Passivity-Based Control of Water Pumping System Using BLDC Motor Drive Fed by Solar PV Array with Battery Storage System

Abstract

In remote locations, it is advisable to combine solar water pumping with electric energy storage and power supply for other forms of consumption. In such complex systems, individual subsystems feature their own local control, and the general automatic control of the system in different modes of its operation is carried out in accordance with an energy management strategy (EMS). In this paper, the functions of local and general control of the solar water pumping system with battery storage and external power supply are combined in the system of passivity-based control (PBC). The EMS is constructed in such a way that for all modes, only two PBC systems are developed, which are switched depending on the battery’s state of charge and the current levels of the two main disturbances—solar irradiation and electrical consumption. For each system, two control influence former (CIF) structures were synthesized and their operation was investigated by computer simulation. Despite the simplicity of CIFs’ implementation, due to the introduced interconnection and damping coefficients, such control allows the provision of the required voltage regulation with a static error up to 1%, sufficient quality of transients during disturbances and switching of the system structure, as well as system asymptotic stability.

Passivity-Based Power-Level Control of Nuclear Reactors

“…where positive constants k D1 and k D4 are feedback gains, and both ζ 1 are ζ 2 are the auxiliary state variables to be designed. Substitute control law (19) to Equation (17), and it can be seen that the time derivative of E N is given by .…”

“…From ( 21) and ( 22), it can be seen that auxiliary state variables ζ 1 and ζ 2 are the weighted integration of x 1 and x 4 , respectively. Hence, virtual control law (19) can be seen as a proportional-weighted-integral control law.…”

“…The classical CbI has been applied to the frequency stabilization of multimachine power system [12], the motion control of induction motors [13], and the temperature control of heat exchanger networks [14], whose popularity comes from its simplicity. The IDA-PBC method is applied for designing the state-feedback control laws for induction motors [15], hydroturbine systems [16], multimachine power systems considering hydroturbine with surge tank [17], a fuel cell/super-capacitor hybrid system [18], brushless DC motor [19], and electric vehicles (EVs) [20]. The popularity of the IDA-PBC method is given by its capability of injecting extra damping, and usually proper state observers are necessary for realizing practically implementable dynamic output feedback control strategies.…”

Enhanced Power Factor Correction and Torque Ripple Mitigation for DC–DC Converter Based BLDC Drive

“…To overcome these restrictions, a variety of complex and high-cost pulse width modulation approaches were proposed in [13]. There are reports that the switching losses and harmonics in front of the VSI unit can be reduced using unipolar and bipolar PWM approaches [14]. Therefore, throughout the operation, diode freewheeling and the commutation current ripple remained ignored.…”

Pilot-Scale Modelling of Aerated Lagoon Technology for the Treatment of Landfill Leachate: Case Study Hrybovychi Plant

“…Membrane treatments, including the most widespread reverse osmosis, are energy-expensive, and implementation of these processes requires significant capital and operating costs (Dushkyn et al, 2011). It is also advisable to use different energy-saving systems (Shchur et al, 2021). Anaerobic biological treatment of leachate (Mojiri et al, 2021;Zamri et al, 2017) could be economical due to the obtaining of biogas, a renewable energy source (Voytovych et al, 2020).…”