This paper proposes a control system for integrated pressure and surge control of centrifugal compressors for enhanced oil recovery application. The proposed control system is based on linear model predictive control. A fully validated non-linear dynamic model was developed in order to simulate the operation of the compressor at full and partial load. The model of the compression system include...

The Advisory Council for Aeronautics Research in Europe (ACARE) Flight Path 2050 focuses on ambitious and severe targets the next generation of air travel systems (e.g., 75% reduction CO2 emissions per passenger kilometre, a 90% NOx emissions, 65% noise flying aircraft relative to capabilities typical new 2000). Degradation is an inevitable phenomenon as aero-engines age with significant impact...

Recently, model predictive control (MPC) has received increased attention in the HVAC community, largely due to its ability to systematically manage constraints while optimally regulating signals of interest to setpoints. For example, in a common formulation of an MPC control problem for variable compressor speed vapor compression machines, the setpoints often include the zone temperature and t...

Temperature control is important in energy management of buildings. Air conditioning system contributes a high percentage the total consumption, compressor, which major component system, utilizes up to 90% energy. This can drastically be reduced by varying frequency compressor with respect required indoor temperature, as such, reducing overall usage air system. The combination well-tuned contro...

In this article torque assisted anti-surge control (TASC), a compressor anti-surge control system based on model predictive control (MPC) is presented. TASC is implemented on an embedded system for the control of compressor stations with electrical variable-speed drives (VSD) which are used in applications such as natural gas transportation via pipelines. The manipulated variables of the propos...

This paper introduces the vehicle fuel cell system and EMC test methods, systematically analyses research progress of standards for automotive industry system. Taking air compressor controller as an example, this study puts forward a method formulating electromagnetic compatibility standard system, gives suggestions relevant series standards.

This paper presents a novel strategy for implementing model predictive control (MPC) to a large gas turbine power plant as a part of our research progress in order to improve plant thermal efficiency and load-frequency control performance. A generalized state space model for a large gas turbine covering the whole steady operational range is designed according to subspace identification method w...

In order to address the issue of low degree of automation and huge waste of electric energy of the equipment in drilling engineering freezing station which adopts the freezing method of coal mine, we need to design an intelligent control system to control both the brine pump and double stage ammonia screw compressor. According to the actual cooling need in freezing project, this new system is a...